Petroleum Well Control Equipment Co., Ltd.(PWCE)

Type T-81 Blowout Preventer For Well Control System

Short Description:

• Application: Onshore drilling rig

• Bore Sizes: 7 1/16” — 9”

• Working Pressure: 3000 PSI  — 5000 PSI

• Ram style: single ram, double rams & triple rams

• Housing MaterialForging 4130

• Third-party witness and inspection report available: Bureau Veritas (BV), CCS, ABS, SGS, etc.

Manufactured in accordance with API 16A, Fourth Edition & NACE MR0175.

• API monogrammed and suitable for H2S service as per NACE MR-0175 standard


Product Detail

Product Tags

Feature

• Durable, forged steel body structure

• Pressure-energized Rams and hydro-mechanical locks

• Manual and hydraulic options are available

• Internal H2S resistance

-Easy operation and low maintenance

-Easy to replace ram - by opening the side plate

-Lightweight 

Description

Type 'T-81' blowout preventers are specially designed and developed for workover applications. There are two side plates fixed on the opposite of the BOP body by bolts. Ram shall be changed by opening the side plate. The 'T81' type BOP is available in either flanged or studded design. In particular, the studded top and bottom configuration is optimal on smaller rigs due to its compact design and reduced weight. Budget savings can be realized on this model due to the specially design to combine 3000PSI  and 5000PSI  on one BOP.

Specification

Dimensions—Type T-81 Ram BOP

Size, in.

Style

7-1/16"3,000 PSI

7-1/16" 5.000 PSI

9" 3.000 PSI

9" 5,000 PSI

Overal height studded (lessstuds),

Single

12.75

12.75

13

12.94

Double

21.25

21.25

21.44

21.44

Triple

29.75

29.75

29.94

29.94

Overal height flanged, in

Single

18.13

19.94

17.75

19.59

Double

26

27.79

26.28

28.09

Triple

34.51

36.19

34.78

36.59

Weights, lbs.

7-1/16"3,000 PSI

7-116" 5,000 PSI

9" 3,000 PSI

9" 5,000 Ps i

Single

Studded

1,544

1,647

1,818

1,912

Flanged

1,657

1,764

1,931

2,079

Double

Studded

2,554

2,778

3,125

3,161

Flanged

2,667

2,895

3,238

3,328

Triple

Studded

3.489

3,848

4,060

4,096

Flanged

3,602

3,965

4,173

4,263

 Type T-81 Capacities
Maximum operating pressure to open and close

1,500

1,500

1,500

1,500

Recommended operating pressure to open and close

1,500

1,500

1,500

1,500

Ratio to close

4.2:1

4.2:1

4.2:1

4.2:1

Volume of fluid to open

0.56

0.56

0.66

0.66

Volume of fluid to close

0.59

0.59

0.70

0.70


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