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Product overview
National Standard Swing Check Valve. The product is designed and manufactured in strict accordance with GB12236 standard. The pin and disc are connected by built-in structure, with excellent performance and more reliable sealing. Products are widely used in petroleum, chemical, pharmaceutical, power industry and other working conditions of pipelines.
Design code
Design standard: GB/T12236
Structure length: GB/T 12221
Connection standards: GB/T 9113, JB/T 79, HG/T 20592
Pressure test: GB/T 13927, JB/T 9092
Pressure-temperature grade: GB/T12224
Product characteristics
1. The product has compact and reasonable structure, reliable sealing and excellent performance.
2. The sealing surface is made of alloy steel or cemented carbide. The sealing accessory materials are matched reasonably and the service life is long.
3. All kinds of piping flange standards and flange sealing types are adopted to meet various engineering needs and user requirements.
4. Its small size, light weight and good processing technology are one of the development directions of check valves.
