China China wholesale Hollow Rotor Downhole Motor - Arrow Check Valve – LUQI factory and manufacturers

China wholesale Hollow Rotor Downhole Motor - Arrow Check Valve – LUQI

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China wholesale Hollow Rotor Downhole Motor - 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

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Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.

By ron gravatt from Canada - 2018.06.03 10:17

The customer service reprersentative explained very detailed, service attitude is very good, reply is very timely and comprehensive, a happy communication! We hope to have a opportunity to cooperate.

By Susan from Lyon - 2018.06.09 12:42

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