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Arrow Check Valve
Arrow Check Valve

Member Details

Mudanjiang,Heilongjiang,China
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Arrow type back pressure valve is an important tool preventing of blowout. The design of the arrow type back pressure valve allows for an on-site determination of back pressure to be set at surface.

 Arrow type back pressure valve is an important tool preventing of blowout. The design of the arrow type back pressure valve allows for an on-site determination of back pressure to be set at surface.

The tool should be connected to needed drilling position in operation.Under normal drilling condition,drilling liquid pass through valve body and water channel to furnish downward.When happened well kick and blowout, underground pressure impel valve body to move upward 14° pyramidal face of valve body is fitted tightly against gasket pyramidal face,they can prevent drilling liquid within the drilling from gushing and blowout upward.

                              

Specification of Type Arrow Back Pressure Valve

 

Type

O.D(mm)

I.D (mm)

Connection

Max. Seal Pressure (Mpa)

FJ89

89

33

NC26

35       70

FJ105

105

44

NC31

35       70

FJ121

121

56

NC38

35       70

FJ159

159

70

NC46

35       70

FJ165

165

82

NC50

35       70

FJ168

168

82

NC50

35       70

FJ178

178

82

5-1/2FH

35       70

FJ203

203

82

6-5/8REG

35       70

FJ229

229

82

7-5/8REG

35       70

 

 

 

 

 

 

 

 

 

 

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