Copper Spring Threaded Check Valve

The copper spring threaded check valve produced by our Tanggu Shengshi Huagong is a valve that relies on the flow of the medium and the force of the spring to achieve automatic opening and closing. Its core function is to prevent the backflow of the medium and ensure the one-way and stable flow of the fluid in the pipeline system. In various fields involving fluid transportation, such as building water supply and drainage, HVAC, small industrial pipelines and other scenarios, it plays an indispensable role and is a key component to ensure the safe and stable operation of the system.

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Product Description

(I) Corrosion resistance of copper valve body and valve disc

Copper has natural corrosion resistance, especially brass and bronze, which perform well in many common media environments. In the building water supply and drainage system, the water may contain a small amount of dissolved oxygen, minerals and other substances. The copper valve body and valve disc can effectively resist the erosion of these substances and will not rust and corrode as easily as ordinary steel materials. In some industrial applications, such as pipelines that transport weak acidic or weak alkaline media, copper can also rely on its corrosion resistance to maintain the normal operation of the valve, extend the service life of the valve, and reduce the risk of leakage and failure caused by corrosion.

(II) Stability of stainless steel spring

The spring of the copper spring threaded check valve is made of stainless steel, mainly because stainless steel has good corrosion resistance and high strength. During the operation of the valve, the spring needs to frequently withstand compression and tension, and may also come into contact with various media. Stainless steel springs can maintain stable elastic properties under such complex working conditions and will not lose elasticity due to corrosion or fatigue, ensuring that they can reliably assist the valve disc to close at any time and maintain the valve's check function.

(III) Material hygiene

In industries involving drinking water, food and beverages that have extremely high hygiene requirements, the material advantages of copper spring threaded check valves are particularly prominent. Copper itself is a relatively hygienic material that is not easy to breed bacteria and microorganisms and meets relevant hygiene standards. After strict processing and treatment, copper valves can ensure that when conveying these media, they will not cause contamination to the media, ensuring the quality and safety of the product.

Technical parameters

Project	Parameter range
Nominal diameter	DN15 - DN50 (larger or smaller diameters can be customized according to special needs)
Nominal pressure	PN1.0MPa - PN1.6MPa (some special models can withstand higher pressures)
Applicable temperature	-10℃ - 120℃ (depending on the copper material and sealing material, the applicable temperature range varies)
Applicable medium	Water, hot water, cold water, drinking water, food and beverages, some chemical reagents (different corrosive media can be selected according to the material), air, etc.
Valve body material	Copper alloys such as brass and bronze
Valve disc material	Copper alloy same as valve body
Spring material	Stainless steel
Valve stem material	Stainless steel
Sealing form	Rubber seal (suitable for general media, good sealing performance), metal seal (suitable for high temperature, high pressure or special media, strong resistance to high temperature and high pressure)
Connection method	Thread (internal or external thread)
Standard	Design, manufacture and testing are carried out in accordance with relevant domestic standards such as GB, HG and some international standards such as ISO standards