详细说明
FEATURES:
OS&Y, RISING STEM
PRESSURE SEAL
CONIC DISC
BACKSEAT WELD-DEPOSITED
BY PASS ON REQUEST
LOCKING DEVICE OPTIONAL
GEAR OPTIONAL
SPECIFICATIONS:
DESIGN: ASME B16.34
FACE TO FACE:: ASME B16.10
END TO END: ASME B16.10
END FLANGE: ASME B16.5
BW END: ASME B 16.25
TEST: API 598
SPECIAL: NACE MR-01-75
STANDARD MATERIALS OF PARTS