Description of product codes

Product code
RS-C Casting structure Ram BOP
RS-CS Casting structure with shear function Ram BOP
RS-F Forging structure Ram BOP
RS-FS Forging structure with shear function Ram BOP
CHINA Standard Code:
FZ Single Ram BOP
2FZ Double Ram BOP
3FZ Triple Ram BOP
Bore size |
Rated working pressure |
Bore size code |
(mm) |
(in) |
Pressure code |
(Mpa) |
(Psi) |
18 |
180 mm |
7 1/16" |
3.5 |
3.5 MPa |
500 psi |
23 |
230 mm |
9" |
7 |
7 MPa |
1,000 psi |
28 |
280 mm |
11" |
10.5 |
10.5 MPa |
1,500 psi |
35 |
350 mm |
13 5/8" |
14 |
14 MPa |
2,000 psi |
43 |
430 mm |
16 3/4" |
21 |
21 MPa |
3,000 psi |
48 |
480 mm |
18 3/4" |
35 |
35 MPa |
5,000 psi |
53 |
530 mm |
20 3/4" |
70 |
70 MPa |
10,000 psi |
54 |
540 mm |
21 1/4" |
105 |
105 MPa |
15,000 psi |
68 |
680 mm |
26 3/4" |
140 |
140 MPa |
20,000 psi |
75 |
750 mm |
29 1/2" |
|
|
|
76 |
760 mm |
30" |
|
|
|
Ram BOP series and Detailed Parameters

Model |
RS-FS 13-5/8"-5,000psi Single Ram BOP |
RS-FS 13-5/8"-5,000psi Double Ram BOP |
Part Number (P/N) |
RS11902 |
RS11903 |
Bore Size (mm/in) |
346.1/13-5/8 |
346.1/13-5/8 |
346.1/13-5/8 |
346.1/13-5/8 |
Rated Working Pressure (MPa/psi) |
35/5000 |
35/5000 |
35/5000 |
35/5000 |
Operating Champer Rated Working Pressure (MPa/psi) |
21/3000 |
21/3000 |
21/3000 |
21/3000 |
Recommended Operating Champer Working Pressure (MPa/psi) |
8.4-10.5/1200-1500 |
8.4-10.5/1200-1500 |
8.4-10.5/1200-1500 |
8.4-10.5/1200-1500 |
Oil Volume for Opening One Set of Ram Assembly (L/gal) |
41/10.83 |
41/10.83 |
41/10.83 |
41/10.83 |
Oil Volume for Closing One Set of Ram Assembly (L/gal) |
43/11.36 |
43/11.36 |
43/11.36 |
43/11.36 |
Locking Type |
Manual |
Manual |
Manual |
Manual |
Body Side Outlet (in-psi) |
4-1/16-10,000* |
4-1/16-10,000* |
4-1/16-10,000* |
4-1/16-10,000* |
Closing Ratio |
11.4:1 |
11.4:1 |
11.4:1 |
11.4:1 |
Specification of Rams Available |
Maximum Size of Pipe Ram 11-3/4" |
Top Connection |
Studded |
Flanged |
Studded |
Flanged |
Bottom Connection |
Flanged |
Flanged |
Flanged |
Flanged |
Overall Dimension |
L(mm/in) |
3588/141.26 |
3588/141.26 |
3588/141.26 |
3588/141.26 |
W (mm/in) |
1495/58.86* |
1495/58.86* |
1495/58.86* |
1495/58.86* |
H (mm/in) |
750/29.53 |
960/37.80 |
1285/50.59 |
1495/58.86 |
Approx Weight (kg/lb) |
4877/10752 |
5157/11369 |
9640/21253 |
9920/21870 |
• The bore size of BOPs can be up to φ186mm to meet requirements by the specific operation.
• All BOPs are designed and manufactured in accordance with API Spec 16A.
• BOP rated working pressure <105 Mpa ( 15000 psi), Temperature grade is T20 (-29 ~ 121*C); BOP rated working pressure ≥105 Mpa ( 15000 psi), Temperature grade is T75 (-59 ~ 121*C). Or according to contract.
• The resistance to stress corrosion by Hydrogen Sulphide at BOP positions in contact with fluid in the well meets relevant requirements as specified in NACE MR 0175.
• Any questions please contact ERUI engineers.