MacValves Rotary Gate Valves - Weir Power & Industrial - #2

Description

The Weir Valves and Controls Rotary Gate valve is a quarter-turn gate valve, that offers significant operational, design and cost advantages over conventional Through Conduit Gate valves and Ball valves.

The Rotary Gate valve is designed to API 6A and 6D and is supplied in full bore fully pigable and reduced bore options. Originally designed as a high-tech all metal seated valve this product is also available in a lower cost, resilient, sealed version. They are suitable for landbased, topside and subsea applications.

Features

• Full and reduced bore configurations available

• Soft or metal-to-metal sealing

• Fire tested to BS6755 part 2

• Self relieving seats

• Anti blow-out stem

• Smooth, unobstructed flow passage

• Full wiping action - suitable for abrasive flow

• Anti static design

• Special designs available on request

Pressure Rating

API 6D

• Class 150 • 300 • 600 • 900 • 1500 • 2500

API 6A

• 2000 • 3000 • 5000 • 10000 C ■ ■» a*>

50mm to 200mm 2" to 8"

Other sizes available on request

Materials

Body/Trim:

Carbon Steel, Stainless Steel, Duplex, Super Duplex, Nickel Alloy, Monel, Titanium alloy

Trim:

Hardfaced Stainless Steel or other to suit application

End Connections

Operational advantages

No closed cavity above or below the pipeline flow bore, removing:

• Ingress of debris into the cavity (sedimentation), which can prevent opening and closing

• Sites for potential Hydrate formation

• Sites for potential corrosion Rotary motion - 90° input/output

• Actuation can be based on proven 'Quarter-turn' technology

• Lower risk of drawing debris across stem/shaft seals

Design advantages

• Rotary valve face to face ~ 30% of a conventional Through Conduit Gate valve

• Height (excluding linear actuator) ~ 70% of a conventional Through Conduit Gate valve

• Height (including linear actuator) ~ 40% of a conventional Through Conduit Gate valve

Cost advantages

Valve and actuator

• Rotary valve has lower manufacturing costs

• Rotary valve and actuator costs are significantly lower than a conventional Through Conduit Gate valve and Linear actuator

Supporting structure

• The reduced envelope dimensions of the Rotary Gate valve and actuator allows the use of smaller support structure

• Rotary valves and actuators can be installed back to back in less than 30% of the volume of a similar Through Conduit combination

• Lower costs for the overall project associated with the installation of the equipment

Flanged • Butt Weld • Clamp End • Specials

A list of worldwide agents is available on request

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