Class 900 Cast Steel Gate Valve

Class 900 Cast Steel Gate Valve

Class 900 Cast Steel Gate Valve has six unique features:(1)outside screw and yoke (os & y), rising stem; (2)bolted bonnet; (3)flexible wedge (2" solid); (4)extended bonnet for cryogenic services; (5)by pass on request; (6)locking device optional.

Besides, there are also seven specifications about this class 900 Cast steel gate valve: (1)design is asme b16.34/api 600; (2)face to face is asme b16.10; (3)end to end is asme b16.10; (4)end flange is asme b16.5/b16.47; (5)bw end is asme b16.25; (6)test is api 598; (7)special is nace mr-01-75.

And there are some detailed information about its material.(1)body is astm a216 gr.wcb ; (2)seat ring is astm a105+stellite faced ; (3)disc is  astm a216 gr.wcb+13cr faced ; (4)stem is  astm a182 gr.f6 ; (5) gasket is  soft iron + graphite ; (6)bonnet is astm a216 gr.wcb ; (7)bonnet bolt nuts is astm a194 gr.2h  ; (8) bonnet bolts  is astm a193 gr.b7 ; (9) backseat bushing is astm a276 type 410 ; (10) stem packing is  braided graphite & die formed graphite ring ; (11) eyebolt pins is  carbon steel ; (12)gland eyebolts is astm a307 gr.b ; (13) gland is  astm a276 type 410 ; (14) gland flange is  astm a216 gr.wcb  ; (15) eyebolt nuts is  astm a194 gr.2h  ; (16) grease nipple is  carbon steel ; (17)17 stem nut astm a439 gr.d-2 ; (18) retaining nut carbon steel ; (19)hand wheel  ductile iron ; (20) hand wheel nut carbon steel ; (21) screw carbon steel ; (22) yoke astm a216 gr.wcb  ; (23)23 yoke pan bolt astm a194 gr.2h ; (24) nuts yoke pan bolts astm a193 gr.b7 ; (25) bearing steel ; (26) lantern ring on request astm a276 type 410 .