Dual Plate Wafer Check Valve/Oblea de Doble Placa Valvula de Retencion

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10 set
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100 set/month

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Packaging Detail:Plywood case or buyer request
Delivery Detail:Negotiation


1. Size: 2"-48" 
2. Pressure: 150~2500LB 
3. Material: WCB,WC6, WC9, C5, C12, CF8M, CF3, CF3M, ETC. 




(INCH) 1/2”  1”  2”  3”  4”  6”  8”  10” ....48”

(MM)  15, 25, 50, 80, 100, 125, 150, 200, 250, ...1200




(CLASS) 150, 300, 600, 800, 900, 1500, 2500

(MPA)  1.0, 1.6, 2.5, 4.0, 6.4, 10, 13, 15, 25, 42




A216WCB, , SS316, SS304, SS316L, CF8C, ETC   CARBON STEEL,















1. Design & Manufacture Std.: API594, ASME B16.34,  API 6D,  JISB2074-JISB2084, BS1868 

2. Face to Face Std.:ASMEB16.10,  API 6D,  JISB2002, DIN3202, EN558

3.Test Standard: API598, API 6D JISB2003





1. Small and light, Tightly sealed. Less expensive than swing check valve.

2. Two torsion springs are used excerting on each of the pair valve plate,which close

    the plate quickly and automaticlly.

3. The quick-close action prevent the meidum from flowing back and eliminates water hammer effectly.

4. Can be installed both horizontaly and vertical on pipeline.

5. Safe and reliable in operation, high interference-resistance.



We have organized several common questions for our clients,may help you sincerely:

①How about your company?

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel,is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

②How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.


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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 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:Is the check valve behind or behind the gate valve? Why?
Thank youPlease install it in frontWhat about the front?
Q:Can the check valve be horizontally installed?
Lift check valve can be divided into straight through and vertical two. Straight through lift check valve can only be installed in horizontal pipe, vertical lift check valve is usually installed in vertical pipe.
Q:Tap water tank with vertical and horizontal check valve.
Extrusion includes seat and plate or piston designed to prevent the valve slamming. Additional material added to the seat produces two extrusion zones. Try to squeeze the fluid out of these areas and slow down the valve during rapid closing. But there is a price to pay for that. The limited gap increase region is an ideal site for collecting small solid particles. The squeeze pressure protection for controlled closure, due to the collection of solids, may cause additional problems, unless the gap is sufficiently extruded, the solids can be ejected. A narrow seal may shatter a fragile solid, such as coal. The extrusion zone tends to expand the width of the available valve seat and reduce the ability of the valve to crush solids. This effect must be considered, taking into account all the characteristics of the related solids.
Q:How much pressure is the check valve h47x-10q?
Check valve h47x-10q is 1.0MPa pressureAccording to the provisions of the JB/T 308-2004 valve type programming method:H== check valve4== connection: flange7== structure: butterfly typeX== sealing surface material: Rubber10== pressure rating: 1.0MPaQ== body material: ductile iron
Q:How to control the common flue return and smoke return?
In the hood outlet to install a reasonable design, shut tight, open the hood in place, can be easily wind blown open, will not be open to the flue suction, and the blade contact area is very small, and a sealing ring, not to hinder the blade opening exhaust flue check valve closed Miller beauty you can eliminate the smoke intrusion and poor smoke.
Q:The air pipe is equipped with a check valve
[air pipe with check valve] wind pipe with check valve, is to prevent changes in the direction of the wind generated negative pressure, the phenomenon of air intrusion.[duct] is a pipe system for air delivery and distribution.[check valve] refers to the flow itself depends on 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:Is the check valve and relief valve something?
Not the same thing!!! Installed on the water heater will not have too much money, less than 10 should be enough, but most of the water heaters are non - targets, may not be too good to match, you'd better go to a larger plumbing market
Q:When are the fire dampers and check valves located on the ventilation pipe? through ventilation, air conditioning room and important or fire danger room, partition and floor. vertical air duct with horizontal pipe section at each level of the horizontal air pipe. passes through both sides of the deformation joint.8.5.4 fire valve action temperature should be 70 degrees.

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