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Factory best selling Api-7-1 Mechanical Drilling Jar - Throw-Type Back Pressure Valve Type HY – Gaofeng

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Throw-Type Back Pressure Valve Type HY   Model “HY” Throw-Type Back Pressure Valve is an internal preventer. When blowout is going to happen, the Kelly rod should be removed immediately and the back pressure valve assembly should be put into the I.D.  and then pumped downward to the required place. Thus, the blowout can be prevented. Specifications Product Code O.D  mm(in) Connection Pressure  grade  (Mpa) NFQ105 105(4 1/8) NC31 70、105 NFQ127 127(5) NC38 70、105 NFQ159 159(...


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Factory best selling Api-7-1 Mechanical Drilling Jar - Throw-Type Back Pressure Valve Type HY – Gaofeng Detail:

Throw-Type Back Pressure Valve Type HY  

Model “HY” Throw-Type Back Pressure Valve is an internal preventer. When blowout is going to happen, the Kelly rod should be removed immediately and the back pressure valve assembly should be put into the I.D.  and then pumped downward to the required place. Thus, the blowout can be prevented.

Specifications

Product Code O.D  mmin Connection Pressure  grade  Mpa
NFQ105 105(4 1/8) NC31 70105
NFQ127 127(5) NC38 70105
NFQ159 159(6 1/4) NC46 70105
NFQ168 168(6 5/8) NC50 70105
NFQ178 178(7) 5 1/2FH 70105
NFQ184 184(7 1/4) 5 1/2FH 70105

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Factory best selling Api-7-1 Mechanical Drilling Jar -
 Throw-Type Back Pressure Valve Type HY   – Gaofeng detail pictures


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Our pursuit and company goal is to "Always satisfy our customer requirements". We continue to develop and design superior quality products for both our old and new customers and achieve a win-win prospect for our clients as well as us for Factory best selling Api-7-1 Mechanical Drilling Jar - Throw-Type Back Pressure Valve Type HY – Gaofeng , The product will supply to all over the world, such as: Japan , Boston , South Korea , To let customers be more confident in us and get the most comfortable service, we run our company with honesty, sincerity and best quality . We firmly believe that it is our pleasure to help customers to run their business more successfully, and that our experienced advice and service can lead to more suitable choice for the customers.
  • The supplier abide the theory of "quality the basic, trust the first and management the advanced" so that they can ensure a reliable product quality and stable customers.
    5 Stars By Christine from Poland - 2016.06.22 12:49
    The company has a good reputation in this industry, and finally it tured out that choose them is a good choice.
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