API Arrow type check valve
group nameDownhole Tools
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Min Order10 piece
modelAPI Arrow type check valve
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update timeMon, 08 Apr 2013 00:27:48 GMT
Paramtents
Machine Type Drilling Tool
API 7-1Arrow type check valve Arrow type check valve
Type valve
Use Well Drilling
Certification API
Material Carbon Steel
Packging & Delivery
Min Order10 piece
Briefing
2. 4 3/4"~8"
3. API 7-1
Detailed
1.API Arrow type check valve
2. 4 3/4"~8"
3. API 7-1
Arrow type check valve
4 3/4”~8”
API 7-1
Arrow type check valve, installed between drill stem and bit, is for preventing drilling fluid backflow from the bottom. The body is crossover sub in which the other parts are installed. When backflow occurring, the arrow will press to valve seat so that the fluid can not flow upwards through the valves. When arrow falls on the down seat, the circulating of drilling fluid can flow through the valve without pressure loss.
O.D. of Body | I.D. of Bore | Overall length | Box | Pin |
86 | 34 | 340 | NC26 | NC26 |
105 | 44 | 480 | NC31 | NC31 |
121 | 57 | 540 | NC38 | NC38 |
127 | 57 | 540 | NC38 | NC38 |
165 | 70 | 550 | NC50 | NC50 |
178 | 70 | 550 | NC50 | NC50 |
194 | 76 | 572 | 5 1/2FH | 5 1/2FH |
