Rego LV5503B Series Low Pressure Second Stage Regulators
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Designed to reduce first stage pressure of 5 to 20 PSIG down to burner pressure, normally 11” w.c. Ideal for larger commercial and industrial applications, multiple cylinder installations and large domestic systems
Features:
- Incorporates integral relief valve.
- With 15 PSIG inlet pressure, regulator is designed to not pass more than 2 PSIG with the seat disc removed.
- Replaceable valve orifice and valve seat disc.
- Straight line valve closure saves wear on seat disc and orifice.
- Built in pressure tap has plugged 1⁄8” F.NPT outlet. Plug can be removed with a 3⁄16” hex allen wrench.
- Large bonnet vent profile minimizes vent freeze over when properly installed.
- Extra long lever arm for uniform delivery pressure.
- Large diaphragm is extra sensitive to pressure changes.
- Bonnet Vent Position: Over Inlet
Part Numbers:
| Part Number | Inlet Connection | Outlet Connection | Orifice Size | Factory Delivery Pressure | Adjustment Range | Vapor Capacity BTU/hr Propane** |
| LV5503B4 | ½” F. NPT | ¾” F. NPT | ¼” | 11” w.c. at 10 PSIG | 9” to 13” w.c. | 1,600,000 |
| LV5503B6 | ¾” F. NPT | ¾” F. NPT | ¼” | 11” w.c. at 10 PSIG | 9” to 13” w.c. | 1,600,000 |
| LV5503B8 | ¾” F. NPT | 1” F. NPT | 9/32” | 11” w.c. at 10 PSIG | 9” to 13” w.c. | 2,300,000 |
Maximum flow is based on 10 PSIG inlet and 9” w.c. delivery pressure.
Resources:
- LV5503B Series Low Pressure Second Stage Regulators Datasheet
-
Rego Regulators Catalog
-
Rego LP-Gas Serviceman’s Manual
- Rego Regulators Product Guide
Also See:
- Rego LV3403B4 Series Compact Second Stage Regulator for LP-Gas
- Rego LV4403B Series Low Pressure Second Stage Regulators
- Rego LV5503G4 Series Low Pressure Second Stage Tobacco Barn Regulator
- Rego LV4403Y and LV5503Y Series Second Stage Regulators for 2 PSI Systems
