Nominal diameter: DN250 (10")
Pressure rating: ANSI Class 1500#
Connection: RJ flanged as per ASME B16.5
Body material: A352 LCB
Trim: 13%Cr+STELLITED
Operation: automatic
Features: pressure seal cover, swing disc, low temperature cast steel body, stainless steel trim.
Applicable temperature: -196 C degree to 600 C degree
Note: please choose different materials for different working conditions.
Application: Common type: water, steam, oil, liquid gas, natural gas etc
Anti-sulphur type: gas oil etc which contains h2s, co composition.
As usual, class 150 to class 900 check valves are usually used to bolted cover, class 1500 to class 2500 check valves are usually used pressure seal cover design.
Besides the general check valves, our company also can make cryogenic check valve .
Body: A216 WCB, A352 LCB, A217 WC6, WC9, C5, C12, A351 CF8, CF8M, CF3, CF3M
Bonnet: A216 WCB, A352 LCB, A217 WC6, WC9, C5, C12, A351 CF8, CF8M, CF3, CF3M
Gasket: Spiral wound 304SS+graphite
Disc: A216 WCB+13Cr, A352 LCB+13Cr, A217 WC6+STL, WC9+STL, C5+STL, C12+STL, A351 CF8+STL, CF8M+STL, CF3+STL, CF3M+STL
Seat: A105+13Cr, A105+STL, F11+STL, F22+STL, F5+STL, F9+STL, F304+STL, F316+STL etc
Bolts and nuts: A193 Gr B7/A194 Gr 2H, A193 Gr B16/A194 Gr 4/7, A320 Gr L7/A194 Gr 4, A193 B8/A194 8, A193 B8M/A194 B8