The LYCO® EFV I, Magnum (Patent Pending) series is primarily designed for 1/2 CTS residential service line applications though many carrier options are available for adapting to other service sizes.

Series - Available in 4 of the most common Trip-Point ranges (@ 10 psig).

• EFV II Magnum Series 375
• EFV II Magnum Series 400
• EFV II Magnum Series 450
• EFV II Magnum Series 775

Configurations:
View Configuration Guide

• Your specified lengths "Sticks" (6" lengths are standard)
• Your specified PE type, Medium or High Density
• Socket Fusion Couplers
• Adapted to Service Tees

LYCO® EFV II - Specifications:

• Service Temperatures: -20°F to 140°F
• Operating Pressure: 5 – 125 psig (depending on housing)
• By-pass Flow Rate: 5 to 20 SCFH at a line pressure of 10 psig*
• Actuation Flow Rate: Dependent on line pressure and EFV model (See graph)*

* For additional data, please reference the LYCO® EFV II Technical Data Package.

A complete set of specifications and test results for Lyall’s Excess Flow Valves is available upon request. Please contact your R.W. Lyall & Company Sales Representative for additional information.

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