Product Description

Press fitting standard: GB/T 19228.1-2003, DVGW W534-1995 and JWWA G116

Pipe standard: GB/T 19228.22003, BS EN 1571 and JIS G3448

Sealing ring standard: GBT 19228.3-2003, EN681-1:1998

Material: Stainless steel 304/304L and 316/316L available.

— Max working pressure 1.6MPa (equal to 232 psi),
Testing water pressure:2.5MPa for JIS sizes (equal to 362.5psi),and 5MPa for EN1571 sizes.

– Working temperature from -20 ºCto +110 ºC (with Chlorinated buty rubber O-ring).
– Suit medium:cold water, hot water, compressed air, gas, oil etc.

1. Cold and hot water supply
2. Heating supply
3. Fire protection
4. Medicinal gas
5. Industrial petroleum pipeline system
other products:
Elbow 90 degree A type/Elbow 90 degree B type
Elbow 45 degree A type/Elbow 45 degree B type
Coupling Union/Coupling Male/Coupling Female
90 degree Female elbow with wall plate
Expansion compensator
The product features as below: 
1, thin wall stainless steel pipe could last for 70 years, it is the same life time with normal buildings. 
2, no smell, no rusty. 
3, recycle material 
4, avoid welding, avoid fire dangerous. 

Connection: Welding
Structure: Universal
Flexible or Rigid: Flexible
Material: Stainless Steel
Standard: Standard
Delivery Time: 10-30 Days After Down Payment


Customized Request


What Is a Coupling?

A coupling is a mechanical device that links two shafts together and transmits power. Its purpose is to join rotating equipment while permitting a small amount of misalignment or end movement. Couplings come in a variety of different types and are used in a variety of applications. They can be used in hydraulics, pneumatics, and many other industries.


Coupling is a term used to describe a relationship between different modules. When a module depends on another, it can have different types of coupling. Common coupling occurs when modules share certain overall constraints. When this type of coupling occurs, any changes to the common constraint will also affect the other modules. Common coupling has its advantages and disadvantages. It is difficult to maintain and provides less control over the modules than other types of coupling.
There are many types of coupling, including meshing tooth couplings, pin and bush couplings, and spline couplings. It is important to choose the right coupling type for your specific application to get maximum uptime and long-term reliability. Listed below are the differences between these coupling types.
Rigid couplings have no flexibility, and require good alignment of the shafts and support bearings. They are often used in applications where high torque is required, such as in push-pull machines. These couplings are also useful in applications where the shafts are firmly attached to one another.
Another type of coupling is the split muff coupling. This type is made of cast iron and has two threaded holes. The coupling halves are attached with bolts or studs.


The coupling function is an incredibly versatile mathematical tool that can be used in many different scientific domains. These applications range from physics and mathematics to biology, chemistry, cardio-respiratory physiology, climate science, and electrical engineering. The coupling function can also help to predict the transition from one state to another, as well as describing the functional contributions of subsystems in the system. In some cases, it can even be used to reveal the mechanisms that underlie the functionality of interactions.
The coupling selection process begins with considering the intended use of the coupling. The application parameters must be determined, as well as the operating conditions. For example, if the coupling is required to be used for power transmission, the design engineer should consider how easily the coupling can be installed and serviced. This step is vital because improper installation can result in a more severe misalignment than is specified. Additionally, the coupling must be inspected regularly to ensure that the design parameters remain consistent and that no detrimental factors develop.
Choosing the right coupling for your application is an important process, but it need not be difficult. To find the right coupling, you must consider the type of machine and environment, as well as the torque, rpm, and inertia of the system. By answering these questions, you will be able to select the best coupling for your specific application.


A coupling is a device that connects two rotating shafts to transfer torque and rotary motion. To achieve optimal performance, a coupling must be designed for the application requirements it serves. These requirements include service, environmental, and use parameters. Otherwise, it can prematurely fail, causing inconvenience and financial loss.
In order to prevent premature failure, couplings should be properly installed and maintained. A good practice is to refer to the specifications provided by the manufacturer. Moreover, it is important to perform periodic tests to evaluate the effectiveness of the coupling. The testing of couplings should be performed by qualified personnel.
China Standard F304/316L Stainless Steel Press Fittings Slip Coupling   coupling contractionsChina Standard F304/316L Stainless Steel Press Fittings Slip Coupling   coupling contractions
editor by CX 2023-05-24