Product Description

American/Nh/ANSI Pin Type Fire Hose Coupling

Brief Description
A hose coupling is a connector on the end of a hose to connect or couple it with another hose orwith a tap or a hose appliance, such as an irrigation sprinkler. It is usually madeof steel, brass, stainless steel, aluminium or plastic. Used for combining water band with waterband ,fire hydrant ,water lance and the fire-fighting truck so that they are to supply water orfoam misture for putting out fire.
Our main production line for hose coupling is KD,KN,KY,KWA,KWS ect for fire hose coulping through electrophoretic technique,so that our product can be anti-corrosion.

Technical Specification

Fire Hose Coupling Type Inlet Outlet
 
 
British/John Morris Coupling
2.5″BS336 Φ63.5
2″BS336 Φ51
1.5″BS336 Φ38
2.5″BS336 Φ51
2.5″BS336 Φ38
2″BS336 Φ38

Fire Hose Coupling Type Inlet Outlet
 
American(ANSI Pin)Fire Hose Coupling
2.5″NH Φ63.5
2″NH Φ51
1.5″NH Φ38

Fire Hose Coupling Type Inlet Outlet
 
Nakajima(Machino) fire hose coupling
2.5″ Φ63.5
2″ Φ51
1.5″ Φ38

Fire Hose Coupling Type Inlet Outlet
 
Forestry Fire Hose Coupling
1.5″ Φ38
1.5″ 1.5″ BSP
1.5″ 1.5″ NPSH
1.5″ F1.5″ BSP

Fire Hose Coupling Type Inlet Outlet
 
Gost(Russian) Fire Hose Coupling
2″ Φ50
2.5″ Φ70
3″ Φ80
4″ Φ100

Fire Hose Coupling Type Inlet Outlet
UNI Fire Hose Coupling UNI70 Φ70
UNI45 Φ45

Fire Hose Coupling Type Inlet Outlet
 
 
Storz Fire Hose Coupling
4″ STORZ Φ100
3″ STORZ Φ75.5
2.5″ STORZ Φ63.5
2″ STORZ Φ51
1 3/4″ STORZ Φ44.5
1″ STORZ Φ38

Photoes

Package&Shipping

Our Company
We could supply fire hose, fire hose fittings, spray nozzle, coupling, automatic fire sprinkler system products, gate valves, check valves, ball valves, etc. All these products strictly confirming to JIS, API ans BS standards. All of our products comply with international quality standards and are greatly appreciate in avariety of markets around world. Our factory is covering an area of 15900 square meters, we now over 300 workers. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarteen total customer satisfaction. As a result of our high quality products and outstanding customer service, we have gained a globe sales network CHINAMFG the North America, South America, Mideast, Southeast Asia, East Europe, etc. 

Certificate

Other Fire Fighting Equipment

FAQ
1. Could you supply the samples?

Free samples always ready if the value is within our purview.

2.Do you have the MOQ?
For conventional products, Low MOQ.

3. Can you add some logo on the products?
Yes. We could OEM and design your logo.

4. Are you able to design or explore a new products for us?
Yes, we are able to, if the clients could supply the drawings or samples.

 

Certification: GB8013-2005, CCCF, CCC
Surface Treatment: Chrome Plated/Brass
Material: Aluminum/Brass
Type: British/John Morris/ American/Nh/Nakajima(Machino)
Application: Fire Hose Coupling
Transport Package: Bags/Cartons
Samples:
US$ 2/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

China Best Sales American/Nh/ANSI Pin Type Fire Hose Coupling

pin coupling

How Does a Pin Coupling Protect Connected Equipment from Shock Loads and Vibrations?

Pin couplings are designed to provide excellent protection to connected equipment from shock loads and vibrations, ensuring the smooth and reliable operation of the machinery. The unique features of pin couplings contribute to their ability to absorb and dampen shock loads and vibrations effectively:

  • Flexibility: Pin couplings possess a certain degree of flexibility due to the presence of movable pins. When subjected to sudden shock loads or vibrations, the pins can flex and move slightly, absorbing the impact and preventing it from transmitting directly to the connected equipment. This flexibility helps in reducing stress and minimizing the risk of damage to the machinery.
  • Torsional Compliance: The pin coupling’s design allows for a certain amount of torsional compliance. This means that when the connected shafts experience slight misalignments or angular displacements, the pin coupling can compensate for these variations without causing additional stress or vibration in the system. This feature ensures that the machinery remains in proper alignment even under dynamic conditions, reducing wear and tear.
  • Damping Characteristics: The presence of movable pins introduces damping characteristics to the coupling. When vibrations occur in the system, the pins can dampen these oscillations, preventing resonance and the amplification of vibrations. This damping effect improves the overall stability and performance of the machinery.
  • Strength and Resilience: High-quality pin couplings are constructed from durable materials with excellent fatigue resistance. This enables the coupling to withstand repeated shock loads and vibrations over an extended period without compromising its integrity. The strength and resilience of the pin coupling contribute to the protection of the connected equipment.

Overall, pin couplings are reliable and versatile components that can effectively protect connected equipment from shock loads and vibrations. Their flexibility, torsional compliance, damping characteristics, and robust construction make them suitable for various industrial applications where shock and vibration mitigation are essential for maintaining the health and longevity of machinery and equipment.

pin coupling

Can Pin Couplings Be Used for Both Motor-to-Shaft and Shaft-to-Shaft Connections?

Yes, pin couplings can be used for both motor-to-shaft and shaft-to-shaft connections in various mechanical systems. The versatile design of pin couplings allows them to connect two shafts with aligned or misaligned centers, making them suitable for a wide range of applications.

Motor-to-Shaft Connections: In motor-driven systems, pin couplings are commonly used to connect the motor shaft to the driven shaft of the equipment. The motor can be an electric motor, combustion engine, or any other type of power source. The pin coupling efficiently transfers torque from the motor shaft to the equipment’s driven shaft, enabling power transmission and mechanical motion.

Shaft-to-Shaft Connections: Pin couplings are also well-suited for shaft-to-shaft connections, where two separate shafts need to be joined together. This could be the case when extending the length of a shaft or connecting two separate pieces of rotating equipment. The pin coupling provides a secure and flexible connection between the two shafts, allowing torque to be transmitted between them while accommodating misalignment.

It is essential to consider the specific requirements of the application when selecting a pin coupling. Factors such as the amount of misalignment, torque capacity, operating conditions, and space constraints should be taken into account to ensure the coupling can effectively and reliably connect the motor and shafts.

Overall, the versatility and performance of pin couplings make them a popular choice for both motor-to-shaft and shaft-to-shaft connections in various industrial and mechanical systems.

pin coupling

Limitations and Disadvantages of Using Pin Couplings

While pin couplings offer various advantages and are suitable for many applications, they also have some limitations and disadvantages to consider:

  • Misalignment Restrictions: Pin couplings can accommodate a certain degree of misalignment, but excessive misalignment can lead to increased wear and stress on the coupling components. They are not as effective at handling large angular or parallel misalignments compared to other flexible couplings like gear or elastomeric couplings.
  • Less Damping Capacity: Pin couplings have limited damping capacity, which means they may not effectively absorb and reduce vibrations in the system. In applications where vibration damping is critical, elastomeric or flexible couplings may be more suitable.
  • Noisy Operation: The rigid nature of pin couplings can lead to increased noise during operation, especially at high speeds or in applications with significant misalignment. This noise can be a concern in environments where noise levels need to be minimized.
  • Higher Maintenance: Compared to maintenance-free couplings like certain types of elastomeric couplings, pin couplings may require more frequent inspection and maintenance. The pins and other components may experience wear over time and need replacement.
  • Environmental Limitations: Some pin couplings may not be suitable for use in corrosive or high-temperature environments, depending on the materials used. Stainless steel or other corrosion-resistant materials can help mitigate this limitation.
  • Size and Weight: In certain applications, the size and weight of pin couplings may be larger and heavier compared to other types of couplings. This can be a consideration in applications where weight is a concern or space is limited.

Despite these limitations, pin couplings remain a popular choice for many applications where their advantages, such as simplicity, durability, and cost-effectiveness, outweigh their disadvantages. It is crucial to carefully assess the specific requirements of the application and consider factors like misalignment, vibration, maintenance needs, and environmental conditions when selecting a coupling type.

China Best Sales American/Nh/ANSI Pin Type Fire Hose Coupling  China Best Sales American/Nh/ANSI Pin Type Fire Hose Coupling
editor by CX 2023-11-27