CF: Fast Commutator

Actuation accessories

The Fast Commutator (CF) is designed to be combined with two 3-way valves providing a shared pilot conduit. This accessory is designed to operate with a pilot pressure greater than 2 bar while still maintaining a perfect seal on the seats of up to 8 bar. As the pilot fluid goes to work on moving a single membrane, switching speed is maximised.

This exclusive manifold mounting system is a specially designed STI application for connecting our accessories. Fittings or nipples are not necessary as the connection is achieved using machined connection faces with a sealing ‘o’ ring. This system saves assembly time, reduces cost on other items such as fittings, inventory and the reduced dimensions save space.

• Suitable for: – Standard, offshore, sandstorm and copper-free ambient conditions. – Double acting actuators. – Low and high ambient temperature.
• Designed to work with FT positioner only or in conjunction with BV/BW boosters (see dedicated brochures).
• Optional integrated Piezo solenoid valve for fail freeze function.
• SIL certified.
• Constituted by two 3-way valves having the pilot conduit in common.
• Up to 3 units can be mounted on the same positioner to achieve multiple functions: – Quick open – Quick close – Lock in place.