Iron Check Valve DN700 Attractive and Reasonable Price
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 set
- Supply Capability:
- 6000 set/month
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Usage/Applications Of Iron Check Valve：
Check valve is to rely on the flow of the media itself and automatically open, close the valve flap, used to prevent the media back valve, also known as the check valve, Dan Xiangfa, counter flow valve, and back pressure valve.
Check valve is an automatic valve, its main role is to prevent the media back, to prevent the pump and drive motor reversal, as well as the release of the container medium.
Technical Date | Material Specification | ||
Nominal Diameter | DN40-DN1000 | Valve Body | Cast Iron or Ductile Iron |
Nominal Pressure | PN10/PN16 |
Valve Disc | Cast Iron or Ductile Iron or Stainless Steel |
Operation Temperature | -40°C~225°C | ||
Flange Driling Standard | EN 1902-2 PN10/16 | Seal Material | EPDM OR NBR |
Suface Treatment | Painting |
Valve Spring |
Stainless Steel |
Application | Portable water, water distribution service & feed lines, sewage disposol, irrigation, fire protection pipe systerm, etc. | ||
Packaging & Delivery
| Packaging Details: | Usually is standard export packing with Plywood Case and also can upon customers' requirement |
| Delivery Detail: | Upon customer's requirement |
Specifications
1.cast iron body and caps
2.blow-out proof stem
3.reduce /full bore
4.Certification:ISO9001:2008
- Q:Above the flue that valve is called smoke exhaust valve or check valve, I heard there is a five anti exhaust valve
- The names are different, and they are acceptable. Five, anti exhaust valve is unique to 10000, the first class of technical effects
- Q:Are the common check valves stand upright or horizontally installed?
- 3. install the check valve, pay attention to medium flow direction and check valve arrow direction should be consistent.
- Q:Automatic water tower water reflux, plus a check valve not supposed
- Check the direction of the installation is correct, check valve quality is good, you can install two check valve. 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:How does the check valve work?
- In order to ensure that the valve can reach the appropriate position of the seat surface at any time, the disc is designed in the hinge mechanism so that the disc has enough swing space to make the disc real and comprehensive contact with the valve seat. The disc can be made of either metal or leather, rubber, or synthetic coverage, depending on performance requirements. The swing check valve is almost completely open and the fluid pressure is almost unimpeded, so the pressure drop through the valve is relatively small. The check valve of the lift check valve is located on the valve seat sealing surface of the valve body. In addition to this valve disc is free to lift, like the rest of the cut-off valve, the fluid pressure valve from the valve seat sealing surface lift, medium return led down to the valve seat, and cut off the flow. Depending on the service conditions, the disc can be of all metal construction or in the form of a rubber pad or rubber ring on the valve frame. The same as the cut-off valve, lift check valve fluid through the channel is narrow, so the check valve by lifting the pressure drop than the swing check valve a little bigger, and swing check valve flow restrictions very little,
- Q:Check valve is 150, why not put 150 of the smoke pipe?
- DN150 check valve, it is possible that the internal path is less than the required value of 5mm-10mm. Therefore, the 150 outer diameter of the smoke pipe is not up.
- Q:Today, I saw the name of the fire check valve on the drawing of a project. Who knows what this is? I haven't met before
- When the range hood is disabled, the valve is automatically reset and closed, and the valve has high strength, easy deformation, good sealing performance, small resistance, large exhaust capacity and good performance of preventing the smoke from flowing backward. Side open fire check valve are made of metal material, after spraying and electroplating processing, beautiful appearance, spring is embedded by the mounting plate and the fastening screws do not need to install the exhaust pipe, the installation is simple and reliable, easy disassembly, easy cleaning, eliminate some problems difficult to check valves in the future maintenance of the inverse.
- Q:How can the lift vertical check valve be distinguished from the lift horizontal check valve?
- 1, vertical lift check valve should be installed on the vertical pipe. 2, lift type horizontal check valve should be installed in the horizontal pipe.Vertical lift check valve, also known as vertical check valve;Lifting horizontal valve check valve, also known as horizontal check valve.Lift check valve: check valve sliding along the vertical centerline of valve body, lift check valve can only be installed on horizontal pipe,Disc can be used in 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 by the media force open, when the media stopped flow, the valve by the self vertical landing on the seat, preventing the media from the upstream effect.Through lift check valve, the direction of inlet and outlet of medium is perpendicular to the direction of valve seat passage;Vertical lift check valve, the direction of its medium inlet and outlet passage is the same as that of valve seat passage, and its flow resistance is smaller than straight through.
- Q:Is the overcurrent valve a check valve?
- The overflow valve is just a pipe overflow pronounSuch as decompression, flow valve, butterfly valve, flow valve and so onActually, they are all called in the front wordsTherefore, can not be replaced to illustrate
- 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:Does the check valve damage affect the flow rate?
- Ball check valve will not affect the flow, such as the clip type check valve once damaged, it will affect the flow.
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