SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION
  • Full Opening Safety Valve

Full Opening Safety Valve

Full opening safety valve is manual control valve in drill string circulating system and it is one of the effective tools to prevent blowout in the drilling operation, In order to avoid malignant accidents full opening safety valve shall be connected between drill pipes in drilling operation. The special wrench of full opening safety valve rotates 90 0 switch can be achieved on and off. And when need to lift drill pipes or kelly has not be lifted as a precaution, it is better to install fully opening safety valve.


Technical Specification of Full Opening Safety Valve

Model

OD

ID

Connection

Working Pressure

mm (inch)

mm (inch)

API

MPa (PSI)

QK79

79.4 (3-1/8)

20 (51/64)

2-7/8 HT PAC


QK89

89 (3-1/2)

30(1-3/16)

NC26


QK111

111 (4-3/8)

40 (1-37/64)

NC31


QK121

121 (4-3/4)

50.8 (2)

NC38


QK127

127 (5)

50.8 (2)

NC38

35 〜105

(5,000 〜15,000)

QK133

133.4(5-1/4)

50.8 (2)

NC40

QK159

159 (6-1/4)

71.4(2-13/16)

NC46

QK165

165 (6-1/2)

71.4(2-13/16)

NC50


QK168

168 (6 5/8)

71.4(2-13/16)

NC50


QK190

190 (7-1/2)

76.2 (3)

5-1/2FH


QK235

235 (9-1/4)

108 (4-1/4)

XT54



PRODUCT
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