Wafer Check Valve_Duo Check Valve-PN10/PN16

Wafer Check Valve_Duo Check Valve-PN10/PN16

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 10 set

Supply Capability:: 100 set/month

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Packaging & Delivery

Packaging Detail:	bubble bag+ paper case+ wooden box, OR per custoers' requiremen
Delivery Detail:	7days, 15days, 30 days, according to customers' requirement

Specifications

1.wafer check valve
2. approved by CE and ISO9001
3. meet ANSI,DIN,BS,etc
4. manufacturer supply
5. OEM valve accept

wafer type ,Duo check valve

The standard of wafer type, duo check valve

1. Design standard conform to: MSS SP-67, API609, EN593
2. Connection flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,
JIS B2212/2213, BS 10 Table D, BS 10 Table E
3.Top flange conform to: ISO 5211
4.Face to face conform to: API609, ISO5752 series 20, BS5155
5.Test standard conform to: API598

The design characters of wafer type duo check valve
Check valve is used for preventing the back flow of medium in pipelines and equipments. It will open and close automatically by the pressure of medium. When the medium is back-going, valve disc will close automatically to avoid accidents.
1. Tightly sealed, without leakage under the water pressure testing.
2. Economical, light weight, compact design-significantly lighter and less expensive than comparable swing check valves.
3. Easy to install and maintain.

The perfomance of wafer type, Duo check valve
1. Nominal Diameter: DN40-DN1200
2. Nominal Pressure PN (MPa): 1.0, 1.6, 2.0, 2.5
3. Testing pressure (water) Ps (MPa)
4. Body seat: 1.5 times rated pressure
5. Seat test: 1.1 times rated pressure

FAQ

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.

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: Should the pressure gauge be mounted before or after the check valve at the back of the pump?: It should be the valve behind the exit because it can be replaced easily if damaged

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 difference between the check valve rcvx and SFCV?: One way check valve is check valve, only for preventing all kinds of pipelines or equipment on the flow medium reverse flow one-way valve.Check valves are widely used and there are many kinds of check valves. The following are common water supply and heat check valves:1, spring: the liquid from the bottom up, rely on the pressure spring controlled valve, the pressure disappears, the spring force the valve, sealing liquid backflow. Often used in the smaller diameter check valve.2, gravity: and spring similar to rely on the valve's own gravity closed to prevent backflow.

Q: Why should the check pipe be added to the chilled water pipe of the air conditioning unit?: The air conditioning unit you refer to the indoor air terminal or refrigeration unit (the air conditioning form of this with you to say you take the form of water source heat pump and board for the air conditioning unit, you said that is placed in the interior of the water ring pump unit). The air conditioning unit when you refer to the refrigeration unit, for example by pressing in the form, you will need to pump and the unit set between the check valve to prevent the pump start and stop when the air conditioning water poured into the pump, the damage of equipment; air conditioning units when you refer to (e.g. water loop heat pump indoor unit) in the room, there is no need to set the check valve, usually in the import chilled water is arranged on the electric valve two, flow switch, exhaust valve and so on can.

Q: Check valve does not automatically check back, how to adjust?: 7, when installing check valve, should pay special attention to medium flow direction, should make medium normal flow direction and the direction of the arrow on the valve body is consistent, otherwise it will cut off the normal flow of media. Valve should be installed at the bottom of the pump suction pipe.The general formula 8, lift check valve should be installed in horizontal pipe, vertical lift check valve and bottom valve is usually installed in a vertical pipe on the road, and the bottom-up flow of media.9, the check valve closes, will produce water hammer in pipeline pressure, will lead to serious damage to the valve and piping or equipment, especially for the big pipe or high pressure pipeline, it should pay attention to those who use check valve.

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?: First, the smoke control valve at the junction of the original building is installed, and this demolition does not have nothing to do with the property.The check valve on the exhaust flue has its function, but also increases the resistance of the exhaust air, and the more the number on the flue, the greater the resistance. And in use, often due to sticky oil fumes, a long time, it will be soiled. So, in the decoration will not be retained in the main flue that check valve, it should be removed, (during the renovation, in the district garbage can be seen everywhere) Only use the machine belt, because its location can be cleaned regularly.Two, according to what your text describes, it should be that the check valve on the main flue is stained. Because in addition to this small piece will cause disruption, there is no other blocking factors. It is unlikely, because the hose folded into 90 degrees into the shed, the naked eye can not see it. But you can use wire to touch it, and if you can push it open, you can try again. However, it is estimated that the shed is still of little significance.The kitchen ceiling is usually plastic buckle or aluminum pinch plate, demolition does not cost anything.It is a reminder: remove the check valve, hose in the crossing installation process should be carefully done, it is best to buy a duct flange, glass sealant with a circle, and then buckle in the flue, the hose into the flange, carefully wrapped with tape, confirmed that no leakage shall prevail this is because, in the shed, and then deal with trouble ah.If the check valve is well connected with the flue port, it is possible to remove the check plate (plate) and make it easier to use the original chassis.

Q: What are the brands of check valves?: 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.

Q: Is the tank stop valve a non-return valve or a check valve?: The check valve is not the same as the cut-off valve. The difference between them is mainly that the structure is very different.

Q: Is the check valve the same?: The same thing, the different name, the appraisal finishedPrices vary greatly, probably due to specifications, material, performance and other differencesIf you need to know more, you can call me, see the user name is my Unicom number

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