SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION

Kelly Valve

Kelly valve also named Kelly cock or drill pipe safety valve. It is manual control valve in drill string circulating system and it is one of the effective tools to prevent blowout. Kelly valve is divided into upper kelly valve and lower kelly valve upper kelly valve is used between swivel sub and kelly, lower kelly valve is used between lower end of kelly and upper end of drill pipe the special wrench rotate 90 0 switch can achieve on and off according to instruction. In the drilling operation, in order to avoid malignant accidents, shall be connect kelly valves on the both end of kelly to prevent loss of drilling fluid and blowout prevention.


Technical Specification of Kelly Valve

Model

OD

ID

Connection

Working Pressure

mm (inch)

mm (inch)

API

MPa (PSI)

XS86

86 (3-3/8)

30(1-3/16)

NC26 B x p

35〜105 (5,000- 15,000)

XS 105

105 (4-1/8)

40(1-37/64)

NC31Bxp

XS111

111 (4-3/8)

40 (1-37/64)

NC31Bxp

XS121

121 (4-3/4)

44.5 (1 3/4)

NC38 B x p

XS 127

127 (5)

44.5 (1 3/4)

NC38 B x p

XS 146

146 (5-3/4)

44.5 (1 3/4)

4-1/2REG LHBxp

XS 159

159 (6-1/4)

57.2 (2 1/4)

NC46 Bxp

XS168

168 (6-5/8)

71.4 (2-13/16)

NC50 Bxp

XS 178

178(7)

71.4 (2-13/16)

5-1/2FH Bxp

XS 197

197 (7-3/4)

76.2 (3)

6-5/8REGLHB x p

XS203

203 (8)

76.2 (3)

6-5/8REG LHBxp


PRODUCT
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