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 Material: Forging 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

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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
Single	Flanged	1,657	1,764	1,931	2,079
Double	Studded	2,554	2,778	3,125	3,161
Double	Flanged	2,667	2,895	3,238	3,328
Triple	Studded	3.489	3,848	4,060	4,096
Triple	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