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

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

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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:	Plywood case or buyer request
Delivery Detail:	Negotiation

Specifications

1. Size: 2"-48"
2. Pressure: 150~2500LB
3. Material: WCB,WC6, WC9, C5, C12, CF8M, CF3, CF3M, ETC.
4. STD:API6D, ASME, JIS, BS

DUAL PLATE WAFER CHECK VALVE

1	SIZE	(INCH) 1/2” 1” 2” 3” 4” 6” 8” 10” ....48” (MM) 15, 25, 50, 80, 100, 125, 150, 200, 250, ...1200
2	PRESSURE	(CLASS) 150, 300, 600, 800, 900, 1500, 2500 (MPA) 1.0, 1.6, 2.5, 4.0, 6.4, 10, 13, 15, 25, 42
3	BODY MATERIAL	A216WCB, , SS316, SS304, SS316L, CF8C, ETC CARBON STEEL, STAINLESS STEEL, DUPLEX STEEL, ALLOY, ETC
4	STANDARD	BS, ASME, API, DIN, JIS, GOST,EU, ETC
5
6	CONNECTION	RF FALNGE, RTJ FALNGE, BW, SW, NPT, THREADED, WAFER, LUG, ETC
7	MEDIUM	CORROSIVE ENVIRONMENT, OIL, GAS, WATER, ETC.
8	WARRANTY	12 MONTH

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

Features:

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.

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 difference between a throttle valve and a check valve? Are they the same?: The principle is very simple, just like upstairs said, like a revolving door, this is the swing test. There are lifting type, it is unknown.And "throttling" is to reduce the pressure of the fluid. In the pipeline, the fluid through the throttle valve, through the hand wheel or other transmission way to adjust the size of the internal channel, so that the flow of fluid flow down, to save traffic flow.

Q:What's the difference between the check valve and the stop valve?: Check valves are used to automatically stop liquid backflow,Stop valve is used in the pipeline to cut off the liquid feed, manual or motorized valve.

Q:What does the check valve "H64" and "H14" mean?: H check valve6 welding connection1 threaded connection4 swing check valveJB/T308-2004< valve type programming method >There should also be sealing surface material code and nominal pressure level

Q:What is the difference between the check valve h64h-250 and the h61y-250?: According to JB/T308-2004 "valve type programming method"One is the swing check valve (4), and the sealing surface is Cr13 (H)One is the lift check valve (1), and the sealing surface is made of Y

Q:What does the H/F/P stand for in the check valve H41H/H41F/H41P?: The first H represents the check valve, the 4 represents the flange, and the 1 represents the lift type, and the second H represents the seat seal surface. The material is alloy steel or stainless steel. The P H41P said seating for boron steel

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:What are the features of axial check valves?: Axial flow check valve (GB/T 21387-2008) by the standardization of the national valve technical committee (SAC/TC 188). The drafting unit: Shanghai Huatong Valve Co., Ltd., Ningbo aimeike copper valve valve Co. Ltd. Shanghai zhengfeng. Main drafters: Zhang Yonghui, Liu Tienan, Zheng Xuezhen, Chen Tiewang, Meng Aimin. By the national standardization valve technical committee is responsible for the interpretation.TitleAxial flow check valveAuthorState Administration of quality supervision, inspection and Quarantine of the People's Republic of China, China National Standardization AdministrationPublication dateMay 1, 2008LanguagesSimplified ChineseISBNOne hundred and fifty-five billion sixty-six million one hundred and thirty-one thousand two hundred and fiftyForeign nameAxial Flow Check ValvePressChina Standard PressThe number of pagesPage 6FolioSixteenBrandBeijing Jinsong Jian Da Science and technology books Co., Ltd.Axial check valve (GB/T 21387-2008) was published by China standard press.

Q:What's the difference between the cut-off check valve and the stop valve?: The principle difference between the check valve and the cut-off valve is that the non-return valve allows only one-way flow of liquid, allowing only one flow from one end to the other. It is a one-way valve, and the shut-off valve allows two-way flow. The biggest difference is the structure of the valve head and valve closing method is connected by the check valve is separated, the appearance of the cut-off valve import and export in a plane and the cut-off valve is a one-way valve, arrow shell stop check valve on the other.

Q:Why is the check valve necessary? Why should it be checked back?: 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.Check valve installed in the pipeline system, the main role is to prevent media backflow, check valve is a kind of pressure on the media to open and close the automatic valve. The clip type check valve applies to nominal pressure PN1.0MPa~42.0MPa and Class150~25000; nominal diameter DN15~1200mm and NPS1/2~48; work temperature -196~540 degrees of various pipelines, used to prevent medium flow back. By choosing different materials, it can be applied to many mediums such as water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and uric acid.

Q:Only one is a soft seal and one is hard sealed: Swing check valve is a check valve, the structure of the valve for the rotation of the axis of the general term, rubber valve check valve is people's usual name for H44X, only a swing check valve

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