China Hot selling American/Nh/ANSI Pin Type Fire Hose Coupling for Fire Hose

Product Description

American/NH/ANSI Pin type fire hose coupling for fire hose

Description
A Fire hose coupling is connector on the end of hose to connect or couple it with another hose or with a tap or hose appliance, such as irrigation sprinkler. It is usually made of steel,brass,stainless steel,aluminium or plastic.Used for combining water band with water band ,fire hydrant ,water lance and the fire-fighting truck so that they are to supply water or foam misture for putting out fire.

Technical Specification

Model KD KY KN KJ
Diameter(mm) DN50 DN65 DN80 DN50 DN65 DN50 DN65 DN50/
DN65
DN65/
DN80
Working Pressure(Mpa) 1.6
Testing Pressure(Mpa) 2.4
Available Medium Clear Water, Foam mixed liquid

 

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

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

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Customization:
Available

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China Hot selling American/Nh/ANSI Pin Type Fire Hose Coupling for Fire Hose

pin coupling

Can Pin Couplings Accommodate High Torque and High-Speed Applications?

Pin couplings are versatile and robust, making them suitable for a wide range of applications, including those involving high torque and high-speed requirements. However, the specific design and construction of the pin coupling will determine its capacity to handle such demanding conditions.

The ability of a pin coupling to accommodate high torque depends on factors such as the material used, the size and number of pins, and the overall design. High-quality pin couplings are often made from strong and durable materials like alloy steel, which allows them to withstand significant torque loads without failure or deformation.

Similarly, the capability of a pin coupling to handle high speeds depends on factors such as the balance of the coupling and the precise manufacturing of the pins and hubs. Properly balanced pin couplings can operate at higher speeds without generating excessive vibration or causing premature wear.

When selecting a pin coupling for high torque and high-speed applications, it is essential to consider the following:

  • Design and Construction: Opt for pin couplings with a robust and well-engineered design to handle the expected torque and speed requirements.
  • Material: Choose pin couplings made from high-quality materials known for their strength and fatigue resistance.
  • Size: Select an appropriate size of pin coupling that can accommodate the torque and speed expected in the application.
  • Manufacturer’s Ratings: Refer to the manufacturer’s specifications and torque-speed curves to ensure the coupling meets the desired performance criteria.

By carefully considering these factors and choosing a pin coupling designed for high torque and high-speed applications, you can ensure reliable and efficient power transmission in demanding industrial settings.

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 Hot selling American/Nh/ANSI Pin Type Fire Hose Coupling for Fire Hose  China Hot selling American/Nh/ANSI Pin Type Fire Hose Coupling for Fire Hose
editor by CX 2023-10-02