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 |
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 |
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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