Iron Check Valve DN700 Attractive and Reasonable 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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Product Description:

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

 

 

 

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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:What is the difference between the check valve and the check valve?
Check valves, Dan Xiangfa, check valves are all valves of a different name, and its role is to prevent the flow of fluid back in the pipe.
Q:Classification of check valves
Check valve (One-way valve): check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline. Pump water off the bottom valve check valve also belongs to class.The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve.
Q:If there is no check valve, there will be a reverse flow of water, what is the damage to the pump?
The main function of the check valve is to prevent water hammer, and the impact of water hammer on the drainage system is fatal.
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: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:Butterfly micro stop type check valve HH46XP-10Q, what does the letter mean?
Do not know what you say is the manufacturer of valves, in general, many models are manufacturers themselves according to the specifications of their products set.
Q:Three forest electric water heater, hot water flow is small, check valve dripping problem?
Check valve and check valve is to prevent backflow of water, the valve is used for pressure relief, when the water heater pressure is too high, the pressure through the pressure relief valve and pressure relief valve on the other: for water, the quality is not good, the main problems for the water pressure is too low to cause, and check valve and pressure relief valve will further reduce the pressure, you can try to check off a try, I think the check valve is useless. If not, just add a booster pump to the cold water inlet.
Q:The difference between the micro and slow closing check valve and the silent check valve
Micro slow closed silencing check valve hammer to drive the valve plate to open and close, silencing check valve spring pressure valve plate opening and closing, and the price of the body structure is completely different, but the function is the same, if the comparison between the two, large caliber selection micro slow closed check valve a little noise small caliber, the silencing check valve a little more.
Q:How to install the kitchen flue check valve?
1, vertical transport, the flue should take protective measures, and must be two lifting.2. Locate the center line of the flue position. In the reserved hole, draw down four vertical central lines from the roof, and draw 2 orthogonal central lines on the floor plane.3, the flue to the scene, the first flue hanging to the roof, surrounded by the center line of pop in the flue, and the flue of the reserved hole slowly down the electric hoist, from top to bottom layer installed flue in place, the center line correction. The center line of the flue and the center line of the reserved hole should be less than 1cm, the deviation of the centerline of the upper and lower flue is not greater than 1cm, and each flue must be guaranteed vertically and vertically.4, the installation of flue should each layer as bearing, bearing steel 2 root diameter over 14mm?.5. After the flue is installed, install the check valve hole at each flueFire type flue check valveFirst, stir the cement with a special glue, coat the edges of the check valve, and then install it at the opening of the check valve.6, the construction should be reserved at all levels of the hole, covered with a cover plate, to ensure safety in construction, to prevent construction waste fall into the flue.7, the flue is thin-walled components, in handling and installation should be gently handle, not to impact, not in the pipeline to pile other heavy objects and walking.8, the roof flue should be in the roof insulation layer, fire layer before construction. 9, the use of gas water heater exhaust system is strictly prohibited.

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