Ram BOP
Ram BOP
- Available with a wide variety of sizes and end connections.
- U type ram BOPs are forging materials, which have better strength and impact toughness.
- Auxiliary oil cylinder is smaller volume than traditional type.
- Manual locking device can ensure that ram remains closed once hydraulic loss happened.
- Ram rubber use self-contained seal, and the material can be different according to environment temperature and liquid components.
- The internal part of BOP can adapt special material, which can achieve the highest levels of resistance to H2S and CO2.
| Model | Main Bore mm(in) | Working pressure MPa(psi) | Oil quantity for opening L (Single Cylinder) | Oil quantity for closing L (Single Cylinder) | Ram Type | Max.ram Size(in) | Dimension (mm) | Weight (kg) | ||||
| length | width | height | single | double | ||||||||
| single | double | |||||||||||
| (2)FZ18-21 | 179.4(7-1/16) | 21(3000) | 1.6 | 2 | H | 5-9/16 | 1420 | 645 | 568 | 854 | 855 | 1540 |
| (2)FZ18-35 | 179.4(7-1/16) | 35(5000) | 1.6 | 2 | H | 5-9/16 | 1420 | 645 | 624 | 910 | 895 | 1580 |
| (2)FZ18-70 | 179.4(7-1/16) | 70(10000) | 2.2 | 2.5 | H | 5-9/16 | 1720 | 640 | 897 | 1262 | 1660 | 3020 |
| (2)FZ18-105 | 179.4(7-1/16) | 105(15000) | 7.4 | 8 | H | 5-1/2 | 1988 | 820 | 922 | 1372 | 3175 | 5885 |
| (2)FZ23-21 | 228.6(9) | 21(3000) | 1.3 | 1.5 | HF | 7 | 1526 | 565 | 580 | 866 | 705 | 1250 |
| (2)FZ23-35 | 228.6(9) | 35(5000) | 4.7 | 5.3 | HF | 7 | 2036 | 720 | 805 | 1190 | 1830 | 3415 |
| (2)FZ23-70 | 228.6(9) | 70(10000) | 7 | 8 | H | 7 | 2324 | 850 | 1038 | 1518 | 3635 | 6835 |
| (2)FZ23-105 | 228.6(9) | 105(15000) | 10.2 | 10.9 | HF | 7 | 2170 | 920 | 1140 | 1640 | 4150 | 7500 |
| (2)FZ28-21 | 279.4(11) | 21(3000) | 2.7 | 3.2 | S | 8-5/8 | 1846 | 675 | 740 | 1100 | 1400 | 2550 |
| (2)FZ28-35 | 279.4(11) | 35(5000) | 5.4 | 6.2 | S | 8-5/8 | 2265 | 785 | 895 | 1325 | 2475 | 4550 |
| (2)FZ28-70 | 279.4(11) | 70(10000) | 7 | 8 | H | 8-5/8 | 2324 | 850 | 1102 | 1582 | 3770 | 6850 |
| (2)FZ28-105 | 279.4(11) | 105(15000) | 14.6 | 16.7 | H | 8-5/8 | 2650 | 1050 | 1244 | 1784 | 6303 | 11028 |
| (2)FZ35-21 | 346.1(13-5/8) | 21(3000) | 7.8 | 8.9 | S | 10-3/4 | 2414 | 760 | 774 | 1164 | 2705 | 5115 |
| (2)FZ35-35 | 346.1(13-5/8) | 35(5000) | 7.9 | 9.3 | S | 10-3/4 | 2415 | 847 | 930 | 1370 | 3010 | 5480 |
| (2)FZ35-70 | 346.1(13-5/8) | 70(10000) | 18 | 20.7 | HF | 10-3/4 | 2786 | 1085 | 1276 | 1782 | 6120 | 11135 |
| (2)FZ35-105 | 346.1(13-5/8) | 105(15000) | 17.4 | 20 | H | 10-3/4 | 3074 | 1140 | 1420 | 1985 | 8945 | 16070 |
| (2)FZ43-35 | 425.5(16-3/4) | 35(5000) | 10.3 | 11.6 | HF | 10-3/4 | 2923 | 1190 | 1090 | 1570 | 5300 | 9860 |
| (2)FZ48-35 | 476.3(18-3/4) | 35(5000) | 24.5 | 27.9 | HF | 16 | 3430 | 1440 | 1504 | 2072 | 9758 | 12286 |
| (2)FZ48-70 | 476.3(18-3/4) | 70(10000) | 24.5 | 27.9 | HF | 16 | 3430 | 1440 | 1618 | 2186 | 10312 | 20624 |
| (2)FZ53-21 | 527.1(20-3/4) | 21(3000) | 12.2 | 13.6 | HF | 16 | 3424 | 1165 | 1065 | 1650 | 6130 | 13355 |
| (2)FZ54-14 | 539.8(21-1/4) | 14(2000) | 12.1 | 13.8 | HF | 16 | 3300 | 1130 | 940 | 1480 | 5560 | 10200 |
| (2)FZ54-35 | 539.8(21-1/4) | 35(5000) | 26 | 29.6 | HF | 16 | 3590 | 1445 | 1320 | 1950 | 9270 | 17670 |
| (2)FZ68-21 | 679.5(26-3/4) | 21(3000) | 32.6 | 37 | HF | 18-5/8 | 4350 | 1450 | 1250 | 1870 | 12360 | 20290 |
Ram type BOPs are field proven products that are designed for a variety of operations from work-overs to high pressure, critical service operations for land drilling and subsea service. It consists of the BOP body, bonnet, hydraulic cylinder assembly, operating piston, ram change cylinder, ram opening/closing piston, locking screw, ram assembly, sealing parts etc. Top, bottom and outlet connection dimensions conform to Specification for Drilling through Equipment API Spec 16A.
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