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|
Dimensions of check valve
The producing department of Check Valve
The package of Check Valve
- Q:Does the tap water return to the water?
- Check valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent media backflow valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve.
- Q:Check valve in the water pump when the sound of vibration is very large, what is the matter?
- For the gas wall boiler heating system, the water from the water booster pump mouth must be installed on the gate for gas wall boiler heating system, water plus appropriate pressure to turn off the gas wall furnace, built in water supply valve, heating system, water flow
- Q:The difference between swing check valve and lift check valve
- Standard light valve professionals answer the difference between the lift check valve and the swing check valve:Lift check valves: check valves slide along the vertical centerline of the valve. The lift check valves can only be installed on the horizontal pipe.
- Q:Swing check valve can prevent any sewer defection
- Sure。Swing check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline.
- Q:What's the fire check valve?
- Fire check valve, suitable for installation in the kitchen of the air inlet is connected with the common flue, smoke lampblack machine, lampblack and other indoor air discharge to the roof, can prevent the flue gas in the flue flow, and when the building fire, the fire spread to the common flue, the check valve will automatically shut down, stop to fire you spread the rescue of property and escape more time for you, protect your property and life safety. The fireproof device is sensitive and reliable, and is favorable for environmental protection and improving the fire safety level of the house.
- Q:What type of check valve is the h61y-40 check valve?
- I. lift check valves: check valves that slide along the vertical centerline of the valve body. The lift check valves can only be installed on the horizontal pipe. The disc can be used in the high pressure small bore check valve. The valve body of the lift check valve is the same as the cut-off valve (which can be used with the stop valve), so it has a large coefficient of fluid resistance. The structure is similar to the cut-off valve, the valve body and the disc are the same as the cut-off valve. The lower part of the upper valve and the valve cover processing guide sleeve, the valve in the valve lift free guide simple simple light driven, when the medium downstream, the valve thrust open by the media, when the media stopped flow, the valve by the self vertical landing on the seat, preventing the media from the upstream effect. Straight through lift type check valve medium channel with import and export channel direction perpendicular to the valve seat; vertical lift check valve, the media import and export channel in the direction of the same direction with the valve seat, the flow resistance is smaller than the straight through.
- Q:What's the difference between the cut-off, check, check, and stop valves three? Better picture,
- Stop check valve: when the handwheel is rotated so that the valve stem rises, the disc does not rise together, but only the valve clack is released.
- Q:Does the regulator have a check action? If yes, can I use it as a check valve?
- There are some regulators that have this reverse cut-off. A regulator without overflow. Such as gas regulator.For example, the compressed air regulator has no reverse cut-off function.Regulators in the form of a lot of specific circumstances, specific analysis, only to exceed the body can withstand the pressure, generally not bad.
- Q:What does the H/F/P stand for in the check valve H41H/H41F/H41P?
- Respectively, the valve seat sealing surface is made of alloy / fluorine plastic / stainless steel.
- Q:With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install check valve?
- With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install a check valve, or else the water pump may enter the ring network.
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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