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ABOUTChongqing Jieshi Instrument Co., Ltd. was founded in 1985 and restructured in 1995. It is located in Jieshi Industrial Park, Banan District, Chongqing. It covers an area of more than 100 acres and has more than 400 employees, including more than 60 with intermediate and senior technical titles.
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PRODUCTSThe quality and technology of the company's pressure regulating products (various pressure regulators, building pressure regulating boxes, regional pressure regulating cabinets, gate stations and long-distance pipeline pressure regulating metering skids, etc.) are in an advanced position in China.
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STRENGTHThe company passed the ISO9001, ISO14001, ISO45001 system certification, the company holds a pressure pipeline design license (industrial pipeline GC1), a pressure pipeline installation license (industrial pipeline GC2), a component combination device manufacturing license (gas pressure regulating device, factory prefabricated pipe section, flowmeter housing), a pressure pipeline valve manufacturing license (metal valve), a steel forged flange manufacturing license, a pressure vessel manufacturing license (including design qualification), a safety accessory manufacturing license (emergency shut-off valve), and a pressure vessel manufacturing (including installation, repair, modification), X-ray and ultrasonic NDT qualification personnel certificate, etc.
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SERVICEThe company has set up offices, distributors and technical after-sales service centers in 30 provinces, autonomous regions and municipalities directly under the central government, with a wide coverage of sales and service network. Our company realizes 7*24-hour after-sales service, provides technical support, holds relevant training regularly, receives user failure problems, and responds to services in a timely and quick manner.
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CONTACTThank you for visiting the official website of Jieshi Instrument. If you have cooperation intentions or suggestions, you can contact us through the following methods. We will reply as soon as possible, thank you!
JIESHI INSTRUMENT
Products
Self-Closing Valve 2
Classification:
Details
Self closing valve (check valve) is a universal valve that can prevent reverse flow. It is in the pipeline device, through the pressure of the fluid itself, in the case of unobstructed pipeline to achieve one-way flow, and in the fluid back, the valve automatically closes, play a role in preventing fluid back and prevent leakage.
Function of Self-Closing Valve
1. Control flow: In the fluid pipeline, the self-closing valve can control the flow. The self-closing valve is set in the pipeline, and the valve opening can be adjusted according to the need to control the flow rate.
2. To prevent backflow: to prevent backflow is the main function of the self-closing valve. When the direction of the pipeline changes, the fluid may flow backwards, and the self-closing valve can automatically close to prevent the fluid from flowing backwards to ensure the normal operation of the pipeline.
3. Prevent leakage: self-closing valve in the pipeline can be isolated from the direction of the fluid, for example: in the oil and gas pipeline, the self-closing valve can play a cut-off pipeline to avoid oil and gas leakage.
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