Ram BOP can complete following operation:
①when there is drill string in the well ,Seal the annular space between the well and drill pipes with fitting half-bland ram.②Seal the well with fitting bland ram when there is nothing in the well. ③When the well is closed, the manifold can be connected to its outlet on the shell to make special operating such as mud circulation or throttling and blowing out or killing etc.
Our ram blowout preventers include LWP, LWS, SL/SLX, LXT style, and type U style,being manufactured in accordance with API Specification 16A, Third Edition and NACE MR0175 per API Specification 16A, Temperature T20. They meet the applicable API and NACE requirements for H2S service.
Ram BOP Sizes and Models
Working Pressure, psi |
Bore Size (inches) |
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7-1/16 |
9 |
11 |
13-5/8 |
16-3/4 |
18-3/4 |
20-3/4 |
21-1/4 |
26-3/4 |
|
15,000 |
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10,000 |
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5,000 |
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3,000 |
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2,000 |
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LWP, LWS, SL/SLX Style Ram BOP Specifications*
Bore (inches) |
7-1/16 |
9 |
11 |
13-5/8 |
20-3/4 |
21-1/4 |
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Working Pressure (psi) |
5000 |
10000 |
3000 |
5000 |
3000 |
5000 |
10000 |
3000 |
5000 |
10000 |
3000 |
2000 |
Length (inches) |
58-1/4 |
79 |
60 |
79-1/8 |
72-5/8 |
89-1/4 |
122-3/4 |
130-1/4 |
130-1/4 |
128-3/4 |
127-1/2 |
127-1/2 |
Width (inches) |
21-1/2 |
30 |
21-1/2 |
23-1/16 |
25-15/16 |
28-3/4 |
38-9/16 |
40-3/4 |
40-3/4 |
43-1/16 |
41-1/4 |
40-7/8 |
Height (inches), Single, Stud x Stud |
15 |
22-7/8 |
11-1/8 |
14-1/2 |
14-1/2 |
19-1/2 |
23-1/2 |
17-1/4 |
17-1/4 |
28 |
23-1/8 |
23-1/8 |
Height (inches), Double, Stud x Stud |
26-3/4 |
36-5/8 |
22 |
29-1/2 |
29-3/8 |
33 |
40-7/8 |
34 |
34 |
46 |
49-1/4 |
44-7/16 |
Weight (lbs), Single, Stud x Stud |
1385 |
5550 |
1170 |
2870 |
2116 |
4150 |
11100 |
8400 |
8800 |
13200 |
7448 |
7285 |
Weight (lbs), Double, Stud x Stud |
2504 |
9900 |
2200 |
5750 |
4096 |
7725 |
20560 |
15350 |
15620 |
23400 |
14615 |
14455 |
Gallons to Open |
1.18 |
2.34 |
0.68 |
2.27 |
1.45 |
2.62 |
7.0 |
4.46 |
4.46 |
10.52 |
4.46 |
4.46 |
Gallons to Close |
1.45 |
2.72 |
0.77 |
2.58 |
1.74 |
2.98 |
9.45 |
5.44 |
5.44 |
10.58 |
5.07 |
5.07 |
Closing Ratio |
5.45:1 |
7.11:1 |
4.5:1 |
5.57:1 |
5.45:1 |
5.57:1 |
7.11:1 |
5.54:1 |
5.54:1 |
7.11:1 |
5.57:1 |
5.57:1 |
*This is only a partial listing of our ram blowout preventers. Data in this table are for reference only. |
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Type U Style Ram BOP Specifications*
Bore (inches) |
7-1/16 |
11 |
13-5/8 |
20-3/4 |
21-1/4 |
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Working Pressure (psi) |
5000 |
10000 |
3000 |
5000 |
10000 |
1500 |
3000 |
5000 |
10000 |
15000 |
3000 |
2000 |
Length (inches) |
74 |
74 |
9525 |
9625 |
96.25 |
124 |
112.13 |
112.13 |
114.13 |
139.00 |
143.69 |
143.69 |
Width (inches) |
20.25 |
20.63 |
2513 |
2513 |
25.75 |
32 |
29.25 |
29.25 |
30.25 |
39.50 |
39.52 |
39.52 |
Height (inches),Single,FlangexFlange |
27.50 |
30.56 |
2906 |
3431 |
35.69 |
44.81 |
31.31 |
33.81 |
41.69 |
53.69 |
40.56 |
37.9 |
Height (inches),Double,FlangexFlange |
44.19 |
48.63 |
4925 |
54.50 |
55.88 |
69.75 |
53.38 |
55.88 |
66.63 |
81.75 |
66.13 |
62.75 |
Weight (lbs),Single, FlangexFlange |
2800 |
3550 |
5300 |
5600 |
6400 |
10300 |
7200 |
7700 |
10300 |
23700 |
13650 |
13250 |
Weight (lbs),Double,FlangexFlange |
5200 |
6400 |
9900 |
10200 |
11300 |
18400 |
14300 |
14800 |
18400 |
43250 |
25550 |
25150 |
Locking Screw Turns(Each End) |
18 |
18 |
27 |
27 |
27 |
32 |
32 |
32 |
32 |
45 |
46 |
46 |
Gallons to Open |
1.3 |
1.3 |
3.4 |
3.4 |
3.4 |
5.7 |
5.5 |
5.5 |
5.5 |
10.4 |
8.1 |
9.0 |
Gallons to Close |
1.3 |
1.3 |
3.5 |
3.5 |
3.5 |
5.8 |
5.8 |
5.8 |
5.8 |
10.6 |
8.7 |
8.7 |
Closing Ratio |
6.9:1 |
6.9:1 |
7.3:1 |
7.3:1 |
7.3:1 |
9.8:1 |
7.0:1 |
7.0:1 |
7.0:1 |
10.6:1 |
7.0:1 |
7.0:1 |
*This is only a partial listing of our ram blowout preventers. Data in this table are for reference only. |
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