Specifications
Flapper Type Check ValveBe installed in standard bore-back of the bit sub
Provide fluid flow control
Flapper Type Check Valve
Product Explanation: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.
Product types and specifications:
Type | Dia. of Valve Assembly | Length Of Valve Assembly | Dia. Of Float Recess | Sub Box | Other Popular Connections | ||
Connection | Depth Of Recess | Connection | Depth Of Recess | ||||
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) |
