China OEM Hss Drill Bits - Arrow Check Valve – LUQI
China OEM Hss Drill Bits - Arrow Check Valve – LUQI Detail:
Arrow check valve (drilling tool check valve) is an important tool used in drilling and workover of oil and gas.It works with the drilling tool in the well. Once the reverse flow, kick or positive circulation stops in the drilling or workover process, the arrow check valve closes rapidly under the action of the spring force of the back circulation press inside the drill tool, which truncates the internal passage of the drill tool and plays the purpose of blowout prevention inside the drill tool.
Main Technical Parameters
|
Model |
OD mm(inch) |
ID mm(inch) |
MPa |
Connect thread |
|
FJ79 |
79(3 1/8) |
25(1) |
35、70、105 |
2 7/8HT PAC |
|
FJ86 |
86(3 3/8) |
25(1) |
NC26 |
|
|
FJ111 |
111(4 3/8) |
41.3(1 5/8) |
NC31 |
|
|
FJ121 |
120.7(4 3/4) |
54(2 1/8) |
NC38 |
|
|
FJ127 |
127(5) |
54(2 1/8) |
NC38 |
|
|
FJ159 |
159(6 1/4) |
70(2 3/4) |
NC46 |
|
|
FJ165 |
165(6 1/2) |
70(2 3/4) |
NC50 |
|
|
FJ178 |
178(7) |
70(2 3/4) |
5 1/2FH |
|
|
FJ203 |
203(8) |
71.4(2 13/16) |
6 5/8REG |
|
|
FJ229 |
229(9) |
76.2(3) |
7 5/8REG |
Ordering Instructions
1. Specification and dimension, connecting thread when ordering.
2. If you have any special requirements, please elaborate.
Product detail pictures:
Related Product Guide:
Design Theory of Stator and Rotor of PDM Based on Rack Gearing Principle
Our purpose is to fulfill our clients by offering golden company, great price and premium quality for China OEM Hss Drill Bits - Arrow Check Valve – LUQI , The product will supply to all over the world, such as: Australia, Belgium, New Delhi, Due to the changing trends in this field, we involve ourselves into products trade with dedicated efforts and managerial excellence. We maintain timely delivery schedules, innovative designs, quality and transparency for our customers. Our moto is to deliver quality products within stipulated time.
By Sophia from Rome - 2017.08.18 18:38
After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
By John biddlestone from Houston - 2017.06.19 13:51
