Controles y Válvulas S.A. de C.V.

Automatización, Medición y Control

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De mariposa

The VALUE VF-81 series is a high performance butterfly valve designed to suit critical fluids that are not easy to control with general purpose butterfly valves.

Featuring a self-sealing seat ring double eccentric disc and a choice of several kinds of materials for seal rings the VF-81 valves could take over the perform of ball valve and gate valve even the fluids such as corrosive slurry and high pressure stream can be perfectly controlled.

 

Triple eccentric geometry allows long life and tight shutoff

Seat design is tilted cone configuration allowing seat to float inside disc profile, forming an elliptical cone shape on closing

360 degree line contact between seat and seal of body and disc even during wide temperature fluctuations

100% Solid metal seat and body seal withstands sever services and will not “washout”

 

Design Features

  • Valves are high performance with offset seat and double eccentric disc design.
  • Valve seat is designed for full pressure, bi-directional, bubble tight sealing.
  • Valve is equipped with upper and lower low friction bearings
  • One piece shaft design is Blowout proof and is equipped with anti-static devices
  • Patented seat retainer ring attaches without bolts allowing complete uninterrupted seal face
  • Valve has integral body stop to prevent over travel

Face to face:

  • valve body is designed to meet ISO 5752 table 5 short.

Top works:

  • 24” and bellow, valve mounting flange and stem shall be per ISO 5211.
  • 28” and above, valve mounting flange per ISO 5211, stem shall be round keyed.

Construction

The manually operated GEMU 417 2/2 way butterfly valve has an ergonomically designed handwheel with integrated locking device which prevents accidental operation.

All medium wetted parts of the butterfly valve are made of plastic.

Construction

The GEMU 410 pneumatically operated 2/2 way butterfly valve has a maintenance-free corrosion-resistant plastic piston actuator. Normally Closed and Double Acting control functions are available.

Construction

  • Low maintenance electrical actuator with a powerful, reversible dc motor
  • The rugged reduction gear in the motor, consisting of a threaded spindle with swivel lever, provides the rotation through 90°
  • Plastic housing
  • Optical position indicator
  • Manual override
  • Construction

    The GEMU 411 manually operated 2/2 way butterfly valve has an ergonomically designed corrosion-resistant handwheel with integrated locking device.

    Construction

    The GEMU 415 pneumatically operated 2/2 way butterfly valve has a low maintenance plastic piston actuator and is available with “normally closed” and “double acting” control functions.

    Construction

    The motorized GEMU 428 2/2 way butterfly valve has a low maintenance electrical actuator with a powerful reversible DC motor. The secondary gear in the motor, consisting of a threaded spindle with swivel lever, provides the rotation through 90°. GEMU 428 has an optical position indicator and a manual override.