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Location:

Office:
2865 Rudder Road
Memphis, TN 38118

Warehouse:
2875 Rudder Road
Memphis, TN 38118

Phone: (901) 363-0377
Fax: (901) 365-6809

Email:
sales@tristatemeter.com

Dresser Excess Flow Valves

Excess Flow Valves are used to minimize excaping gas in the event of third party damage and other types of line ruptures.

  • Maintenance-free...No lubrication or monitoring required
  • 100% Production-tested...per ASTM F1802 test method assuring trip and bypass flow rates per CFR Title 49 D.O.T. 192.381, MSS-SP-115 and ASTM F2138 governing standards
  • Valve Resets Automatically...no need to excavate or manually repressurize line
  • Low Pressure Loss...maximizes gas flow
  • Self-cleaning Design...resists particulate build-up
  • Integrated Seal & Restraint Rib...provides gas-tight seal and positive restraint

General Brochure:PDF

Low Capacity Med Capacity High Capacity
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Umac Excess Flow

UMAC Excess Flow valves (EFVs) are installed underground where the gas service line joins the main
  • Accommodates pressures from 5 psi to 1000 psi (Depending on Series of EFV)
  • Flow Ranges from 1,000,000 to 24,000,000 BTU
  • Meet DOT 192.381 and MSS-SP-115; MSS-SP-142 for excess flow valves for use in natural gas system
  • Tested to, or in accordance with, ASTM F 1802
  • Compatible with steel or plastic fittings and piping materials from most manufacturers
350 400 700 1800
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