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API Swing Check Valve
Product overview
API Swing check valve are used in pipes under pressures betweenClass150～2500LB , working tempertures between -46℃~570℃,they are used in industries include oil, chemistry, pharmaceutical, fertilizer, and power generation to prevent the backward flux of the media.
Product Features
1. Reasonable product structure, reliable sealing and excellent performance;
2. Hardfacing hard alloy for sealing surface of valve disc and seat, wear resistance, high temperature resistance, corrosion resistance and long service life;
3. Unobstructed flow channel and low fluid resistance;
4. Disc stroke is short and valve closing impact is small.
Execution Standard
Design spec：API 6D、BS1868
Face to Face：ASME B16.10
Flange end：ASME B16.5
Test & check：API 598
Pressure-temp：ASME B16.34
Performance Parameter
Nominal diameter：NPS2～24
Nominal Pressure：Class150～900Lb
Applicable media：Water, steam, oil, nitric acid, acetic acid, strong oxidation medium, urea
Applicable temperature：≤600℃
Main materials：WCB、WC1、WC6
