BOP Ram U Type Ram BOP FZ35-35 API Standard Shear Ram For Oilfield
Drilling
Shear Ram
Shear ram can cut pipe the well, blindly close the wellhead, and
also used as blind ram when there is no pipe in the well. The
installation of shear ram is the same with the original ram.
● In the normal condition used as blind ram, in case of emergency,
used as shear ram.
● Shear damper can be repeatedly cut pipe and not damage the blade,
The weared the blade can be reused after the repair. FORUS produces
the shear ram with shear life in more than five times, Allowed to
replace the sealing rubber.
● The ordinary ram blade is integrated with the ram body.
● The ram blade of BOP resistant to high sulfer is separated with
the ram body, which is easy to change blade after blade damaged,
and make the ram body be able to repeated use.
● The contact sealing surface between top seal of shear ram and
blade is large, which effectively reduce the pressure on the rubber
sealing surface, and prolong its life.
Variable Ram
Variable ram can be used to seal different diameter of pipe string.
Variable ram is composed of variable ram, top seal, variable front
seal. The installation of variable ram in the BOP is in the same as
the common ram, don't need to change any part of the BOP.
U represents U type ram BOP
| 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 | Recommended BOP code |
| length | width | height | single | double |
| single | double |
| 180(71/16 in)series | FZ18-352FZ18-35 | 180(71/16) | 35 | 4.6 | 4.6 | U | maximum5 1/2 | 2477(3273) | 550 | 736 | 1116 | 1870 | 3586 | C11.002 C11.00 |
| FZ18-702FZ18-70 | 180(71/16) | 70 | 4.6 | 4.6 | U | maximum5 1/2 | 2487 (3363) | 550 | 806 | 1216 | 2190 | 4095 | C20.002 C20.00 |
| FZ18-1052FZ18-105 | 180(71/16) | 105 | 4.6 | 4.6 | U | maximum5 1/2 | 2477(3273) | 550 | 832 | 1242 | 2215 | 4066 | C08.002 C08.00 |
| 280(11in)series | FZ28-352FZ28-35 | 280-11 | 35 | 10.6 | 10.8 | U | maximum8 5/8 | 3105 (4165) | 650 | 898 | 1380 | 3775 | 6915 | C06.002 C06.00 |
| FZ28-702FZ28-70 | 280-11 | 70 | 10.6 | 10.8 | U | maximum8 5/8 | 3035(4065) | 660 | 950 | 1430 | 3900 | 7115 | C09.002 C09.00 |
| FZ28-1052FZ28-105 | 280-11 | 105 | 10.9 | 11.1 | U | maximum7 5/8 | 3035(4396) | 820 | 1205 | 1840 | 6660 | 11750 | C01.002 C01.00 |
| FZ28-1402FZ28-140 | 280-11 | 140 | 30.1 | 26.6 | U | maximum6 5/8 | 3890(5104) | 1050 | 1470 | 2200 | 9525 | 16933 | C10.002 C10.00 |
| 346(135/8 in)series | FZ35-352FZ35-35 | 346(135/8) | 35 | 21 | 22 | U | maximum10 3/4 | 3647(4833) | 720 | 928 | 1501 | 5150 | 9750 | C21.002 C21.00 |
| FZ35-702FZ35-70 | 346(135/8) | 70 | 21 | 22 | U | maximum10 3/4 | 3707(4893) | 745 | 1115 | 1720 | 6020 | 10940 | C17.002 C17.00 |
| FZ35-1052FZ35-105 | 346(135/8) | 105 | 22.8 | 23.7 | U | maximum10 3/4 | 3957(5319) | 850 | 1340 | 2076 | 9310 | 16210 | C16.002 C16.00 |
| 540(211/4 in)series | FZ54-142FZ54-14 | 540(211/4) | 14 | 16.3 | 17.4 | U | maximum 16 | 4120(5800) | 1000 | 944 | 1638 | 7450 | 14420 | C25.002 C25.00 |
| 540(211/4 in)series | FZ54-352FZ54-35 | 540(211/4) | 35 | 51 | 56 | U | maximum16 | 4884(6364) | 1080 | 1300 | 2100 | 13720 | 26500 | C27.002 C27.00 |
| FZ54-702FZ54-70 | 540(211/4) | 70 | 51 | 56 | U | maximum16 | 4884(6364) | 1200 | 1742 | 2542 | 15718 | 29773 | C28.002 C28.00 |
| 680(263/4) | FZ68-212FZ68-21 | 680(263/4) | 21 | 36 | 37 | U | maximum20 | 5305(6646) | 1280 | 1214 | 1924 | 13300 | 24800 | C24.002 C24.00 |
| Note 1. BOP Testing pressure is 1.5 times of standard pressure |
| 2. Operating pressure is from 8.4Mpa to 10.5Mpa |
U Type Shear Ram Operating specification
| BOP Type | BOP model | Recommended BOP code | Cylinder Type | Specification of drill pipe |
| U | (2)FZ28-35 | (2)C06.00 | Normal cylinder | |
| (2)C06.00 | Cylinder with tandem booster | 5 1/2" 24.7lb/ft G-105 PSL-3 |
| (2)FZ28-105 | (2)C01.00 | Normal cylinder | |
| (2)C01.00 | Cylinder with tandem booster | 5 1/2" 24.7lb/ft G-105 PSL-3 |
| (2)FZ 35-35 | (2)C21.00 | Normal cylinder | 5" 19.5lb/ft G-105 PSL-3 |
| (2)C26.00 | Cylinder with tandem booster | 5 1/2" 24.7lb/ft S-135 PSL-3 |
| (2)FZ 35-70 | (2)C17.00 | Normal cylinder | 5" 19.5lb/ft G-105 PSL-3 |
| (2)C30.00 | Cylinder with tandem booster | 5 1/2" 24.7lb/ft S-135 PSL-3 |
| (2)FZ 35-105 | (2)C16.00 | Normal cylinder | 5" 19.5lb/ft G-105 PSL-3 |
| (2)C23.00 | Large cylinder | 5 1/2" 24.7lb/ft G-105 PSL-3 |
| (2)FZ 54-35 | (2)C27.00 | Normal cylinder | 6 5/8 " 27.7lb/ft S-135 PSL-3 |
U Type Variable Ram Range
| BOP Type | BOP Model | Range of Variable Ram (in) |
| U | (2)FZ 28-35 | 2 7/8"-5" |
| (2)FZ 28-70 | 2 7/8"-5" |
| (2)FZ 35-35 | 2 3/8"-3 1/2" | 2 7/8"-5" |
| (2)FZ 35-70 | 2 3/8"-3 1/2" | 2 7/8"-5" |
| (2)FZ 35-105 | 3 1/2"-5" | 4 1/2"-5 1/2" |
| (2)FZ 54-35 | 2 7/8"-5 7/8" |
