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LYCO® Excess Flow Valves

LYCO® Excess Flow Valves: Because Safety is Your Number One Priority

When it comes to the transmission and distribution of natural gas, safety is always the number one priority. Part of any comprehensive gas distribution safety regimen is the inclusion of high quality, dependable LYCO® Excess Flow Valves (EFVs). LYCO® EFVs are the first responders in the event of a damaged gas line. Patent-protected LYCO® EFV technology shuts down the line’s flow and keeps it closed until the line is repaired and gas pressure returns to normal.

Calculate The Size You Need

Lyall’s customizable EFVs are suitable for nearly any configuration. Get the right size for your specific application by using the LYCO® EFV sizing calculator.

EFV_Calculator.xlsm

Click Here to View the Lyall EFV Calculator How To Webinar

 

        Download the Brochure                                                    Download Installation Notice

      2014 EFV Brochure Image.jpg                                                          2014 Excess Flow Valve Installation Notice Image.jpg

 

 

Available in Three Different Designs:

LYCO® EFV I

Designed primarily for ¾” IPS and 1” IPS applications.

Configuration Options:

  • Medium or high density PE pipe
  • Extended lengths of PE pipe
  • Steel pipe
  • Reducers or socket fusion couplings
  • LYCOFIT® Mechanical Couplings
  • LYCOFIT® Mechanical and saddle fusion service tees

We can customize configurations as required.

  • Component Parts
  • Nozzle/Valve Seat
  • Housing
  • Plunger
  • Spring
  • Spring Retainer
  • Nose Cone
LYCO® EFV II

Designed primarily for ½” CTS applications.

Configuration Options:

  • Medium or high density PE pipe
  • Extended lengths of PE pipe
  • Socket fusion couplings
  • Saddle fusion service tees

We can customize configurations as required.

  • Component Parts
  • O-Ring
  • Nozzle/Valve Seat
  • Housing
  • Spring
  • Plunger
LYCO® CEFV

Designed primarily for 1 ¼” IPS and 2” IPS applications.

Configuration Options:

  • Medium or high density PE pipe
  • Extended lengths of PE pipe
  • Reducers or socket fusion couplings

We can customize configurations as required. 

  • Component Parts
  • Nozzle/Valve Seat
  • Retaining Ring
  • Spring
  • Plunger

Key Features

  • Meets or exceeds requirements of part 49 CFR 192.381
  • The spring is protected from the high-velocity gas stream
  • Resistant to clogging caused by line dust and particulate buildup
  • EFV II provides superior ½” CTS service protection with a patented design that provides the lowest pressure drop in the industry
  • A bypass feature allows an auto-reset after service line repair
  • The modular design allows integration into a multitude of pipes and fittings

Key Specifications

  • Lyall’s customizable EFVs are suitable for nearly any configuration. Get the right size for your specific application by using the LYCO® EFV sizing calculator.