




allows snubbing service. High-grade ram rubber core and side flange sealing can meet extreme circumstances, such as high and low temperatures or acidic conditions. The housing of BOP is made of low alloy steel forgings or castings. Chemical composition, mechanical properties, and forming process conform to the requirements of standards.






Annular BOP (Type A) | ||||||||||||||
Model | Bore size in(mm) | Working pressure (Mpa/psi) | Close volume oil (L) | Open volume oil (L) | Overall dimensions | Weight | ||||||||
A | B | |||||||||||||
FHZ18-70 | 7 1/16 (179.4) | 70/10000 | 36 | 27 | 1200 | 1250 | 6293 | |||||||
FHZ28-70 | 11 (279.4) | 70/10000 | 67 | 66 | 1465 | 1653 | 12290 | |||||||
FHZ35-70 | 13 5/8 (346.1) | 70/10000 | 116 | 117 | 1554 | 1742 | 15190 | |||||||
FHZ43-35 | 16 3/4 (425.4) | 35/5000 | 134 | 134 | 1680 | 1590 | 14100 | |||||||
FHZ54-14 | 21 1/4 (539.8) | 14/2000 | 136.5 | 84.9 | 1380 | 1437 | 7660 |
Annular BOP (Type D) | ||||||||
Model | Bore size in(mm) | Working Pressure (MPa/psi) | Close volume oil (L) | Open volume oil (L) | ||||
FH18-21 | 7 1/16(179.4) | 21/3000 | 20 | 13 | ||||
FH18-35 | 35/5000 | 21 | 15 | |||||
FH23-21 | 9(228.6) | 21/3000 | 34 | 22.8 | ||||
FH23-35 | 35/5000 | 42 | 33 | |||||
FH28-21 | 11(279.4) | 21/3000 | 50 | 39 | ||||
FH28-35 | 35/5000 | 72 | 56 | |||||
FH35-35 | 13 5/8(346.1) | 35/5000 | 94 | 69 | ||||
FH43-35 | 16 3/4(425.4) | 35/5000 | 220 | 171 | ||||
FH53-21 | 20 3/4(527) | 21/3000 | 173 | 110 | ||||
FH54-35 | 21 1/4(539.8) | 35/5000 | 241 | 181 |








A: We are factory and China Top 10 line pipe manufacturer.
Q2: How about your MOQ( Minimum Order Quantity?
A: We have stock of common sizes at hand, so even few ton is accepted.
Q3: What do your factory do regarding quality control ?
A: From material to products, we inspect each process to keep good quality.
Q4: What methods of payment do you accept ?
A: After you confirm our PI (Proforma Invoice), we will request you to pay. We accept T/T, L/C.