EN 
- Technical Features
- Technical Parameters
Main Technical Features
● Pressurized components are casted.
● Pressurized components adopts superior alloy steel with good strength and impact toughness.
● Door seal of the high pressure BOP uses combined seal, which has better seal from the well
pressure.
● Use floating or integral gate, can seal safely and change conveniently.
● Use buriel-type oil passage, Bearing hinge is separated from the hydraulic hinge.
● Hinge structure is simple, easy to dismount.
● Use big arc-type shell on both sides of the chamber, and transit by arc-type all around, to
reduce the peak stress of the shell under pressure.
● With compact structure, smaller than similar foreign products.
● The internal shell of BOP resistant to low temperature can process pipeline, to make the steam
flow inside the BOP, radiat heat.
● Manufactured in accordance with API Specification 16A, and NACE MR0175 ,H2S resistant.
| Specification& Model | Main Bore mm(in) | Working Pressure MPa(psi) | Oil quantity for opening （Single Cylinder） | Oil quantity for closing（Single Cylinder） | Ram Type | Ram Size (in) | Dimension mm | weight kg | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| length | width | height | single | double | |||||||||
| single | double | ||||||||||||
| 71/16 in series | (2)FZ18-21 | 179.4(71/16) | 21-3000 | 1.6 | 2 | H | Maximum 5 9/16 | 1420 | 645 | 568 | 854 | 855 | 1540 |
| (2)FZ18-35 | 179.4(71/16) | 35-5000 | 1.6 | 2 | H | Maximum 5 9/16 | 1420 | 645 | 624 | 910 | 895 | 1580 | |
| (2)FZ18-70 | 179.4(71/16) | 70-10000 | 2.2 | 2.5 | H | Maximum 5 9/16 | 1720 | 640 | 897 | 1262 | 1660 | 3020 | |
| (2)FZ18-105 | 179.4(71/16) | 105-15000 | 7.4 | 8 | H | Maximum 5 1/2 | 1988 | 820 | 922 | 1372 | 3175 | 5885 | |
| 9 in series | (2)FZ23-21 | 228.6-9 | 21-3000 | 1.3 | 1.5 | HF | maximum 7 | 1526 | 565 | 580 | 866 | 705 | 1250 |
| (2)FZ23-35 | 228.6-9 | 35-5000 | 4.7 | 5.3 | HF | maximum 7 | 2036 | 720 | 805 | 1190 | 1830 | 3415 | |
| (2)FZ23-70 | 228.6-9 | 70-10000 | 7 | 8 | H | maximum 7 | 2324 | 850 | 1038 | 1518 | 3635 | 6835 | |
| (2)FZ23-105 | 228.6-9 | 105-15000 | 10.2 | 10.9 | HF | maximum 7 | 2170 | 920 | 1140 | 1640 | 4150 | 7500 | |
| 11 in series | (2)FZ28-21 | 279.4-11 | 21-3000 | 2.7 | 3.2 | S | maximum 8 5/8 | 1846 | 675 | 740 | 1100 | 1400 | 2550 |
| (2)FZ28-35 | 279.4-11 | 35-5000 | 5.4 | 6.2 | S | maximum 8 5/8 | 2265 | 785 | 895 | 1325 | 2475 | 4550 | |
| (2)FZ28-70 | 279.4-11 | 70-10000 | 7 | 8 | H | maximum 8 5/8 | 2324 | 850 | 1102 | 1582 | 3770 | 6850 | |
| (2)FZ28-105 | 279.4-11 | 105-15000 | 14.6 | 16.7 | H | maximum 8 5/8 | 2650 | 1050 | 1244 | 1784 | 6303 | 11028 | |
| 13-5/8 in series | (2)FZ35-21 | 346.1(135/8) | 21-3000 | 7.8 | 8.9 | S | maximum 10 3/4 | 2414 | 760 | 774 | 1164 | 2705 | 5115 |
| (2)FZ35-35 | 346.1(135/8) | 35-5000 | 7.9 | 9.3 | S | maximum 10 3/4 | 2415 | 847 | 930 | 1370 | 3010 | 5480 | |
| (2)FZ35-70 | 346.1(135/8) | 70-10000 | 18 | 20.7 | HF | maximum 10 3/4 | 2786 | 1085 | 1276 | 1782 | 6120 | 11135 | |
| (2)FZ35-105 | 346.1(135/8) | 105-15000 | 17.4 | 20 | H | maximum 10 3/4 | 3074 | 1140 | 1420 | 1985 | 8945 | 16070 | |
| 16-3/4 in series | (2)FZ43-35 | 425.5(163/4) | 35-5000 | 10.3 | 11.6 | HF | maximum 10 3/4 | 2923 | 1190 | 1090 | 1570 | 5300 | 9860 |
| 18-3/4 in series | (2)FZ48-35 | 476.3(183/4) | 35-5000 | 24.5 | 27.9 | HF | maximum 16 | 3430 | 1440 | 1504 | 2072 | 9758 | 12286 |
| (2)FZ48-70 | 476.3(183/4) | 70-10000 | 24.5 | 27.9 | HF | maximum 16 | 3430 | 1440 | 1618 | 2186 | 10312 | 20624 | |
| 20-3/4in | (2)FZ53-21 | 527.1(203/4) | 21-3000 | 12.2 | 13.6 | HF | maximum 16 | 3424 | 1165 | 1065 | 1650 | 6130 | 13355 |
| 21-1/4 in series | (2)FZ54-14 | 539.8(211/4) | 14-2000 | 12.1 | 13.8 | HF | maximum 16 | 3300 | 1130 | 940 | 1480 | 5560 | 10200 |
| (2)FZ54-35 | 539.8(211/4) | 35-5000 | 26 | 29.6 | HF | maximum 16 | 3590 | 1445 | 1320 | 1950 | 9270 | 17670 | |
| 680(263/4in) | (2)FZ68-21 | 679.5(263/4) | 21-3000 | 32.6 | 37 | HF | maximum 18 5/8 | 4350 | 1450 | 1250 | 1870 | 12360 | 20290 |
| Note：1. BOP Testing pressure is 1.5 times of standard pressure | |||||||||||||
| 2. Operating pressure is from 8.4Mpa to 10.5Mp | |||||||||||||