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OUTSIDE SCREW AND YOKE;
BOLTED BONNET;
FLEXIBLE WEDGE, FULLY GUIDER;
INTEGRAL SEATS;
RISING STEM HANDWHEEL;
AVAILABLE WITH GEAR OPERATOR;
FLANGED ENDS OR BUTT-WELDING ENDS;
RISING FLANGE OR RING TYPE JOINT.
SIZE :DN20-DN600
WORKING TEMPERATURE:
CARBON STEEL :CELSIUS SCALE -29 C~425 C
FAHRENEIT (6 F~822 F)
STAINLESS STEEL : CELSIUS SCALE (-40 C~550)
FAHRENEIT (15 F~1047 F)
GENERAL DESIGN SPECIFICATIONS:
MANUFACTURE :API 6D OR API600 (BS1414)
PRESSURE-TEMPERATURE RATINGS : ANSI B16.34 (BS1560)
FACE TO FACE :ANSI B16.10 (BS2080)
END TO END :ANSI B16.10 BS 2080
END FLANGE :ANSI B16.5 BS1560
END BUTT-WELDING: ANSI B16.25 BS 1414
GASKET CONTACT: ANSI B16.5 BS 1560
INSPECTION AND TEST :API598 BS 6755 PART 1
TEST PRESSURE TO API 598 OR BS 6755 PATRT 1
CLASS300 :
SHELL (WATER) 7.8MPA 1125PSI
SHELL (AIR) 5.6MPA 815PSI
SEAT (WATER) 5.6MPA 815PSI
SEAT (AIR) 0.6MPA 80PSI
BACK SEAT (WATER) 7.8MPA 1125PSI