Stainless Steel Swing Check Valve

The stainless steel swing check valve produced by Shengshi Huagong is a valve that automatically opens and closes the valve disc by the flow of the medium itself to prevent the medium from flowing back. It belongs to the automatic valve category. Its connection method adopts flange connection, which has the characteristics of convenient installation, strong sealing and wide application range. The main body of the product is made of high-quality stainless steel, such as 304, 316, etc., with excellent corrosion resistance, high strength and good heat resistance, can adapt to a variety of complex working conditions, and has a long service life.

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Product Description

The valve body of our stainless steel swing check valve adopts an integral forging process, and the structure is sturdy and durable. Its thickness and strength have been strictly calculated and tested, and can withstand greater pressure and impact force; the valve disc adopts a streamlined design, which can effectively reduce the flow resistance of the medium, reduce pressure loss, and improve the flow efficiency of the medium; flange connection is one of the important structural features of the stainless steel flange check valve. It is connected to the pipeline through the flange and fixed with bolts. This connection method can provide good sealing and ensure that there will be no leakage between the valve and the pipeline under harsh working conditions such as high pressure and high temperature. At the same time, the flange connection facilitates the installation, disassembly and maintenance of the valve, which improves work efficiency.

Basic parameters

Project	Parameter content
Nominal diameter (DN)	DN15 - DN1200 (covering a variety of specifications, suitable for pipes of different diameters)
Nominal pressure (PN)	PN1.0MPa - PN16.0MPa; Class150 - Class2500 (meet different pressure working conditions)
Applicable temperature	-20℃ - 450℃ (the applicable temperature of different stainless steel materials is slightly different)
Applicable medium	Water, steam, oil, gas, acid and alkali solution, etc. (adapted according to stainless steel material and sealing material)
Valve body material	304, 304L, 316, 316L and other stainless steel (multiple materials are available to meet different corrosion resistance requirements)
Valve disc material	Stainless steel, carbide, etc. (to ensure good sealing and wear resistance)
Connection method	Flange connection (in accordance with GB, HG, ASME, ANSI and other standards)
Sealing form	Metal seal, soft seal (can be selected according to working conditions, metal seal is resistant to high temperature and high pressure, soft seal has better sealing performance)
Drive mode	Automatic (driven by medium flow)
Standard	National standards, industry standards, international standards (such as GB/T 589 - 2017, ASME B16.34, etc.)

Application scenarios

(I) Industrial field

In the petrochemical industry, stainless steel flange check valves are used to prevent chemical raw materials, oil products and other media from flowing back, ensuring the safe and stable operation of the production process; in the power industry, they are suitable for steam pipes and cooling water pipe systems to prevent steam or cooling water from flowing back and avoid damage to equipment; in the metallurgical industry, they can be used in blast furnace gas pipes, oxygen pipes, etc. to ensure the one-way flow of gas media and ensure production safety.

(II) Water supply and drainage field

In urban water supply systems, stainless steel flange check valves are used to prevent water from flowing back and prevent pipe networks from being polluted; in sewage treatment plants, they can prevent treated water from flowing back into the treatment pool to ensure the normal operation of the sewage treatment process; in building water supply and drainage systems, they are used to prevent hot water from flowing back in the hot water system to maintain the stability and safety of hot water supply.

(III) Food and medicine fields

Due to the hygienic and environmentally friendly characteristics of stainless steel, stainless steel flange check valves are widely used in food and beverage production, pharmaceutical and other industries. It can ensure that media such as food and medicine are not contaminated during production and transportation, and meet strict hygiene standards and quality requirements.

Stainless Steel Swing Check Valve