Dual Plate Check Valve

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 100 Pieces pc

Supply Capability:: 80000 Tons Per Year pc/month

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‍Packaging & Delivery of Dual Plate Check Valve

Packaging Details: Standard Plywood Box
Delivery Detail: within 35days

Specifications of Cast Iron Check Valve Wafer Type

Certificate:CE,API,ISO9000,ISO14001,KS,GOST

Size from 2" to 48"

Face to Face:According to ISO Standard

Flange:Sccording to ANSI/BS/DIN/JIS

Nominal Pressure:PN10/PN16,125LB/150LB

Valve Body:Cast Iron

Disc:Ductile Iron,Stainless Steel,Brass,Bronze Seat:NBR,EPDM Stem:Stainless Steel

Technical Data of Cast Iron Check Valve Wafer Type

Size: DN10-DN3000

Power station valve, double-eccentric semi-ball valve, satefy valve, gate valve, check valve, no return valve, butterfly valve, etc.

Nominal Pressure: PN10/PN16 Test Pressure:1.0Mpa-50.0Mpa Sealing: PN11/PN17.6 Shell: PN15/PN24

Working Temperature: -15~ -250

Q:Exhaust hood at home, the wind back, I think it may be smoke hoods mouth check valve blocked, it cleaned it. Then, when the upper air pipe is not installed, the ventilator can work normally, but the air pipe is plugged in and is not ventilated at once. It should be the check valve at the home flue (that is, where the common air duct is attached), but this part of the pipe is inside the kitchen ceiling. Is there a way to repair or clean the check valve without removing the ceiling? If you look for professionals to come home maintenance, how much is the approximate cost?: If the flue hanging in the shed, it should be at the check out. Check valve with a machine.So I would not advocate the construction of flue hanging in the shed, net height kitchen, gas capacity is small this is big, the flue pipe exposed, there are many ways to deal with it.If the valve stuck inside, also find what professional people, find out what carpenter, solved the problem.

Q:What about boiler non-return valve without return?: There are two reasons: 1 pipe dirty, need to clean up.2 pressure difference between the two sides of the valve, see the pressure on both sides is how much?

Q:The role of the clip lift check valve: 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:What is the reason that the valve is not used for a period of time?Anonymous browsing | 314 times: 1, the valve at both ends of the road must be blocked, there is dry ventilated room. Such as long-term storage, should always check rust corrosion.2, the valve should be cleaned before installation and eliminate the defects during transportation.3, the installation must be carefully checked on the valve signs and nameplates are in line with the use of requirements.

Q:Why is the check valve necessary? Why should it be checked back?: In special equipment or systems, ordinary shut-off valves cannot be used in order to prevent backflow or intrusion of liquids or gases. A check valve must be used;For example: in order to prevent the water from the ship (ship due to its own weight, weight and pitching, rolling and flooding) / sinking in danger, Tonghai piping must use check valve to achieve the purpose of safety.

Q:Does the check valve differ in front of the water meter and press it behind the water meter?: According to the specification, check valve (check valve) should be installed behind the watch. If it is placed in front of the meter, it will cause the meter to be inaccurate and damage the meter parts.

Q:What is the function of the check valve?: 1. Check valve function: prevent backflow of medium, prevent pump and drive motor reverse, and discharge of container medium.2, check valve refers to rely on the flow of the media itself and automatically open and close the valve, used to prevent the media back of the valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve.3, check valve according to the structure of the division, can be divided into lift check valve, swing check valve and butterfly check valve three:Lift check valve is divided into two types of vertical and horizontal.Swing check valve is divided into single, double valve and multi flap type of three.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.4, check valve (Check, Valve) installation should pay attention to the following mattersA do not allow the check valve to bear weight in the line, and the large check valve shall be independently supported so as not to be affected by the pressure generated by the piping system.B, when installing, pay attention to the direction of the flow of medium should be in accordance with the direction of the body marked arrow.C and vertical vertical check valves shall be installed on the vertical pipe.D and lift type horizontal check valves shall be installed on horizontal pipes.

Q:What kind of check valve is used in the sewage pump of sewage treatment plant?: 2. installation of pump outlet check valve*Swing check valves are generally mounted on horizontal pipes: for bore DN~80mm check valves, they can also be mounted on vertical or upward sloping pipes.*Straight through lift check valves shall be installed on horizontal pipes; vertical lift check valves must be mounted on vertical pipes and medium upward flow.*As the check valve is easy to damage, therefore, should be installed near the pump outlet valve, in the upper part of the check valve with a cut-off valve (general use of ball valve or gate valve), easy to overhaul.*To facilitate the relief of the check valve before disassembly, the relief valve shall be installed between the check valve and the shut-off valve.

Q:What's the use of the 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 can the check valve be distinguished from the cut-off valve?: Stop valve has a handwheel, the general check valve by gravity or spring action, there is no operating mechanism, but the large check valve is there.

Our products are in accordance with different standards, such as API, DIN, JIS, BS, and GB, as well as non-standards. We also provide OEM products according to client requirements. Our products are widely used in oil refinery, petroleum, chemical plant, power station, natural gas, and civil industry. We have obtained ISO9001 International Quality Management System Certificate.

1. Manufacturer Overview
Location	Jiangsu,China
Year Established	2001
Annual Output Value	US$10 Million - US$50 Million
Main Markets	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe
Company Certifications	ISO9001

2. Manufacturer Certificates
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3. Manufacturer Capability
a)Trade Capacity
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Language Spoken:	English
b)Factory Information
Factory Size:
No. of Production Lines	Above 10
Contract Manufacturing	OEM Service Offered
Product Price Range	High and/or Average