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- Technical Features
- Technical Parameters
Mani Technical Features
● 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.
Throw-Type Back Pressure Valve Type HY
Model “HY” Throw-Type Back Pressure Valve is an internal preventer. When blowout is going
to happen, the Kelly rod should be removed immediately and the back pressure valve assembly
should be put into the I.D. and then pumped downward to the required place. Thus, the
blowout can be prevented
| Model | Back pressure valve assembly | Landing sub | Connection API | Total weight kg(lb) | |||||
|---|---|---|---|---|---|---|---|---|---|
| O.D. mm(in) | I.D. mm(in) | Weight kg(lb) | O.D. mm(in) | I.D. mm(in) | Length mm(in) | Weight kg | |||
| HY41 | 41(1.61) | 12(0.47) | 5(11) | 105(4.1) | 44.5(1.75) | 595(23.4) | 40(88) | NC26 | 45(99) |
| HY46 | 53 (2.1) | 22(0.87) | 6(13) | 120(4.75) | 54(2.13) | 595(23.4) | 47(104) | NC38 | 53(117) |
| HY62 | 84(3.3) | 30(1.18) | 16(35) | 159(6.25) | 86(3.38) | 646(25.4) | 85(231) | NC50 | 101(266) |
| HY62B | 65(2.56) | 35(1.38) | 6(13) | 159(6.25) | 67(2.64) | 646(25.4) | 110(242) | NC50 | 116(255) |
| HY62C | 80(3.15) | 30(1.18) | 6(13) | 159(6.25) | 81(3.19) | 646(25.4) | 99(218) | NC46 | 105(231) |
| HY62D | 66(2.6) | 30(1.18) | 9(20) | 159(6.25) | 81(3.19) | 646(25.4) | 93(205) | NC46 | 102(225) |
| HY62E | 53(2.1) | 22(0.87) | 6(13) | 159(6.25) | 54(2.13) | 625(24.6) | 105(231) | NC46 | 111(244) |
| HY70 | 84(3.3) | 30(1.18) | 13(28.7) | 178(7) | 86(3.38) | 646(25.4) | 85(187) | NC50 | 98(216) |
Arrow Back-Pressure Valve Type JF
Model “JF” Arrow Back-Pressure Valve is a sort of pipe inside blowout preventer. It adopts
arrow valve structure. It's directly connected to drill stem, and can prevent high-pressure oil
stream from blowing out from drilling tool.
| Model | O.D. mm (in.) | I.D. mm (in.) | Length mm (in) | Connection API |
|---|---|---|---|---|
| JF86 | 86 (3 3/8) | 34 (1 5/16) | 400 (15.75) | NC26 |
| JF105 | 105 (4 1/8) | 45 (1 3/4) | 400 (15.75) | NC31 |
| JF121 | 121 (4 3/4) | 57 (2 1/4) | 500 (19.69) | NC38 |
| JF152 | 152 (6) | 74 (2 15/16) | 500 (19.69) | NC46 |
| JF162 | 162 (6 3/8) | 83 (3 1/4) | 550 (21.65) | NC50 |
| JF165 | 165(6 1/2) | 71(2.8) | 914(36) | NC50 |
| JF184 | 184 (7 1/4) | 83 (3 1/4) | 550 (21.65) | 5 1/2FH |
Double Function Arrow-shaped Back Pressure Valve Type SJF
Model “SJF” Double Function Arrow-shaped Back Pressure Valve is a integrated tool which has
functions of both the arrow-shaped back pressure valve and the mud globe valve. When used,
the tool can not only prevent down-hole kick from blowout, but also prevent the mud in the
Kelly and hose from flowing out, thus reducing mud loss and ensuring a clean of rig floor.
| Model | O.D. mm(in) | Connection thread of upper end API | Connection thread of lower end API | Max. Kick preventing Pressure MPa | Check pressure MPa | Overall length mm（in） |
|---|---|---|---|---|---|---|
| SJF89 | 89(3 1/2) | NC26 | NC26 | 50 | 0～3 | 500 |
| SJF121 | 121(4 3/4) | NC38 | NC38 | 50 | 0～3 | 474 |
| SJF159 | 159(6 1/4) | NC50 | NC50 | 50 | 0～3 | 561 |
| SJF165 | 165(6 1/2) | NC50 | NC50 | 50 | 0～3 | 642 |
| SJF178 | 178(7) | 51/2FH | NC50 | 50 | 0～3 | 561(22) |
Type FF Float Sub/Float Valve
Model “FF” Float Sub is a new-style drilling tool inside blowout prevent. During normal
drilling, valve open, drilling fluid circulation clearly while down-hole happen to kick or blowout.
The valve cap shut off in order to achieve blowout prevention. When tripping in or out, it
preventing drilling fluid flowing from back and prevent mud entering into the drill string,
realizing the function of preventing block. It is a special tool for preventing blowout and block in
drilling operation.
| Model | O.D. mm (in) | I.D. mm (in) | Upper joint thread API | Bottom joint thread API | Overall length mm (in) | Float valve wick code | Max. working pressure MPa | Working Medium |
|---|---|---|---|---|---|---|---|---|
| FF/330×330 | 121 （4 3/4） | 46 (1 13/16) | 3 1/2REG | 3 1/2REG | 282 (11 1/8) | FFX53—0 | 35～70 | Oil、natural gas、mud |
| FF/330×310 | 121 （4 3/4） | 46 (1 13/16) | NC38 | 3 1/2REG | 282 (11 1/8) | FFX53—0 | ||
| FF/430×4A10 | 159 （6 1/4） | 54 （2 1/8） | NC46 | 4 1/2REG | 364 (14 3/8) | FFX72—0 | ||
| FF/410×4A10 | 159 （6 1/4） | 70 （2 3/4） | NC46 | NC50 | 331 （12 1/4） | FFX88—0 | ||
| FF/630×630 | 210 （8 1/4） | 70 （2 3/4） | 6 5/8REG | 6 5/8REG | 428 | FFX122—0 | ||
| FF/730×630 | 241 （9 1/4） | 75 （3） | 7 5/8REG | 6 5/8REG | 434 （17） | FFX122—0 | ||
| FF/730×730 | 241 （9 1/4） | 75 （3） | 7 5/8REG | 7 5/8REG | 434 （17） | FFX122—0 |