Title1
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Title7 1. VALVE
CHECK
DUAL PLATE
(SPRING RETURN):500 MM
BODY & DISC – ASTM A216 GR.WCB
SEAT – NITRILE RUBBER
SPRING – AISI 304
HING/STOP PIN - AISI 304
END CONNECTION – DOUBLE FLANGED TO ANSI B16.5 RF(150#)
MFG. STD.- API 594
INSP. & TEST STD. – API 598
ADDITIONAL REQUIREMENT – MS COMPANION FLANGE
BOLTS & NUTS & GASKETS
2. CHECK VALVE : 600 MM
TYPE - DUAL PLATE DOUBLE FLANGED
BODY - ASTM A 216 GR.WCB
DISC & SPRING - SS 304/ASTM A 351 GR. CF8
SEA T - EPDM
MFG. STD. - API 594
TEST STD. - API 598
END CONNECTION - FLANGED END ANSI B 16.5 (150#)
HYD. TEST PRESSURE - 32 KG/CM2 (BODY) & 22 KG/CM2 (SEAT)
ACCESSORIES - COMPANION FLANGE
GASKET & FASTENER.
3. CHECK VALVE TYPE
DESIGN : DUAL PLATE WAFER MOC
BODY/BONNET/COVER : CARBON STEEL MATERIAL SPEC
BODY & C OVER : ASTM A216 GRADE WCB SIZE : 200 MM END CONNECTION : FLANGED PRESSURE CLASS : 150 LB END-END/FACE-FACE DISTANCE : 127 MM MOC
SEAT : STAINLESS STEEL 304 MATERIAL SPEC
DISC : GRADE CF8M DESIGN SPECIFICATION : API 594 ANSI B16.34 MATERIAL/SPEC
SPRING : INCONEL FACE TO FAC E AND END TO END SPEC: ASME/ANSI B16.10/API 594
FIT IN BETWEEN ASME B16.5 FLANGE BY FASTENER
SHAFT MATERIAL: STAINLESS STEEL 4 10
TESTING STANDARD: API 598/EN12266 PART 1
4. CHECK VALVE TYPE
DESIGN : DUAL PLATE WAFER MOC
BODY/BONNET/COVER : CARBON STEEL MATERIAL SPEC
BODY & C OVER : ASTM A216 GRADE WCB SIZE : 150 MM END CONNECTION : FLANGED PRESSURE CLASS : 150 LB END-END/FACE-FACE DISTANCE : 98 MM MOC
SEAT : STAINLESS STEEL 304 MATERIAL SPEC
DISC : GRADE CF8M Bid Number : GEM/2025/B/6995853 Dated : 12-12-2025 Bid Document 1/14