Nitrile Covered Hose Attack Hose: Durable Firefighting Performance for Demanding Applications

Firefighting hose must perform reliably under pressure, friction, contamination, changing weather, and repeated handling. An attack hose is not simply a tube for transporting water. It is a critical part of the firefighting system, connecting the water source to the nozzle while personnel move, reposition, and operate the line in difficult conditions. For this reason, the construction, cover material, reinforcement, pressure capability, and service life of the hose all influence operational safety.

The Nitrile Covered Hose Attack Hose is designed for demanding fire service, industrial, construction, agricultural, and emergency water-delivery applications. It combines a nitrile/thermoplastic rubber blend cover and lining with 100% high-tenacity polyester yarn reinforcement. Its ribbed exterior cover is engineered to improve resistance to abrasion when the hose is dragged across concrete, asphalt, gravel, flooring, and other rough surfaces.

Compared with conventional smooth-cover hoses, this design places additional emphasis on protection against mechanical wear, oil, petrochemicals, ozone, mildew, corrosion, and punctures. The result is a maintenance-free hose solution intended for users who need dependable performance without excessive cleaning, coating, or repair requirements.

Manufactured by Taizhou Shenlong Fire Science and Technology Co., Ltd., the hose reflects the company’s long-term experience in the research, development, production, sales, and service of lined fire hoses. Founded in 1995, the company supplies products for fire protection, construction, water conservancy, and related industries, while also supporting customized production for international trade applications.

Nitrile Covered Hose Attack Hose

What Is a Nitrile Covered Attack Hose?

A nitrile covered attack hose is a flexible, reinforced hose intended to deliver water or compatible firefighting fluids from a pump, hydrant, or other water source to an operating nozzle. The term “attack hose” generally refers to hose used by firefighting personnel to advance toward a fire and apply extinguishing media. It must therefore be flexible enough for rapid deployment while remaining strong enough to withstand internal pressure and external damage.

The hose consists of several functional elements. The inner lining provides the fluid-contact surface and is formulated to support resistance to water, oils, petrochemicals, and other conditions encountered in service. The reinforcement layer supplies pressure strength and dimensional stability. The outside cover protects the structure from abrasion, puncture, ozone, corrosion, mildew, and exposure to the working environment.

In this product, the nitrile/TPR blend is used for both the cover and lining. Nitrile contributes resistance to oils, fuels, and many petroleum-based substances, while the thermoplastic rubber component supports flexibility and practical handling characteristics. The reinforcement is made from 100% high-tenacity polyester yarn, providing a strong textile framework around the hose.

The outer surface includes ribs. These ribs are not merely decorative. They create raised contact areas that can reduce the amount of direct friction applied to the main cover when the hose is dragged. In a working environment, this can help limit surface scuffing and delay wear caused by repeated movement over rough ground.

Key Construction Features

Nitrile and TPR Blend Cover

The exterior cover is one of the most exposed parts of an attack hose. During deployment, the hose may pass over sharp edges, unfinished concrete, vehicle-access roads, warehouse floors, construction areas, or outdoor terrain. A nitrile/TPR blend provides a durable polymer surface designed for practical firefighting use.

Nitrile is widely valued for resistance to oils, fuels, and petrochemicals. This is important when hose is stored or used near vehicles, machinery, fuel storage areas, workshops, industrial plants, or emergency response locations. The TPR component supports the balance between toughness and flexibility, helping the hose remain manageable during installation and operation.

Because the cover and lining use a compatible blend, the product offers an integrated material solution rather than relying on a basic textile jacket alone. This construction helps protect the reinforcement from moisture, contamination, and external impact.

100% High-Tenacity Polyester Reinforcement

Internal pressure places a substantial load on the hose wall. The high-tenacity polyester reinforcement provides the tensile strength needed to support the hose during pressurization and movement. Polyester yarn is also suitable for textile reinforcement because it offers strength, flexibility, and resistance to normal environmental exposure.

The reinforcement is designed to work together with the polymer lining and cover. The lining contains the conveyed fluid, the yarn reinforcement resists pressure-related expansion, and the cover protects the assembly from external damage. This layered structure is essential for maintaining a balance of flexibility and pressure capability.

Ribbed Exterior Cover

The ribbed exterior is a major distinction between this hose and many conventional smooth-cover products. When a hose is pulled along the ground, the raised ribs take much of the initial contact with the surface. This can reduce continuous rubbing across a broad section of the cover.

In high-abrasion environments, the ribbed structure may provide a practical service-life advantage. It can help the hose resist scuffing and wear while maintaining a flexible body for deployment. The ribs also make the hose surface easier to identify by touch, which may assist handling in low-visibility or high-pressure situations.

No hose is immune to cutting, crushing, or severe mechanical damage. Proper handling remains necessary. However, a protective ribbed cover can provide an additional layer of defense that is particularly useful where the line must be moved frequently or dragged over rough surfaces.

Performance Advantages Over Conventional Hose Designs

High Abrasion Resistance

Abrasion is one of the most common causes of premature hose damage. Repeated dragging gradually wears the outer cover, especially when the hose is used on abrasive concrete, gravel, asphalt, metal surfaces, or construction sites. Once the cover is compromised, the reinforcement and lining become more vulnerable.

The ribbed nitrile cover addresses this problem through both material selection and surface design. The nitrile/TPR blend provides a resilient polymer barrier, while the ribs reduce direct contact between the hose body and the ground. This dual approach can help the hose remain serviceable through repeated deployment and retrieval.

Resistance to Oil and Petrochemicals

Fire response equipment is often used around vehicles, engines, industrial machinery, fuel storage, workshops, and manufacturing facilities. Contact with oil or petrochemicals can weaken or contaminate unsuitable hose materials. The nitrile-based cover and lining are selected for improved resistance to these substances.

This resistance makes the hose suitable for more than ordinary municipal water delivery. It can also be considered for industrial fire protection, emergency response areas, construction projects, and locations where occasional contact with petroleum-based contaminants is possible.

Resistance to Ozone and Weathering

Fire hose may be stored in vehicles, cabinets, warehouses, outdoor facilities, or equipment rooms. Over time, exposure to ozone, sunlight, humidity, and changing temperatures can affect polymer materials. Ozone resistance helps reduce the likelihood of premature surface cracking caused by environmental exposure.

The specified operating temperature range is -30°C to 70°C. This range supports use in a variety of climates, from cold outdoor environments to warm industrial and emergency response settings. Users should still consider local conditions, storage practices, fluid temperature, and applicable operating procedures when selecting hose.

Protection Against Punctures and Corrosion

Sharp edges, debris, hardware, and rough surfaces can create puncture risks during hose deployment. The reinforced polymer construction helps provide a protective barrier around the pressure-carrying structure. The cover also helps shield the hose from moisture and substances that may contribute to corrosion of connected components or contamination of the assembly.

The hose itself is not a metal product, so resistance to corrosion should be understood as resistance of the hose construction and its protective materials to corrosive environments. Couplings, clamps, nozzles, and other accessories must be selected and maintained separately according to their own material requirements.

Resistance to Mildew

Hose that remains damp after use may be exposed to mildew growth, unpleasant odors, and deterioration of external textile or polymer surfaces. The nitrile-based construction offers resistance to mildew and supports easier post-use maintenance. Nevertheless, proper draining, drying, inspection, and storage remain important for all firefighting hose products.

Maintenance-Free Design

The product is described as maintenance free in normal intended use. This means it is designed to minimize routine maintenance demands compared with products that require frequent special treatment of the cover. It does not mean that inspection and safe handling can be ignored.

Firefighting organizations should continue to examine hose for cuts, bulges, exposed reinforcement, coupling damage, contamination, kinks, and other visible defects. A maintenance-free design reduces unnecessary care requirements, but responsible inspection remains essential for safety-critical equipment.

Pressure Ratings and Available Sizes

The Nitrile Covered Hose Attack Hose is available in four common inner diameters: 1-1/2 inches, 2 inches, 2-1/2 inches, and 3 inches. These sizes cover a range of attack, supply, industrial, and water-transfer requirements. The hose can be supplied in 50-foot, 75-foot, and 100-foot lengths, allowing users to configure hose lines according to equipment layout and operational needs.

The listed working pressure is 250 or 300 psi, equivalent to 17 or 21 bar. The listed test pressure is 375 or 450 psi, equivalent to 26 or 32 bar. The listed burst pressure is 750 or 900 psi, equivalent to 51 or 63 bar. The exact rating should be confirmed for the selected size, construction, and production specification before purchase or installation.

Inner Diameter	Metric Diameter	Working Pressure	Test Pressure	Burst Pressure
1-1/2 inch	38 mm	250, 300 psi / 17, 21 bar	375, 450 psi / 26, 32 bar	750, 900 psi / 51, 63 bar
2 inch	52 mm	250, 300 psi / 17, 21 bar	375, 450 psi / 26, 32 bar	750, 900 psi / 51, 63 bar
2-1/2 inch	64 mm	250, 300 psi / 17, 21 bar	375, 450 psi / 26, 32 bar	750, 900 psi / 51, 63 bar
3 inch	75 mm	250, 300 psi / 17, 21 bar	375, 450 psi / 26, 32 bar	750, 900 psi / 51, 63 bar

Working pressure is the pressure at which the hose is intended to operate under specified conditions. Test pressure is a higher pressure used for inspection or verification. Burst pressure represents the stated pressure level at which the hose may fail under controlled testing. These values should not be interpreted as permission to exceed the working pressure during normal operation.

Pressure loss also depends on internal diameter, hose length, water flow rate, couplings, bends, elevation, and nozzle configuration. A larger diameter may support greater flow with lower friction loss, while a smaller diameter can be easier to handle in certain attack-line situations. Fire departments and industrial users should select the diameter based on pump capacity, required flow, crew handling, and system design.

Applications of Nitrile Covered Attack Hose

Municipal Firefighting

Municipal fire departments require hose that can be rapidly deployed, moved around structures, and returned to service after repeated use. The ribbed cover helps protect against abrasion during advancement across streets, sidewalks, driveways, and building floors. The available sizes and lengths allow departments to assemble attack or supply configurations for different incidents.

The hose can be paired with compatible fire hose couplings, branch pipes, nozzles, hydrant connections, and pump systems. Selection should take into account local standards, connection types, operating pressures, and the intended firefighting medium.

Industrial Fire Protection

Industrial facilities may contain oil, fuel, chemicals, machinery, and hard flooring that create more severe conditions than ordinary water-transfer applications. Nitrile’s resistance to oil and petrochemicals makes this hose particularly suitable for facilities where contamination resistance is important.

Potential industrial locations include manufacturing plants, warehouses, power-related facilities, garages, fuel-handling areas, processing sites, and logistics centers. A site assessment should determine whether the hose requires additional chemical compatibility, temperature resistance, static-control features, or regulatory certification.

Construction and Infrastructure Projects

Construction sites frequently expose hose to dust, mud, aggregate, sharp materials, unfinished surfaces, and vehicle traffic. The abrasion-resistant ribbed cover can help reduce damage caused by dragging and repositioning. The product may be used for emergency fire protection, water supply, site dewatering, or other compatible water-delivery tasks.

Construction managers should protect hose from direct vehicle passage, sharp rebar, exposed fasteners, welding sparks, and excessive heat. Where hose must cross a roadway or access route, suitable hose bridges or protective ramps should be used.

Water Conservancy and Emergency Water Transfer

The company’s products are used in water conservancy and related industries. Depending on the project requirements, the Nitrile Covered Hose Attack Hose may be suitable for emergency pumping, temporary water distribution, and demanding transfer operations where flexibility and abrasion resistance are valuable.

Water conservancy projects may involve long hose runs, uneven ground, changing weather, and difficult access. The choice of diameter and length should be made according to pump characteristics, elevation changes, required delivery volume, and the anticipated handling method.

Agricultural and Rural Fire Response

Agricultural environments may include fuel, lubricants, fertilizers, machinery, dry vegetation, rough ground, and remote water sources. A hose with resistance to oil, mildew, and abrasion can offer practical benefits in these locations. The available 50-foot, 75-foot, and 100-foot lengths can support different farm layouts and emergency response distances.

For agricultural use, hose should be stored away from prolonged direct sunlight, rodents, sharp tools, and chemical containers. After use, it should be drained and allowed to dry before being coiled and placed in storage.

Why Material Selection Matters in Fire Hose Manufacturing

Hose performance depends heavily on the interaction between its materials. A strong reinforcement layer alone cannot compensate for a weak cover. Similarly, a durable outer surface cannot provide safe pressure performance if the reinforcement and lining are not properly designed.

The Nitrile Covered Hose Attack Hose uses a coordinated material system. The nitrile/TPR lining provides a fluid-contact layer. The high-tenacity polyester yarn supports pressure resistance. The ribbed nitrile/TPR cover provides external protection. Each part has a specific role, and the performance of the finished hose depends on how effectively these elements are bonded and formed together.

Nitrile is especially useful when resistance to petroleum-based substances is required. Traditional textile-jacketed hose may be lightweight and flexible, but an elastomeric covered construction can provide a different level of protection against contamination and mechanical exposure. The choice between products should be based on the operating environment rather than price alone.

TPR, or thermoplastic rubber, can contribute to flexibility and process efficiency while maintaining rubber-like elasticity. Its inclusion in the blend helps create a cover and lining that are suited to repeated handling. The final formulation and processing parameters determine the exact balance of flexibility, hardness, abrasion resistance, and temperature performance.

Manufacturing Strengths and Production Capabilities

Long-Term Industry Experience

Taizhou Shenlong Fire Science and Technology Co., Ltd. was founded in 1995 and has developed experience across research and development, manufacturing, sales, and service. More than three decades of industry participation provide a foundation for understanding the practical requirements of lined fire hoses and related products.

Long-term experience is valuable because hose manufacturing requires control of materials, textile reinforcement, dimensions, pressure performance, and finishing quality. It also requires knowledge of how products behave during storage, transport, coupling, deployment, and repeated use.

Integrated Research, Production, Sales, and Service

The company operates across research and development, production, sales, and service rather than focusing only on one stage of the supply chain. This integrated structure can support faster communication between customer requirements and production decisions.

For buyers, an integrated supplier may simplify product selection, technical communication, order coordination, customization discussions, and after-sales support. It can also help ensure that feedback from actual applications is considered in future product improvements.

Production of Different Lined Fire Hose Materials

The company’s main products include various materials of lined fire hoses. This material experience is relevant to customers comparing nitrile, PVC, polyurethane, rubber, or other hose constructions. Different applications require different balances of pressure, flexibility, weight, chemical resistance, abrasion protection, and temperature performance.

A supplier with experience across multiple material categories can help customers identify a construction that matches the environment. For example, a lightweight hose may be preferable for rapid manual deployment, while a more heavily protected hose may be better for industrial or construction use. The correct decision depends on the intended duty rather than a single performance characteristic.

Support for Customized Products

In addition to its core fire hose products, the company can undertake foreign trade products according to customer requirements, including rubber, PVC, polyurethane, and double-sided tape products. This demonstrates production flexibility and the ability to work with varied material specifications and customer programs.

For the Nitrile Covered Hose Attack Hose, customization discussions may involve diameter, length, pressure rating, coupling type, color, marking, packaging, and application-specific requirements. Any customization should be confirmed through a formal technical specification so that all parties understand the final construction and performance expectations.

Export and Distribution Experience

The company’s products are sold in more than 20 provinces, cities, and autonomous regions and are also manufactured for export through cooperation with domestic foreign trade companies. This distribution experience supports the management of orders for different markets and application environments.

International buyers should verify the standards and approvals required in their destination country. Hose dimensions, coupling threads, pressure testing, labeling, documentation, and fire-service certifications can vary by region. A capable manufacturer can help organize the required technical information before production.

Production Process Considerations

A high-quality covered hose begins with material preparation. Nitrile and TPR compounds must be selected and processed according to the intended performance requirements. The compound must be sufficiently uniform to support consistent lining and cover properties. High-tenacity polyester yarn must also meet the required strength and consistency for reinforcement.

The lining is formed first or integrated into the hose-forming process according to the manufacturing method. The reinforcement yarn is applied in a controlled pattern that supports pressure resistance and flexibility. The outer nitrile/TPR cover is then formed over the reinforcement, with the ribbed structure shaped as part of the cover profile.

Control of wall thickness, concentricity, reinforcement placement, rib dimensions, and bonding is important. Inconsistent construction can create weak points, uneven flexibility, or pressure performance that differs from one section to another. Production controls should therefore cover raw materials, processing temperatures, dimensions, surface finish, and final testing.

After forming and curing or stabilization, the hose should be inspected for visual defects, surface irregularities, incomplete bonding, cuts, bubbles, exposed reinforcement, and dimensional variation. Pressure testing verifies the hose’s ability to withstand its specified test conditions. Packaging should prevent unnecessary bending, crushing, contamination, or exposure during storage and transportation.

The manufacturer’s research and development capability is important in this process. Material formulations and hose structures can be adjusted according to application feedback, customer specifications, and target performance. Continuous improvement may focus on abrasion resistance, flexibility, pressure stability, chemical resistance, weight, and production consistency.

Product Advantages for Professional Buyers

Lower Risk of Abrasion-Related Replacement

Replacing damaged hose creates direct purchasing costs and indirect costs related to inspection, downtime, transport, and emergency readiness. The ribbed cover is designed to withstand high-abrasion conditions, which can help reduce wear-related replacement when the hose is used correctly.

Actual service life depends on many factors, including frequency of use, ground conditions, pressure cycles, storage, chemical exposure, dragging technique, and inspection practices. The design provides a strong starting point for durability, but operational discipline remains important.

Broader Environmental Compatibility

Resistance to oil, petrochemicals, ozone, mildew, punctures, corrosion, and abrasion makes the hose suitable for a broader range of locations than a basic water hose. This versatility can simplify procurement for organizations that operate across municipal, industrial, agricultural, and construction environments.

Efficient Storage and Deployment Options

The availability of 50-foot, 75-foot, and 100-foot lengths gives users flexibility when planning hose packs, vehicle inventories, fixed cabinets, and temporary water-delivery systems. Shorter lengths may be easier to handle in confined areas, while longer lengths can reduce the number of connections required for extended runs.

The 1-1/2-inch and 2-inch sizes can be considered where manual handling and attack-line mobility are priorities. The 2-1/2-inch and 3-inch sizes may be selected for larger flow requirements or supply applications, subject to pump capacity and system design.

Practical Handling Characteristics

An attack hose must combine protection with manageable flexibility. Excessively rigid hose can slow deployment and increase crew effort, while insufficiently protected hose may wear quickly. The nitrile/TPR construction and textile reinforcement are intended to provide a practical balance for firefighting and industrial handling.

Selection Guide for Nitrile Covered Attack Hose

Determine the Required Flow

Begin by identifying the required water flow and nozzle performance. Diameter affects friction loss, weight, flexibility, and flow capacity. The selected hose should work with the pump, hydrant, manifold, nozzle, and coupling system as a complete assembly.

Confirm Operating Pressure

Confirm the system’s normal operating pressure, pressure surges, pump shutoff pressure, and expected test pressure. The hose’s working pressure must be higher than the maximum anticipated operating pressure. Pressure ratings should be reviewed together with local regulations and the specifications of connected equipment.

Evaluate the Surface Conditions

Consider whether the hose will be dragged over concrete, gravel, asphalt, steel, unfinished flooring, soil, or other abrasive surfaces. If high abrasion is expected, the ribbed cover can provide an important advantage. Additional protection may still be required in areas with sharp edges or vehicle traffic.

Review Chemical Exposure

Identify potential contact with fuels, lubricants, oils, solvents, fertilizers, industrial chemicals, or contaminated water. Nitrile offers useful resistance to oils and petrochemicals, but no material is compatible with every chemical. A compatibility review should be completed where specific chemicals are present.

Select the Appropriate Length

Choose a length that supports the required operating distance without creating unnecessary weight or storage difficulty. Multiple shorter sections can improve flexibility and replacement convenience, while longer sections can reduce connection points. The final arrangement should reflect crew size, vehicle configuration, cabinet capacity, and deployment procedures.

Check Coupling Compatibility

The hose must be supplied with or connected to couplings that match the local system. Thread types, nominal sizes, sealing methods, materials, and pressure ratings should all be checked. A technically suitable hose can become unsafe or unusable if its couplings do not match the hydrant, pump, nozzle, or manifold.

Installation, Use, and Storage Recommendations

Before first use, inspect the hose and couplings for visible damage caused during transportation. Verify the size, length, pressure rating, connection type, and labeling against the purchase specification. If the hose is part of a regulated fire protection system, complete any required acceptance testing before placing it into service.

During deployment, avoid dragging the hose across sharp edges whenever possible. Keep it away from open flames, hot metal, welding sparks, and surfaces that exceed the specified temperature range. Do not drive over an unprotected hose, and use a suitable hose bridge when crossing roads or vehicle routes.

Avoid tight kinks because they can restrict flow, increase local stress, and make pressure behavior less predictable. When moving a charged line, use controlled handling methods and maintain awareness of coupling locations, bends, and obstacles. Never exceed the hose’s stated working pressure.

After use, drain the hose thoroughly. Rinse away mud, chemicals, oils, and other contaminants using a method appropriate for the material and local procedures. Allow the hose to dry before storage. Store it in a cool, dry, ventilated location away from direct sunlight, ozone-generating electrical equipment, heat sources, sharp objects, and aggressive chemicals.

Coil or fold the hose according to the organization’s operating procedure. Avoid compressing it beneath heavy equipment for long periods. During periodic inspection, look for cuts, deep abrasion, bulges, soft areas, exposed reinforcement, cover separation, damaged ribs, coupling movement, and signs of chemical attack.

Quality and Safety Considerations

Fire hose should be treated as safety-critical equipment. Buyers should request the technical data relevant to their application, including pressure ratings, dimensions, material construction, temperature range, coupling details, available lengths, inspection requirements, and applicable test documentation.

Quality evaluation should consider more than appearance. A smooth-looking surface does not automatically indicate superior pressure performance, and a heavy hose is not necessarily the most suitable choice. Important factors include reinforcement strength, lining integrity, cover bonding, dimensional consistency, pressure stability, abrasion resistance, and chemical compatibility.

For large purchases, buyers may request samples, pre-production approvals, inspection reports, or batch testing arrangements. These steps can help confirm that the delivered hose matches the approved specification. Export customers should also confirm packaging, marking, documentation, and shipping requirements at the quotation stage.

Local fire codes, national standards, insurance requirements, and authority approval procedures may apply. The product should be selected and used in accordance with the regulations governing the intended location. Where certification is required, customers should confirm the precise certification status and scope before ordering.

How the Product Compares With Other Hose Options

Compared with a basic textile-jacketed hose, a nitrile-covered hose offers a more substantial polymer barrier against oil, petrochemicals, abrasion, mildew, and environmental exposure. This can be valuable in industrial and construction settings. The tradeoff may be differences in weight, flexibility, cost, and storage volume, so the decision should reflect the operating environment.

Compared with a smooth-cover rubber hose, the ribbed exterior provides an additional surface design intended to reduce direct wear during dragging. The ribs can be especially useful where repeated movement over rough surfaces is expected.

Compared with a lightweight PVC hose, the nitrile/TPR and high-tenacity polyester construction is oriented toward pressure-bearing and demanding firefighting service. PVC may be suitable for certain water-transfer applications, but the required pressure, abrasion resistance, flexibility, and temperature range must be compared carefully.

Compared with an unreinforced hose, the high-tenacity polyester yarn reinforcement provides the structural support needed for higher-pressure operation. Reinforcement is essential where the hose must withstand substantial internal pressure while remaining flexible enough for field handling.

These comparisons do not mean that one hose construction is suitable for every situation. The best product is the one whose materials, pressure rating, diameter, length, coupling, and environmental resistance match the actual application.

Company Capabilities and Customer Support

Taizhou Shenlong Fire Science and Technology Co., Ltd. is located in Taizhou, Jiangsu Province, China. Its business covers research and development, manufacturing, sales, and service, with a primary focus on lined fire hose products. The company also supports related foreign trade product programs based on customer requirements.

The company’s product experience extends across fire, construction, water conservancy, and other industries. This sector coverage provides insight into different hose requirements, including high-abrasion use, outdoor deployment, temporary water transfer, industrial contamination, and emergency response.

For distributors, importers, fire equipment suppliers, and project contractors, the ability to discuss product specifications directly with a manufacturer can support more efficient sourcing. Important topics may include the required diameter, pressure class, length, cover color, surface marking, coupling configuration, packaging method, order quantity, and delivery schedule.

Customers can also discuss related fire protection products, including fire hose, hydrant hose, fire hose couplings, fire hose nozzles, fire accessories, fire cabinets, agricultural hose, industrial hose, and trenchless rehabilitation hose. A broader product range can help buyers coordinate multiple components through one experienced supplier.

Q&A About Nitrile Covered Hose Attack Hose

What is the main advantage of this attack hose?

The main advantage is the combination of a nitrile/TPR cover and lining, high-tenacity polyester reinforcement, and ribbed exterior design. Together, these features support pressure performance, flexibility, abrasion resistance, and resistance to oil, petrochemicals, ozone, mildew, punctures, and harsh handling conditions.

What sizes are available?

The listed inner diameters are 1-1/2 inches, 2 inches, 2-1/2 inches, and 3 inches. Their metric equivalents are 38 mm, 52 mm, 64 mm, and 75 mm.

What lengths can be supplied?

The available standard lengths are 50 feet, 75 feet, and 100 feet. Other configurations may be discussed with the manufacturer according to the order requirement.

What is the operating temperature range?

The stated temperature range is -30°C to 70°C. Users should consider both ambient temperature and the temperature of the conveyed fluid, as well as storage and exposure conditions.

Is the hose suitable for oil-contaminated environments?

The nitrile-based material provides resistance to oils, fuels, and petrochemicals, making the hose suitable for many industrial and emergency response environments where occasional exposure may occur. Specific chemical compatibility should be confirmed if the hose will contact concentrated or unusual chemicals.

Does the ribbed cover prevent all abrasion damage?

No hose can prevent all damage. The ribs are designed to improve resistance to abrasion by reducing direct friction on the main hose body. The hose should still be kept away from sharp edges, excessive heat, vehicle traffic, and severe mechanical hazards.

What is the working pressure?

The listed working pressure is 250 or 300 psi, equivalent to 17 or 21 bar. The precise rating should be confirmed for the selected product specification and should not be exceeded during normal operation.

What is the burst pressure?

The listed burst pressure is 750 or 900 psi, equivalent to 51 or 63 bar. Burst pressure is a test value and must not be treated as an acceptable operating pressure.

Can the hose be used with fire hose couplings and nozzles?

Yes, it can be configured for use with compatible fire hose couplings and nozzles. The coupling size, thread, sealing method, pressure rating, and local connection standard must be confirmed before ordering.

Is the product maintenance free?

The product is designed to be maintenance free in normal intended use, meaning it minimizes routine maintenance requirements. Safety inspections, cleaning, drying, pressure verification, and proper storage are still recommended for responsible equipment management.

Which diameter should a buyer choose?

The choice depends on the required flow, pump capacity, friction loss, handling conditions, nozzle type, and hose-line configuration. Smaller diameters may be easier to handle, while larger diameters may support greater flow. A complete system calculation should guide the final selection.

Can the manufacturer support customized orders?

The company can discuss customized foreign trade products and product requirements. Buyers should provide clear specifications covering size, length, pressure, coupling, marking, packaging, and destination-market requirements so that the final quotation and production plan are accurate.

Conclusion

The Nitrile Covered Hose Attack Hose is designed for users who need more than basic water delivery. Its nitrile/TPR blend cover and lining provide resistance to oil, petrochemicals, ozone, mildew, punctures, corrosion, and abrasion. Its 100% high-tenacity polyester yarn reinforcement supports pressure performance, while the ribbed exterior cover adds protection against wear caused by dragging across rough surfaces.

With working pressure options of 250 and 300 psi, test pressure options of 375 and 450 psi, and burst pressure options of 750 and 900 psi, the hose can be specified for a range of professional firefighting and industrial requirements. The availability of 1-1/2-inch, 2-inch, 2-1/2-inch, and 3-inch diameters, together with 50-foot, 75-foot, and 100-foot lengths, supports flexible system design.

Its strongest competitive advantages are the ribbed abrasion-resistant cover, nitrile-based chemical resistance, broad environmental suitability, reinforced pressure construction, and reduced maintenance requirements. These features make it a practical option for municipal fire departments, industrial facilities, construction projects, agricultural operations, water conservancy work, and emergency response systems.

Supported by Taizhou Shenlong Fire Science and Technology Co., Ltd.’s experience since 1995, integrated research and production capabilities, broad lined-fire-hose product knowledge, customization support, and domestic and export distribution experience, the product is positioned as a durable solution for demanding hose applications.

For the best result, buyers should match the hose to the intended flow, pressure, temperature, chemical exposure, coupling system, storage method, and applicable standards. Correct selection and responsible handling will help the hose deliver reliable service throughout its working life.

References

1. Manufacturer technical information for Nitrile Covered Hose Attack Hose, including material construction, pressure ratings, sizes, lengths, and temperature range.

2. Manufacturer company information concerning research and development, production, sales, service, product applications, and industry history.

3. General principles of fire hose selection, inspection, pressure testing, storage, and operational safety.

4. General technical references concerning nitrile rubber resistance to oils, fuels, and petrochemical exposure.

5. General textile-reinforcement references concerning high-tenacity polyester yarn in flexible pressure hose construction.

Product: Nitrile Covered Hose Attack Hose