IBOP
- Available with a wide variety of sizes and end connections.
- Two piece body with full drift bores.
- 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
- More Details
- Drawing
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| Thread connection | O.D. mm(inch) |
I.D. mm(inch) |
OAL mm(inch) |
Working pressure
(Mpa) |
| NC26 | 88.9 (3-1/2) | 31.75 (1-1/4) | 686 (27) | 70 (35) |
| NC26 | 95 (3-3/4) | 35 (1-3/8) | 660 (26) | 70 (35) |
| NC31 | 104.8 (4-1/8) | 41.3 (1-5/8) | 711 (28) | 70 (35) |
| NC31 | 111 (4-3/8) | 35 (1-3/8) | 670 (26-3/8) | 70 (35) |
| NC38 | 120.1 (4-3/4) | 50 ( 2 ) | 462 (30) | 70 (35) |
| NC38 | 121 (4-3/4) | 45 (1-49/64) | 685 (26-31/32) | 70 (35) |
| NC46 | 158.75 (6-1/4) | 61.9 (2-7/16) | 838 (33) | 70 (35) |
| NC50 | 159 (6-1/4) | 57.2 (2-1/4) | 760 (29-59/64) | 70 (35) |
| NC50 | 165 (6-1/2) | 57.2 (2-1/4) | 760 (29-59/64) | 70 (35) |
| NC50 | 168.28 (6-5/8) | 71.4 (2-13/16) | 838 (33) | 70 (35) |
| 5 1/2FH | 177.8 ( 7 ) | 76.2 ( 3 ) | 889 (35) | 70 (35) |
| HT55 | 177.8 ( 7 ) | 57.2 (2-1/4) | 998 (38-57/64) | 70 (35) |
| 6-5/8REG | 203.2 ( 8 ) | 76.2 ( 3 ) | 965 (38) | 70 (35) |
| 6-5/8REG | 203.2 ( 8 ) | 71.4 (2-13/16) | 998 (38-57/64) | 70 (35) |
| 7-5/8REG | 241(9-1/2) | 71.4 (2-13/16) | 998 (38-57/64) | 70 (35) |
| 7-5/8REG | 241(9-1/2) | 76.2 ( 3 ) | 965 (38) | 70 (35) |
The IBOP is a non-return valve (check valve), also called Gray Valve or BVR, is a back pressure valve used in the drill string to prevent the well from flowing uncontrollably up the drill string. It is used to hold the tool open therefore it is possible to stab the valve while the fluid is flowing through the drill pipe. With the IBOP valve installed in the drill string, it allows you to strip in hole without mud flowing through the drill sting. The IBOP valve should not be used for shut the well in while tripping.
We produce H2S resistance Inside Bop Valves, which adopt high quality import sulfur-resistance material.
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Buyer’s Guide
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.
We can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us your money will be safe.
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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 ISO, GOST, etc.