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Swing Internal Thread Check Valve
Product overview
Swing internal thread check valve is made of Silica Sol precision casting valve body. The structure is reasonable and the shape is beautiful. The valve seat adopts elastic sealing structure, easy to open and close, and reliable sealing. Swing type internal thread check valve is used to prevent the backflow of medium in the pipeline. Suitable media are: water, oil, steam, acid medium, etc.
Product Features
1. The screw check valve has the advantages of simple structure, small volume and light weight.
2. The flow passage is unobstructed, the fluid resistance is small, and the valve disc can be completely opened under a very small pressure difference.
3. Easy maintenance, simple structure, seal ring is generally movable, disassembly and replacement are more convenient.
Execution Standard
Design spec：ASME B16.34
Wall thickness standard：ASME B16.34
Thread standard：ASME B1.20.1、BS21、DIN 2999/259、ISO 228/1、JIS B 0203、ISO 7/1
Test & check：MSS SP-110、EN 1226
Performance Parameter
Nominal diameter：NPS1/2"～2"
Nominal Pressure：Class200Lb
Applicable media：Water, steam, oil, nitric acid, acetic acid
Applicable temperature：-40≤180℃
Main materials：ASTM A351 CF8M
