U-Shaped BOP

Our TYPE U Ram BOPs are designed and manufactured according to API Spec 16A standard and GB/T20174 and are equipped with single or double rams from 7 1/16" to 21 1/4" .

With the best quality front ram rubber, top ram rubber and flange sealing stacks, our TYPE U ram BOPs can work during the extreme working conditions such as high or low temperature and extreme chemical environments.

TYPE U SINGLE RAM BOP

 

 

TYPE U DOUBLE RAM BOP

 

 

Features

  • Forged pressure-bearing componends for better strength and impact toughness
  • Floating sealing is applied to the cylinder cover and the open/close of the cover by hydraulic power, so changing rams is quick and convenient.
  • Auxiliary oil cylinder means a smaller volume with the same functionality.
  • Ram rubber has significant storage volume, and adopts self-contained sealing.
  • Standard configuration includes a manual locking device to ensure the ram is closed tightly in the case of hydraulic pressure loss
  • Both manual and hydraulic locking device and the auxiliary oil cylinder can be installed into different positions according to your requirements, and installation positions changed easily.
  • Ram cavity can be fitted with ram assembly of same type BOP made elsewhere.

TYPE U BOP operation data and needed oil quantity
Drift diameter/pressure Oil quantity for opening the ram (L/set) Oil quantity for closing the ram (L/set) Circle number of locking shaft Closing ratio Opening ratio
7 1/16″/All pressure 4.6 4.6 18 6.9:1 2.2:1
11″/the pressure except 15000psi 10.6 11 30 7.3:1 2.5:1
11″/15000psi 21.6 21.9 31 9.8:1 2.2:1
13 5/8″/the pressure except 20 21 37 7.0:1 2.3:1
5/8″/15000psi 39.4 40.2 45 10.6:1 3.6:1
20 3/4″/3000psi 16.7 17.7 48 7.0:1 1.3:1
21 1/4″/2000psi 16.7 17.7 48 7.0:1 1.3:1
Shear ram chamber operation data and needed oil quantity
Drift diameter/pressure Oil quantity for opening the ram (L/set) Oil quantity for closing the ram (L/set) Circle number of locking shaft Closing ratio Opening ratio
7 1/16″/All pressure - - - - -
11″/the pressure except 15000psi 25.8 26.5 30 12:1 4.8:1
11″/15000psi 33.7 34.1 31 15.2:1 3.7:1
13 5/8″/the pressure except 39.8 41.3 37 10.8:1 4.5:1
13 5/8″/15000psi 60.6 61.4 45 16.2:1 6:1
20 3/4″/3000psi 54.2 56.4 48 10.4:1 4.4:1
21 1/4″/2000psi 54.2 56.4 48 10.4:1 4.4:1

The weight in the above table is based on upper and lower flange form.

TYPE U SINGLE RAM BOP

Dimension Schematic of TYPE U Single Ram BOP

Size (in.) Working pressure(psi) Vertical Path(in.) A-1 (mm) A-2 (mm) B (mm) C (mm) Weight (Kg)
7 1/16 3,000 7 1/16 1880 2780 611 515 1400
7 1/16 5,000 7 1/16 1880 2780 699 515 1500
7 1/16 10,000 7 1/16 2487 3363 1216 757 2150
7 1/16 15,000 7 1/16 2477 3273 832 768.8 2120
11 3,000 11 3105 4165 750 640 2406
11 5,000 11 3105 4165 898 648 4200
11 10,000 11 3200 4250 910 655 4300
11 15,000 11 3325 4413 1205 820 6725
13 5/8 3,000 13 5/8 3200 4356 795 743 3260
13 5/8 5,000 13 5/8 3627 4895 982 840 6540
13 5/8 10,000 13 5/8 3768 5046 1135 850 6640
13 5/8 15,000 13 5/8 3530 5460 1360 1000 10800
20 3/4 3,000 20 3/4 4120 5800 1030 1120 8100
21 1/4 3,000 21 1/4 4120 5800 940 1110 7600

The weight in the above table is based on upper and lower flange form.

Dimension Schematic of TYPE U Double Ram BOP

Size (in.) Working pressure(psi) Vertical Path(in.) A-1 (mm) A-2 (mm) B (mm) C (mm) Weight (Kg)
7 1/16 3,000 7 1/16 1880 2780 611 515 2270
7 1/16 5,000 7 1/16 1880 2780 699 515 2360
7 1/16 10,000 7 1/16 2487 3363 1216 757 4095
7 1/16 15,000 7 1/16 2477 3273 832 768.8 4066
11 3,000 11 3105 4165 750 640 4500
11 5,000 11 3105 4165 898 648 6200
11 10,000 11 3200 4250 910 655 7300
11 15,000 11 3325 4413 1205 820 11910
13 5/8 3,000 13 5/8 3200 4356 795 743 6500
13 5/8 5,000 13 5/8 3627 4895 982 840 12200
13 5/8 10,000 13 5/8 3768 5046 1135 850 12700
13 5/8 15,000 13 5/8 3530 5460 1360 1000 19600
20 3/4 3,000 20 3/4 4120 5800 1030 1120 15600
21 1/4 3,000 21 1/4 4120 5800 940 1110 14500

The weight in the above table is based on upper and lower flange form.

TYPE U BOP Explosion Drawing

 

 

No. of Part Drawing of TYPE U Ram BOP

No. Name Qty. Single Ram Qty. Double Ram 7 1/16″-15000psi 11″-5000psi 13 5/8″-5000psi
1 Ram guide rod 4 8 2C07.15 2C06.10 2C02.15
2 O-seal ring(spacer flange) 2 4 GB3452.1-1992 2C01.40 2C02.24
3 Reinforced seal ring 2 4 2C07.25 2C01.42 2C02.25
4 Tightened seal ring 2 4 2C07.26 2C01.41 2C02.26
5 Gasket 8 16 2C07.28 2C06.20 -
6 Front rod seal ring of the main piston 2 4 2C07.27 2C06.18 2C02.27
7 Gasket 2 4 2C07.18 2C06.12 2C02.18
8 Retainer ring 2 4 GB/T893.1-1986 GB/T893.1-1986 2C02.17
9 Flange sealing assembly 2 4 2C08.07.00 2C06.19.00 2C03.07
10 Gate assembly 2 4 2C07.01().00 2C06.08().00 2C02.01().00
11 Shell 1 1 C08.02A.()() C06.02A.()() C03.02A.()()
12 O-SEAL RING(nozzle flange) 2 4 GB3452.1-1992 GB3452.1-1992 GB3452.1-1992
13 Nozzle flange 2 4 2C05.09 2C05.09 2C01.25
14 Screw 8 16 GB/T70.1-2000 GB/T70.1-2000 2C01.26
15 Z1” external hexagon plug 4 8 2C01.21 2C01.21 2C01.21
16 Locking screw 2 4 2C07.09 2C06.01 2C01.11
17 Locking shaft seat 2 4 2C07.06-01 2C06.03.00 2C03.06
18 Nut 16 32 - - 2C01.14
19 Bolt 16 32 GB/T70.1-2000 GB/T70.1-2000 2C01.13
20 Cylinder cap screw 8 16 2C08.16 2C06.05 2C03.16
21 Z1” inner hexagon screw plug 4 8 2C01.34 2C01.34 2C01.34
22 Sealing plug 2 4 2C05.04 2C05.04 2C01.15
23 Sealing gland 2 4 2C05.05 2C05.05 2C01.16
24 Large hydraulic cylinder 2 4 2C08.12 2C06.04 2C03.12A
25 Z1/2” inner hexagon screw plug 8 16 2C01.36 2C01.36 2C01.36
26 Forged lifting lug bolt 2 2 GB/T 825-1988 GB/T 825-1988 ANSI/ASME B18.15
1985
27 O-SEAL RING(large hydraulic cylinder) 6 12 GB3452.1-1992 GB3452.1-1992 GB3452.1-1992
28 Gate change hydraulic cylinder 4 8 2C08.20 2C06.14 2C02.20
29 O-SEAL RING (replace hydraulic cylinder /large hydraulic
cylinder)
4 8 GB3452.1-1992 GB3452.1-1992 GB3452.1-1992
30 O-SEAL RING (replace hydraulic cylinder/spacer flange) 4 8 GB3452.1-1992 GB3452.1-1992 GB3452.1-1992
31 Gate opening piston 2 4 2C07.21 2C06.15 2C03.21
32 O-SEAL RING(switch piston/shell) 4 8 GB3452.1-1992 GB3452.1-1992 GB3452.1-1992
33 O-SEAL RING(switch piston) 4 8 GB3452.1-1992 GB3452.1-1992 GB3452.1-1992
34 Guiding ring 4 8 - 2C01.45 2C02.29
35 Cock 1-8UNC 2 4 2C01.20 2C01.20 2C01.20
36 Secondary sealing grease 2 4 EM-09-L/25mm EM-09-L/25mm EM-09-L/25mm
37 Non-return valve 2 4 2C01.07 2C01.07 2C01.07
38 Intermediate flange 2 4 2C08.13 2C06.06 2C03.13
39 Intermediate flange screw 24 48 2C08.19 2C06.13 2C03.19
40 Z1/2” inner hexagon perforated screw plug 2 4 2C01.32 2C01.32 2C01.32
41 O-SEAL RING (large hydraulic cylinder/spacer flange) 2 4 GB3452.1-1992 GB3452.1-1992 GB3452.1-1992
42 Gate closing piston 2 4 2C07.22 2C06.16 2C03.22
43 Main piston 2 4 2C08.11.00 2C06.09.01 2C03.11
44 Lip type seal ring of the main piston 2 4 2C07.08-01 2C01.08 2C03.11A
45 Wearing ring of the main piston 2 4 2C07.30 2C01.48 2C02.08
46 Tail rod seal ring of the main piston 2 4 2C07.27 2C01.49 2C02.30

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