Standard or Nonstandard:
Temperature of Media:
Place of Origin:
Tianjin China (Mainland)
ANSI;DIN ;BS ;JIS;GB
Cast Iron or Ductile Iron
Cast Iron or Ductile Iron or Stainless Steel
Flange Driling Standard
EN 1902-2 PN10/16
EPDM OR NBR
Portable water, water distribution service & feed lines, sewage disposol, irrigation, fire protection pipe systerm, etc.
Nominal diameter: DN50–DN2000
Valve Design: MSS-SP81
Flange Standard: ANSI;DIN ;BS ;JIS;GB
Test Standard: MSS-SP81;API 598;
Nominal Diameter DN
Nominal Pressure PN
Cement, Paper Pulp,Sewage,Water, Oil etc.
- 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:What are the differences between different check valves applications?
- The application performance of the acoustic check valve only allows the medium to flow in one direction, and prevents flow in the direction. Usually the valve is automatically work, fluid pressure flow in one direction, the valve open; the opposite direction of fluid flow by gravity, fluid pressure and valve closing effect on the valve seat, thereby cutting off flow. Not suitable for medium containing solid particles and viscosity. The design of the check valve takes full account of the requirements of the use of the environment, and uses the inclined plate structure to achieve no vibration, no noise, stable operation, and ensure the quiet environment of the hotel and the residential environment, and has the effect of energy saving.
- Q:What is the material of H41W-16's check valve?
- According to: JB/T 308-2004 "valve type programming method"H check valve4 flange connection1 lift through straight through valve passageW sealing cover for body material16 nominal pressure PN16When the nominal pressure is less than or equal to PN16, do not mark the material code of the valve body, the valve body material is gray iron
- Q:What is the purpose of installing a check valve in the air pipe before the fan?
- Check valveRefers to rely on the flow of the media itself and automatically open and close the valve, used to prevent media backflow valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.
- Q:How can the check valve be distinguished from the cut-off valve?
- 1. check valve is called one-way valve, the role is to prevent fluid flow, can not be adjusted, can not be closed. 7, Y%, s) C, N, L., Q3, U6, J&, E9, R2., the cut-off valve can be used to regulate flow, can be closed, can be closed.
- Q:What type of check valve should be installed before the suction pump?
- Swing, turn, or automatic (note, anyway) can be.
- Q:What happens when the check valve is broken?
- Check valve is broken, there will be back water, down pressure, serious will produce pump reversal, burning motor
- Q:How do I install the pump outlet check valve?
- Because the check valve is easy to be damaged, therefore, the check valve shall be installed near the pump outlet, and a shut-off valve (usually ball valve or gate valve) is arranged on the top of the check valve, so that it is easy to overhaul. In order to facilitate the check valve before disassembly pressure relief, the valve itself is not equipped with a net valve, should be installed between the check valve and the shut-off valve with pressure relief valve.
- Q:Ball shaped sewage check valve pictures and working principle of the structure.
- 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. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.
- Q:Does the Vatti range hood e601a2z have check valves?
- The check valve is divided into three kinds: lift check valve, swing check valve and butterfly check valve:1. lift check valve is divided into two types of vertical and horizontal.2. swing check valve is divided into single, double flap and multi flap type of three.3. butterfly check valve is straight through type.The above types of check valves can be classified into thread connection, flange connection, welding connection and clamp connection in connection forms of four kinds.
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