| Specification | Details |
|---|---|
| Brand | Marshall Excelsior Company (MEC) |
| MPN / Model | MEGR-253-CF |
| Series | MEGR-253 |
| Product Type | Compact Second-Stage LP-Gas Regulator |
| Stage | Second Stage |
| Gas Service | Propane / LP-Gas Vapor |
| Inlet Connection | 3/4" FNPT |
| Outlet Connection | 3/4" FNPT |
| Outlet Location | Back |
| Capacity | 700,000 BTU/hr |
| Factory Outlet Setting | 11" W.C. |
| Outlet Adjustment Range | 9–13" W.C. |
| Typical Inlet Pressure | Approx. 10 PSIG from first-stage regulator |
| Vent Location | Over Inlet |
| Internal Relief Valve | Yes |
| Relief Type | Internal Relief – Spring Loaded |
| Exterior Finish | Green Powder Coat |
| Diaphragm | Fabric-reinforced NBR molded lip / O-ring bonnet |
| Spring | Stainless Steel |
| Body / Bonnet Material | Die-Cast Aluminum |
| Pressure Test Ports | (2) Plugged 1/8" FNPT ports |
| Adjustment Cap | Gray |
| Unit of Measure | Each |
| Condition | New, if unused |
The screenshot identifies the exact MEGR-253-CF configuration as a 3/4" inlet × 3/4" outlet compact second-stage regulator, rated at 700,000 BTU/hr, with an 11" W.C. setting adjustable from 9–13" W.C.
For sale is a Marshall Excelsior Company (MEC) MEGR-253-CF compact second-stage propane/LP-Gas regulator. This model features 3/4" FNPT inlet and 3/4" FNPT outlet connections, with the outlet arranged in a convenient back-mount configuration.
The MEGR-253-CF is designed for use as the second regulator in a two-stage LP-Gas system. It receives reduced intermediate pressure from a compatible first-stage regulator and lowers it to approximately 11 inches water column for downstream low-pressure propane distribution.
With a rated capacity of approximately 700,000 BTU/hr, this regulator is suitable for residential and similar propane installations requiring substantial vapor capacity. The outlet setting can be adjusted approximately 9–13" W.C.
Its rugged design incorporates a die-cast aluminum body and bonnet, stainless-steel spring, fabric-reinforced diaphragm, internal spring-loaded relief system, pressure test ports and green powder-coated exterior.
The MEGR-253-CF is suitable for residential propane installations, two-stage LP-Gas systems, tank installations, building propane distribution systems, multiple-appliance installations and other compatible low-pressure propane vapor systems.
Typical system arrangement:
LP Tank → First-Stage Regulator → MEGR-253-CF Second Stage → Low-Pressure Distribution → Propane Appliances
This regulator should be selected according to system inlet pressure, required BTU load, downstream pressure and applicable LP-Gas codes.
This is a second-stage regulator, not a first-stage tank-pressure regulator. It should not be connected directly to full propane container pressure unless specifically petted by the manufacturer's system design.
Installation, vent orientation, pressure adjustment and leak testing should be performed by qualified personnel in accordance with applicable codes.