Check Valves are used in pipes under pressure between Class 150~2500LB, working temperatures﹣196~600℃. They are used in industries including oil, chemistry, pharmaceutical, fertilizer, and power gene-ration to prevent the backward flux of the media.
Design Feature of Check Valve
1. The products feature a reasonable structure, reliable seal, good performance and nice modeling.
2. Either soft or hard seal can be selected for the product upon different working conditions. The sealing face is built up with Co-based carbide alloy, leaving a better wearability, corrosion and scrap resistance and a longer duration.
3. Small opening pressure, the disc can be opened fully with a very small pressure differential.
4. Inside-set bolt-bearing structure reduces leakage and reliable use.
5. Class≥1500LB, the middle cavity uses a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.
6. Different parts materials and different sizes for flange, butt-welding are available for sensible combination according to different working facts and customers' requirement
Technical Data of Check Valve
|Face to Face||DIN 3202 F6|
|Flange Drilling||EN 1092-2 PN16|
|Inspection and Test||ISO 5208|
﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.
Materials of Parts
|6||Hanger Pin||Stainless Steel|
|8||Cover Gasket||Graphite with Soft steel|
﹡For other material request,please kindly contact CNBM directly.
Dimensions of Check Valve
The producing department of Check Valve
The deatail and the package
- Q:What is the difference between the check valve h64h-250 and the h61y-250?
- According to JB/T308-2004 "valve type programming method"One is the swing check valve (4), and the sealing surface is Cr13 (H)One is the lift check valve (1), and the sealing surface is made of Y
- Q:How can the fast closing noise check valve prevent water hammer?
- Biaoguan valve that once the pump stopped, check valve spool in the spring or other auxiliary device for double end under the action of force balance in advance to the closed position, can greatly reduce the amount of water and initial water reflux falling height, water hammer force is calculated by gravity superposition, to reduce the amount of water is equal to the reduced gravity, but fell short height reduces the inertia time is relatively reduced speed, and can prevent the formation of destructive or reduce water hammer water hammer.
- Q:Can the swing check valve stand upright?
- Swing check valve, vertical mount, horizontal loading can be.Ordinary lift check valves shall not be erected. Lift check valves with springs can also be mounted.
- Q:Can the check valve be horizontally installed?
- Sure. As long as the direction of the check valve is installed, it's no problem how to install itWe can sell this, I know the user name is my phone, you go to the Advisory bar ~!
- Q:Can the slow stop disc check valve close quickly?
- At this point, the valve will automatically close under the influence of the spring and the medium return. However, as the piston rod is in an extended position, the valve can not be closed all the way, and there is about 20% of the area left to make the medium pass, so as to eliminate the water hammer. The disc is divided into two parts by the piston, which is fast, slow and slow. It can not only prevent the motor from reversing, but also eliminate the mute effect.
- Q:Classification of check valves
- This is more challengingI think these are all check valves, but the designer notes the structural features of the check valve itself to make it easy to distinguish.CHECK VALVE - ANGLE, if translated as "angle valve" must be wrong, but in the back of the check valve with an angle, will not be the valve is not an ordinary check valve, but the right angle structure of the check valve? Pure speculation. Right angle check valve.CHECK VALVE - ANGLE STOP ibid., the check valve of the right angle structure, mainly acts as a cut-off. Right angle stop valve.CHECK VALVE - ANTI WHIP physics, there is a professional interpretation, (anti whip device) pipe anti swing device, I guess there should be the meaning of anti shock, it is also one of the role of one-way valve. Here I translated as anti shock valve.The CHECK VALVE - STOP is different from the ANGLE STOP, and the ordinary structure is interpreted as a stop valve here.CHECK VALVE check valveCHECK VALVE - TILTING DISK tilting disc valve, this should be indicated on the special check valve structure, inside the JBT308, check valve structure with the valve structure, this should be inside the swing valve a.CHECK VALVE - WAFER flat plate check valve.The CHECK VALVE - Y STOP Y check valve is also a structural form. This does not understand, it translates into Y stop valve.
- Q:How much is the check valve for the concrete pump?
- 31 concrete pump price ranging from 15W to 60W, different configurations have different prices, which one do you want?
- Q:Install check valve is not afraid of water, in case the back of the water pollution?
- The check valve is to prevent the backflow of water from the pipe after the pump stops. If the pipe is very large and the water is flowing back every time, isn't it a waste?If the water tank or tank pipe at the bottom of the pool, it must check valve, or a box of water will drain off, if the line is not big, the water inflow of the water is from the top of the box, it can also be installed check valve. Is not loaded with pipeline and process!
- Q:What's the fire check valve?
- The valve of the product is opened, and the direction of opening and opening of the side open type fireproof check valve is consistent with the exhaust direction in the exhaust pipe of the smoke exhauster, and the exhaust is smooth.
- Q:Check valve note BC/PISTON: SPR-L what does that mean?
- BC==Bolted Cover/ bolted bonnetPISTON== lifting typeSPR-L==Spring-loaded/ is loaded with springsTogether, it is: a spring-loaded check valve. Bolted bonnet (this is common)
We are one of the largest enterprises in China, integrating research, development, production, marketing and commercial services of stationery.And it became the largest manufacture of the writing instruments in Asia, with the scale of production ranked the first in the consecutive 12 years in China, and the sales ranked the third in the global industy, and the strength ranked within the eighth.
1. Manufacturer Overview
|Annual Output Value
||Above US$100 Million
||Africa, Asia, America, Europe, Middle East, West Europe
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
||41% - 50%
|No.of Employees in Trade Department
||42000 square meters
|No. of Production Lines
||OEM Service Offered；Design Service Offered
|Product Price Range