MEC VAPOR BACKPRESSURE / RELIEF VALVE – 2” FNPT – 7-18 INCHES WC

ID: MEGR-1289H/1

MEC MEGR-1289H/1 BACK PRESSURE REGULATOR / RELIEF VALVE



  • 2" FNPT INLET / OUTLET

  • MAXIMUM INLET PRESSURE OF 25 PSIG

  • SET POINT RANGE: 7 - 18" WATER COLUMN; SET POINT: 9" WATER COLUMN

  • CAPACITY: 55,000 SCFH/PROPANE

Available in settings ranging between 1 to 75 PSIG for the 3/4” & 1” models and 7”WC to 15 PSI for the 2” models. The MEGR-1289H Series relief valve is a throttling relief valve used downstream of pressure regulators to protect the downstream system from overpressure. A smooth throttling action minimizes pressure surges in the system during emergency operation.

This unit features a pilot tube booster to achieve the highest possible relief capacity with a minimum buildup of system pressure.

The MEGR-1289H Series relief valve is installed between large second stage regulators and the burner to provide high capacity relief. They are ideal for low pressure settings due to the increased sensitivity provided by the large diaphragm area. Suitable as a pressure high capacity relief device when installed between a first and second stage regulator.

Specifications:

  • Type: Adjustable / Inches WC or PSI
  • Max. Inlet Pressure: 100 PSIG (1” Body); 25 PSIG (2” Body)
  • Spring: Plated Steel
  • Exterior Finish: Gray Powder Coat
  • Diaphragm: Fabric Reinforced Nitrile (NBR)
  • Bonnet/Body Material: 1” - All Aluminum; 2” - Aluminum Bonnet / Iron Body