Drill Pipe Float Valve
- Available with a wide variety of sizes and end connections.
- Operating wrench and thread protectors included.
- Major repair kits available for every valve.
- Comes with certified test report.
- Identifiable open and close markings.
- Can be H2S corrosion resistant as per NACE MR0175.
- Technical Specification
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- Drawing
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| Model | OD
mm (inch） |
ID
mm (inch) |
Thread connection | Float valve |
| FZF83 | 82.6（3-1/4） | 31.8(1 1/4) | NC23 B×2-3/8REG B | 1R |
| FZF89 | 88.9(3-1/2) | 31.8(1 1/4) | NC26 B×2-3/8REG B | 1R |
| FZF105 | 104.8(4-1/8) | 31.8(1 1/4) | NC31 B×2-7/8REG B | 1F-2R |
| FZF121-1 | 121(4 3/4) | 50.8(2) | 3 1/2REG B×NC38 B | 2F-3R |
| FZF127 | 127(5) | 50.8(2) | 3 1/2REG B×NC38 B | 2F-3R |
| FZF121-2 | 121(4 3/4) | 50.8(2) | NC38(B×P) | 3-1/2 F |
| FZF165-1 | 165(6 1/2) | 71.4(2 13/16) | NC46(B×P) | 4F |
| FZF165-2 | 165(6 1/2) | 71.4(2 13/16) | 4 1/2REG B×NC50 B | 4R |
| FZF178 | 178(7) | 71.4(2 13/16) | 4 1/2REG B×NC50 B | 4R |
| FZF165-3 | 165(6 1/2) | 71.4(2 13/16) | NC50(B×P) | 5R |
| FZF203 | 203(8) | 71.4(2 13/16) | 6 5/8REG B×6 5/8REG B | 5F-6R |
| FZF229 | 229(9) | 76.2(3) | 7 5/8REG B×7 5/8REG B | 5F-6R |
| FZF241 | 241(9 1/2) | 76.2(3) | 7 5/8REG B×7 5/8REG B | 5F-6R |
| Valve model | Vale dia.
mm (inch） |
Valve length
mm (inch） |
Hole Dia.
mm (inch） |
Sub Box thread | |
| Thread | Hole 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) |
| 1F-2R | 48.42 (1 29/32) | 158.8 (6-1/4) | 49.21 (1 15/16) | 2 7/8REG | 25.4 (1) |
| 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) |
| 3F | 71.44 (2 13/16) | 254 (10) | 72.23 (2 27/32) | 3 1/2REG | 266.7 (10 1/2) |
| 3 1/2F | 79.4 (3 1/8) | 254 (10) | 80.2 (3 5/32) | 3 1/2REG | 266.7 (10 1/2) |
| 4R | 88.1 (3 15/32) | 211.1 (8 5/116) | 88.9 (3 1/2) | 4 1/2REG | 325.4 (12 13/16) |
| 4F | 92.87（3 21/32） | 304.8 (12) | 93.66 (3 11/16) | 4 1/2REG | 325.4 (12 13/16) |
| 5R | 98.4 (3 7/8) | 247.7 (9 3/4) | 99.2 (3 29/32) | 5 1/2REG | 374.7 (14 3/4) |
| 5F-6R | 121.4 (4 25/32) | 298.5(11 3/4) | 122.2 (4 13/16) | 6 5/8REG | 431.8 (17) |
Drill Pipe Float Valve is one of the necessary tools for oil drilling, it consists of float valve sub and float valve, The main function is to prevent drill cuttings come into mud when connecting each joint and the bit bore block caused by backflow of silt. When the well blowout or kick, the valve cover of float valve turn off the bore automatically, it will prevent well blowout accident. The working pressure of float valve is supposed to be 5000psi or 10000psi. Float valve sub has two types:
The Model F is a plunger-type float valve that provides a positive instantaneous shutoff, providing constant fluid control while drilling. This plunger-type float valve is a reliable and economical selection under standard drilling operations.
The Model G is a flapper-type float valve that, when opened, offers an unobstructed bore through the float valve. The uniquely designed flapper closes rapidly to prevent shavings from entering the drill string when circulation stops and also assists primary BOP equipment in maintaining internal pressure control. The valve will fully open when the first joint is raised from the hole, preventing pulling wet joints.
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Please send us your inquiry with detail item description or with Model number. If there is no packing demand we take it as our regular exported standard packing. We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.
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Lake Petro is located in Dongying City, which is famous for Shengli Oilfield and the largest manufacturing hub of petroleum equipment in China. Following the principle of “quality first, science and technology innovated, people oriented”, every Lake Petro person is sparing no effort to provide the customers with best products and services. Our products are based on advanced production line and testing equipment, our products are designed and manufactured according to certification of API, ISO, GOST, etc.