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:To prevent water meter rotation, where should the check valve be installed?: The two check valves are already installed

Q:What's the difference between the check valve and the stop valve?: Check valve is also called check valve or one-way valve, single-phase closed, individual hydraulic control one-way valve, plug valve also has a combination of controllable changes.The cut-off valve has the possibility of variable flow, two-way action, throttling possible, there can be two-way closed applications.

Q:Is the check valve the same?: Same。 Call a difference; a thing. You come to our store to have a look.

Q:In the water supply system, water pump and water pump without check valve, a water output to another without pump water pump, effect of rotation, it will cause what kind of damage to the pump?: For the work of the pump, when stopped, the water will reverse the impact of the blade, resulting in changes in motor power, while the impact will bring air, it is easy to blade cavitation, affecting the life of the pump ah!Like you said, if the two pumps are connected in parallel, another pump reverses, and that's the same thing. Damage doubles. For a high power motor, it doesn't start several times.

Q:The difference between check valve and check valve: 1, one-way valve: is a typical seat valve, one-way valve Check, Valve, also known as check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil flow. There are two one-way valve one-way and right angle type. Straight through one-way valves are threaded and installed on the pipe line. The right angle one-way valve has threaded connections, plate connection and flange connection in three forms. Liquid control check valve, also known as blocking valve or pressure valve, which is the same as one-way valve, used to prevent reverse flow of oil. But in the hydraulic circuit needs the oil flow reverse flow, but also can use the control oil pressure, opens the one-way valve, causes the oil flow to be possible to flow in two directions. The hydraulic control check valve adopts a conical valve core, so the sealing performance is good. When the closed oil circuit is required, the valve can be used as the one-way locking of the oil circuit to maintain the pressure. Liquid control check valves control the leakage of oil, there are two types of internal and external leakage. In the oil flow reverse outlet, no back pressure in the oil pipeline can be used to vent type; otherwise, need to leak type, in order to reduce the control oil pressure2, check valve is only one kind of valve, it can be said that one-way valve is a kind of check valve,

Q:PPR check valve, butterfly valve, as well as water gauge which quota?: The valves and water meters installed in the same pipe are the same

Q:Installation position of air pipe check valve: If you are not in a hurry, leaving QQ, etc. I reply to your husband for this afternoon, he is very professional.

Q:Can the slow stop disc check valve close quickly?: At the same time, the pressure of the inlet medium into the lower part of the piston in the oil cylinder to push the piston, the small end of the upper part of the oil cylinder piston through the needle valve are respectively pressed into both sides of the valve body, the piston rod extends out of the small cylinder. When the pressure of the inlet medium drops below the outlet pressure, the medium will produce a return flow.

Q:The air pipe is equipped with a check valve: The weight of the valve or the gravity of gravity to maintain the valve in the open state of balance, the principle of the same, are heavy torque control of the door opening and closing. Inside and outside the air pressure to destroy the balance, automatic door opening and closing control. An example of simply closing a valve plate by gravity, as in a vertical check valve (Dan Liufa) in a water supply pipe.

Q:How do I install the pump outlet check valve?: Because the check valve is easy to be damaged, therefore, the check valve shall be installed near the pump outlet, and a shut-off valve (usually ball valve or gate valve) is arranged on the top of the check valve, so that it is easy to overhaul. In order to facilitate the check valve before disassembly pressure relief, the valve itself is not equipped with a net valve, should be installed between the check valve and the shut-off valve with pressure relief valve.

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