Non-Return Valve
Application
The valve is used for shipbuilding, ship repair and oil platform with high quality.
Configuration Options
|
Name of Parts |
Material |
Advantages/Disadvantages |
|
Valve Body |
Bronze |
Pressure resistance, wear resistance, and toughness are higher than those of brass. Bronze has a certain delay in the rusting time of the valve. more expensive than brass |
|
Brass |
Brass is easy to cast and press work. Has good mechanical properties and corrosion resistance, compared with other copper alloys, low price, beautiful color, |
|
|
Valve Bonnet |
Bronze |
Good castability, wear and corrosion resistance and stable chemical properties |
|
Brass |
It has good mechanical properties, good machinability, can withstand hot and cold pressure processing, and is used for various structural parts in cutting and stamping processing. |
|
|
Valve Disc |
Bronze |
Bronze has excellent low temperature resistance, the price is a little more expensive than brass. |
|
Brass |
Good mechanical properties, good plasticity in hot state, good plasticity in cold state, good machinability, easy fiber welding and welding, corrosion resistance, but easy to produce corrosion cracking, and cheap |
|
|
Gasket |
Non-asbestos |
It has very good water tightness, air tightness, and fuel tightness, good mechanical properties, oil resistance, temperature resistance, and pressure resistance. |
|
Comparison |
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Product Picture of other low quality supplier
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Product Picture of our factory
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Other low quality supplier |
Consequence |
Our Factory
|
Result |
|
Jerry-build, the wall thickness of the valve body is not processed according to the standard |
Uneven thickness, the valve body is easy to be damaged, and the service life is short. |
Strictly in accordance with the standard processing, uniform thickness |
Use with confidence, meet user needs, and the product has a long service life |
|
In order to reduce cost, bronze valve disc is replaced with cast iron valve core, |
Cast iron valve disc is easy to corrode and break |
Strictly select materials according to user requirements |
High safety factor and reasonable structure |
|
Manufacturers save costs and purchase unqualified standard bolts |
The valve leaves a safety hazard, which is easy to cause an accident |
According to customer requirements, use standard bolts. |
Use it with confidence, reduce safety hazards and reduce the accident rate. |
|
Use ordinary round steel stem instead of stainless steel stem |
The performance of the substitute material is unstable, the ordinary round steel is processed, the valve stem is thin and there is no heat treatment, which leads to the deterioration of the valve quality. |
Made of stainless steel, the diameter of the valve stem meets the design requirements, and it has undergone high temperature quenching and tempering heat treatment. |
High safety factor, reasonable structure, long product life |
|
Use iron, carbon steel to make valves and repair scrap valves as brand new ones. |
Such products generally have large errors in hardness and accuracy, which are prone to accidents. |
Manufacture brand new valves in strict accordance with customer material requirements, never shoddy. |
Meet the hardness and precision requirements of standard valves, |
List
1) JIS F7356 Check Valve
2) JIS F7358 Check Valve
3) JIS F7359 Check Valve
4) JIS F7371 Check Valve
5) JIS F7372 Check Valve
6) JIS F7373 Check Valve
7) JIS F7415 Check Valve
8) JIS F7416 Angle Check Valve
9) JIS F7417 Check Valve
10) JIS F7418 Angle Check Valve
Specification
|
Product Pressure |
5K, 10K,20K,30K |
|
Standard |
JIS |
|
Medium |
Air, gas, oil,etc. |
|
Nominal Diameter |
15-40, 50-400 |
|
Brand name |
Customer required |
|
Material |
Bronze, cast iron |
|
Application |
Shipbuilding,ship repair |
|
OEM service |
Available |
|
Certificate |
ABS, BV, CCS, LR, RINA |
IACS Certificate: BV, ABS, LR, CCS, RINA.
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