Specification :

PISTON VALVE PRODUCT’ S SIZE: PRESSURE GRADE FROM TO CLASS 150 1/ 2� 8� CLASS 300 1/ 2� 8�
DESIGN DESCRIPTION: BOLTED BONNET AND WELDING BONNET; WELDING SEAT; INTEGRAL SEATS; HANDWHEEL OPERATOR; AVAILABLE WITH GEAR OPERATOR; FLANGED ENDS OR BUTT-WELDING ENDS; RISING FLANGE OR RING TYPE JOINT.
WORKING PRESSURE AND TEMPERATURE WORKING TEMPERATURE MATERIAL CELSIUR SCALE FAHRENHEIT CARBON STEEL -290C~ 4250C 60F~ 8220F STAINLESS STEEL -400C~ 5500C 150F~ 10470F
GENERAL DESIGN SPECIFICATIONS: ITEM CLASS 150 MANUFACTURE DIN 3356 FACE TO FACE DIN 3202 F1 END FLANGE ANSI B16.5 INSPECTION AND TEST API 598
TEST PRESSURE TO API598:
CLASS SHELL ( WATER) SEAT ( WATER) SEAT ( AIR) BACK SEAT( WATER) 150 3.1MPA 450PSI 2.2MPA 315PSI 0.6MPA 80PSI 3.1MPA 450PSI 300 7.8MPA 1125PSI 5.6MPA 815PSI 0.6MPA 80PSI 7.8MPA 1125PSI
TRIMS SPECITIED DUE TO TABLE 3: DISC SEAT SURFACE PART NO.3 BODY SEAT SURFACE PART NO.2 STEM PART NO.9 SEAL RING PART NO.2( B) F6 F6 F6 PTFE OR GRAPHITE HASTELLOY B BRONZE BRONZE BRONZE CF8 R-PTFE( INSERT) S.S. OTHER MATERIALS ARE AVAILABLE UPON REQUEST.
PARTS AND MATERIAL ( ASTM) NO PARTS NAME MATERIAL 1 BODY A216WCB A352LCB A217WC1 A217WC5 A217WC6 A351CF8 A351CF8M A351CF3 A351CF3M 4 SEAT RIONG DUCTILE IRON A351CF8 A351CF8M A351CF3 A351CF3M 5 GASKET REINFORCED FLAT GRAPHITE, OR SS SPIREAL WOUND W/ GRAPHITE 6 BONNET A216WCB A352LCB A217WC1 A217WC5 A217WC6 A351CF8 A351CF8M A351CF3 A351CF3M 7 BONNET BOLT A193B7 A320L7 A193B7 A193B16 A193B16 A193B8 A193B8 A193B8 A193B8 8 BONNET BOLT NUT A1942H A1944 A1942H A1944 A1944 A1948 A1948 A1948 A1948 10 STEM NUT A439-D2 OR A276-410 11 HANDWHEEL DUCTILE IRON 12 H.W.LOCK NUT STEEL OTHER MATERIALS ARE AVAILABLE UPON REQUEST.