Machinery Designing & Processing
Description
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.
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Mudanjiang Dongxu Machinery Co.,Ltd
drilling tools
Address: Dongxu 2st, No5,Aimin Dis, Mudanjiang City,
Mudanjiang, Heilongjiang
China, 157011
Tel: 864536187299
Fax: 8604536290768