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1/4" Inlet x 1/2" Outlet 450,000 Btu/hr 11" WC Adjustable 9.5-13" WC
Unit of Measure

Purchasing Info

QTY Avbl For Sale

BEN

FLI

GOL

LEE

Stock Class

QB5

QB4

QB3

QB2

QB1

UOM

Specifications

Brand

Marshall Excelsior (MEC™)

Inlet Connection Size

1/4 in

Inlet Connection Thread Type

Female National Pipe Thread (FNPT)

Outlet Connection Size

1/2 in

Outlet Connection Thread Type

Female National Pipe Thread (FNPT)

Adjustment Range

9.5 to 13 inWc

Pressure Setting

11 inWc

Vent Location

Over Outlet

Capacity

450,000 Btu/hr

Internal Relief/Valve

true

Orifice Size

0.17 in

Vent Size

3/8 in7/16-24 in

Pressure Range

9.5 to 13 inWc

Outlet Pressure Range

9.5 to 13 psi

Type

Compact

Outlet Set Point

11 psi

Inlet/Outlet Connection Thread Type

Female National Pipe Thread (FNPT)
Capacity (Liquefied Petroleum Gas (LPG))1 450,000 Btu/hr

Note

Note

Relief Travel Stop Molded in Adjustment Cap

Series Specifications

Maximum Inlet Pressure

250 psig

Exterior Finish

Gray Powder Coat

Diaphragm Type

Body Seal Fabric Reinforced NBR Molded Lip O-Ring Bonnet

Industry Standards

UL 144 UL Listed

Stages

Integral Two Stage

Seat Material

Fluorocarbon (FKM)

Relief Type

Internal Relief - Spring Loaded

Bonnet/Body Material

Die-Cast Aluminum

Pressure Taps

#54 Orifice 1/8 Inch (in) Female National Pipe Thread (FNPT) Plugged (3)

Relief Travel Stop

Molded in Adjustment Cap - Gray

Standard Mounting Holes on Center

3-1/2 in

Proposition 65 Information

N/A

WARNING: This product can expose you to one or more chemicals known to the state of California to cause cancer, birth defects or reproductive harm. For more information, go to www.p65warnings.ca.gov

  • 1 Based on 30 PSIG inlet pressure and 20% droop