EFV ADJUSTABLE EXCESS FLOW VALVE

EFV ADJUSTABLE EXCESS FLOW VALVE

Excess Flow Valves

ChemTec CTE

Flow enters the unit and makes a right angle to the outlet port across the nose of a magnetic piston. The piston is held in place by attraction to an adjusting screw magnet. A pressure differential is created by flow across the piston. When the differential is great enough, the piston slides to a seat at the outlet port. The flow rate at which the piston actuates can be changed externally by turning the adjusting screw, thereby changing the piston’s relationship with the flow stream.

In this auto reset model after actuation, the piston rests on a metal to metal seat which allows a controlled bleed. To reset the unit, pressure must be equalized on both sides of the piston. If the source is turned off, either upstream or downstream, the bleed will equalize the pressure and the valve will automatically reopen by magnetic repulsion from the fixed magnet located in the valve body

Features:

  • Controlled Bleed, Resets Automatically
  • Field Adjustable
  • Positive Shut-off
  • Attitude Variable Mounting
  • Function: Restricts or Shuts Off Flow
  • Output: switch contact optional
  • Materials: 316SS or Brass Body

Applications:

  • Fitting Failure
  • Regulator failure
  • Hydraulic control
  • Gas Analyzers
  • Toxic Gas and Liquid Releases





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Why choose Boiswood for your EFV ADJUSTABLE EXCESS FLOW VALVE

Fast Turnaround
Fast Turnaround
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Our local stocks allow us to quickly respond to requirements for regulators. Boiswood can evaluate and repair regulators the same day they are returned and despatch back out on a next-day delivery service.
Local Technical Support
Local Technical Support
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Boiswood offer a technical helpline from our HQ as well as having a “man on the ground” for on-site support whenever and wherever this is required.
In-House Repair Centre
In-House Repair Centre
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We can offer manufacturer certified in-house evaluation, repair, testing and assembly of GO regulators from within our Boiswood workshop.
Training Services
Training Services
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We offer a range of educational classes and training seminars that can be delivered from Boiswood HQ or on-site. We can deliver a bespoke seminar tailored for your needs.