|
This 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.
|
Type |
Dia. of Valve Assembly
mm (inch) |
Length of Valve Assembly
mm (inch) |
Sub Box |
Other Popular connections |
|
Type |
Depth of Recess
mm(inch) |
Type |
Depth of Recess
mm(inch) |
|
1R |
42.07 (1-21/32) |
149.2 (5-7/8) |
2-3/8REG |
231.8 (9-1/8) |
NC23 |
231.8 (9-1/8) |
|
2F-3R |
61.12 (1-13/32) |
165.1 (6-1/2) |
3-1/2REG |
266.7 (10-1/2) |
2-7/8IF |
260.4 (10-1/4) |
|
3-1/2F |
79.38 (3-1/8) |
254 (10) |
聽 |
聽 |
3-1/2IF |
362.0 (14-1/4) |
|
4R |
88.11 (3-15/32) |
211.4 (8-5/16) |
4-1/2REG |
325.4 (12-13/16) |
NC44 |
331.8 (13-1/6) |
|
5R |
98.43 (3-7/8) |
247.6 (9-3/4) |
5-1/2REG |
374.7 (14-3/4) |
4-1/2IF |
368.3 (14-1/2) |
|
5F-6R |
121.44 (4-25/32) |
298.4 (14-13/16) |
6-5/8REG |
431.8 (17) |
5-1/2IF |
431.8 (17) |
|
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