Rego LV4403Y and LV5503Y Series Second Stage Regulators for 2 PSI Systems
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Designed to reduce first stage pressure of 10 PSIG down to 2 PSIG. A line pressure regulator is required downstream to reduce the 2 PSIG to a nominal 11” W.C
Features:
- Large vent helps prevent blockage and has ¾” F.NPT for vent piping.
- With 15 PSIG inlet pressure, regulator is designed to not pass more than 5 PSIG with the seat disc removed.
- Incorporates an integral relief valve.
- Replaceable valve orifice and valve seat disc.
- Straight line valve closure reduces wear on seat disc.
- Unique bonnet vent profile minimizes vent freeze over when properly installed.
- Large molded diaphragm is extra sensitive to pressure changes.
- Built in pressure tap has plugged 1⁄8” F.NPT outlet. Plug can be removed with a 3⁄16” hex allen wrench.
- Select blue finish.
- Bonnet Vent Position: Over Inlet
Part Numbers:
| Part Number | Inlet Connection | Outlet Connection | Orifice Size | Adjustment Range | Vapor Capacity BTU/hr Propane** |
| LV4403Y4 | ½” F. NPT | ½” F. NPT | ¼” | 2 PSIG @ 10 PSIG Inlet | 1,000,000 |
| LV4403Y46R | ½” F. NPT | ½” F. NPT | ¼” | 2 PSIG @ 10 PSIG Inlet | 1,000,000 |
| LV5503Y6 | ¾” F. NPT | ¾” F. NPT | ¼” | 2 PSIG @ 10 PSIG Inlet | 2,200,000 |
| LV5503Y8 | ¾” F. NPT | 1” F. NPT | 9/32” | 2 PSIG @ 10 PSIG Inlet | 2,200,000 |
Maximum flow is based on 10 PSIG inlet pressure and 1.5 PSIG delivery pressure
Resources:
- LV4403Y and LV5503Y Series Second Stage Regulators for 2 PSI Systems Datasheet
-
Rego Regulators Catalog
-
Rego LP-Gas Serviceman’s Manual
- Rego Regulators Product Guide
