NEW 3/4" ROTARY GATE VALVE
January 2009
To complement Bentley’s product range of Rotary valves, a ¾ inch valve has now been introduced. This follows the field proven success of a unique quarter turn design, allowing one valve to suit multiple applications. 

Subsea production vent, injection and hydraulic isolation can be achieved using this simple, compact and lightweight valve design. In addition, they can be used in manifold combinations and other applications. 

The patented rotary valve features 100% continuous metal-to-metal sealing and a gate-to-seat self cleaning, wiping action that provides positive sealing and less wear, even with the dirtiest of fluids. The valve design and performance is enhanced by the unique rotary principle and its no-volume displacement design makes the valve essentially insensitive to water depth.

FEATURES

Bentley’s rotary valves can be supplied in numerous combinations and types of inlet/outlet, operators, interfaces and mountings.

SERVICE
Control fluids, well fluids containing H₂S/CO₂ gas, injection chemicals

OPERATING INTERFACE
• Hydraulic Operator with Manual Override.  Manual Tee bar operation or ROV interface

AVAILABLE CONNECTIONS
• Threaded
• Flanged
• Welded
• Manifold Mounted

METAL-TO-METAL SEALING
• Gate/Seat
• Seat/Body – with elastomeric environmental seal
• Stem/Body (primary) - with chevron seal set (secondary)

MULTIPLE VALVES
• Available in Mono Block, e.g. double block and bleed
or several valves as required for chemical injection manifolds

TECHNICAL SPECIFICATIONS

PRESSURE RATINGS (standard valves)
• 5,000 psi
• 10,000 psi
• 15,000 psi
• 16,500 psi

OPERATING DEPTH
• 3,000 m

PERFORMANCE VERIFICATION
• Tested to API 6A appendix F PR2

TEMPERATURE RANGE
• P-U (-20°F [-29°C] to +250°F [+121°C])

DESIGN LIFE
• 30 years

HYDRAULIC OPERATING PRESSURES
• 3,000 psi
• 5,000 psi

TYPICAL MATERIALS
• Available in API material classes FF to HH and NACE MR-0175/ISO 15156

ACCEPTABLE TORQUE (without damage)
• 300 lb.ft [405 Nm]
• Higher capacities available if required
• Manual and hydraulic with manual override versions are available
 

LB Bentley Limited
Kingfisher Business Park
London Road
Stroud
Gloucestershire
GL5 2BY
UK

T: +44 (0)1453 733060
F: +44 (0)1453 733064
E: contact@lb-bentley.com
W: www.lb-bentley.com

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