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Factory Price Oil Fishing Magnet - 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 mm(in) |
Connection |
Pressure grade (Mpa) |
NFQ105 |
105(4 1/8) |
NC31 |
70、105 |
NFQ127 |
127(5) |
NC38 |
70、105 |
NFQ159 |
159(6 1/4) |
NC46 |
70、105 |
NFQ168 |
168(6 5/8) |
NC50 |
70、105 |
NFQ178 |
178(7) |
5 1/2FH |
70、105 |
NFQ184 |
184(7 1/4) |
5 1/2FH |
70、105 |
Product detail pictures:
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Adhering into the basic principle of "quality, assistance, effectiveness and growth", we have attained trusts and praises from domestic and worldwide client for Factory Price Oil Fishing Magnet - Throw-Type Back Pressure Valve Type HY – Gaofeng , The product will supply to all over the world, such as: Greece, Hungary, Lebanon, Our company warmly invites domestic and overseas customers to come and negotiate business with us. Allow us to join hands to create a brilliant tomorrow! We've been looking forward to cooperating with you sincerely to achieve a win-win situation. We promise to try our best to deliver you with high quality and efficient services.