Stainless Steel Check Valve

Description:

The principle of the stainless steel check valve is that when the fluid medium flows in the reverse direction (that is, the valve is closed), it is automatically opened under the action of the spring, so that the medium in the pipeline flows back to the inlet end; when the fluid medium flows forward (that is, the valve is opened), automatically closed under the action of the compression spring, so that the medium in the pipeline flows to the outlet end.

The principle of the stainless steel check valve is to prevent the backflow of the medium, the second is to prevent the reverse rotation of the pump and the motor, and the third is to prevent the container medium from being released.

Stainless steel check valve is a general term for check valves made of stainless steel, also known as stainless steel nrv valve, stainless steel non return valve. There are many grades of stainless steel. The most common stainless steel check valves are 304 stainless steel check valves and 316 stainless steel check valves. In addition to 304 stainless steel check valve, there are many other materials, such as forging materials: A105, WB36, F22, F91, F92, etc.; casting materials: WCB, WB36, WCC, WC1WC6, WC9, C12A, etc.

Wafer type double flap check valve product features:

1. Small size, light weight, compact structure and easy maintenance

2. The valve plate adopts a double-connection type, which can be quickly closed by itself under the action of the spring force.

3. Due to the quick closing action, the backflow of the medium can be prevented

4. The structure of the valve body is small in length and size, and has good rigidity

5. Safe and convenient, can be installed horizontally and vertically

Stainless steel check valve classification:

1. Lift check valve: vertical and horizontal.

2. Swing check valve: three types: single-lobe, double-lobe and multi-half type

3. Butterfly check valve: straight-through

4. Diaphragm check valve: There are various structural forms, and diaphragms are used as opening and closing parts. Due to its good waterproof hammer performance, simple structure and low cost, it has developed rapidly in recent years. However, the operating temperature and pressure of the diaphragm check valve are limited by the diaphragm material.

Check valve manufacturing range:

Nominal pressure or pressure level: PN1.0-16.0MPa, ANSI CLASS 150-900, JIS10-20K

Nominal diameter or diameter: DN15～900, NPS 1/4～36

Connection method: flange, butt welding, thread, socket welding, etc.

Applicable temperature: -196℃～540℃

Body material: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8(304), CF3(304L), CF8M(316), CF3M(316L), Ti. Choose different materials, can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media.

Why choose us?

Kaifeng High-Pressure Valve Co., Ltd. is a cooperative enterprise with R&D department, production line and sales channels. With 16 years of industry experience, it is committed to providing customers with one-stop procurement services and solutions; specializing in valves, electric actuators The products have passed ISO9001 international quality management system, TS national pressure pipeline component manufacturing license, CE certificate, FM, UL and American 3A health certification standards. Products have been widely used in papermaking, medicine, food, chemical, petroleum, air conditioning, water supply and industrial automation and other fields.

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