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API Drill Pipe Float Valve (Flapper Type Check Valve) & Float Valve Sub
1.High quality service
2.Oil Production Tools
3.Competivie price
4.API Spec. 7-1
API Drill Pipe Float Valve & Float Valve Sub
1. Descriptions:
This Drill Pipe Float Valve is normally installed in a standard bore-back of the bit sub, to provide fluid flow control at the bottom of the drill stem. It also prevents backflow of cuttings from plugging the drill bit jets while making connections.
2. Specifications:
Technical Specification:
|
Type |
Dia. of Valve Assembly mm(inch) |
Length Of Valve Assembly mm(inch) |
Dia. Of Float Recess mm(inch) |
Sub Box |
Other Popular Connections |
||
|
Connection API |
Depth Of Recess mm(inch) |
Connection API |
Depth Of Recess mm(inch) |
||||
|
1R |
42.1(1-21/32) |
149.2(5-7/8) |
42.9(1-11/16) |
2-3/8Reg. |
231.8(9-1/8) |
NC23 |
231.8(9-1/8) |
|
2F-3R |
61.1(2-13/32) |
165.1(6-1/2) |
61.9(2-7/16) |
3-1/2Reg. |
266.7(10-1/2) |
NC31 |
260.35(10-1/4) |
|
3-1/2 F |
79.4(3-1/8) |
254(10) |
80.2(3-5/32) |
NC38 |
362.0(14-1/4) |
||
|
4R |
88.1(3-15/32) |
211.1(8-5/16) |
88.9(3-1/2) |
4-1/2Reg. |
325.4(12-13/16) |
NC44 |
331.8(13-1/16) |
|
5R |
98.4(3-7/8) |
247..7(9-3/4) |
99.2(3-29/32) |
5-1/2Reg. |
374.7(14-3/4) |
NC50 |
368.3(14-1/2) |
|
5F-6R |
121.4(4-25/32) |
298.5(11-3/4) |
122.2(4-13/16) |
6-5/8Reg.. |
431(17) |
5-1/2IF |
431.8(17) |
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