REGO Low Pressure Second Stage Regulators – Standard Settings LV5503B Series

Series LV5503B4, LV5503B6, LV5503B8

Application
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 plugged⅛” 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

Materials
Body (LV5503B Series ………………………………. Die Cast Aluminum
Bonnet (LV5503B Series) …………………………… Die Cast Aluminum
Nozzle Orifice ……………………………………………………………… Brass
Spring …………………………………………………………………………. Steel
Valve Seat Disc ……………………………………………. Resilient Rubber
Diaphragm …………………… Integrated Fabric and Synthetic Rubber

Dielectric Low Pressure Second Stage Regulators – Standard Settings LV5503BD Series

Series LV5503B4D, LV5503B6D, LV5503B8D, LV5503B1D, LV5503B5D, LV5503B16D, LV5503B48

Application
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.
RegO Dielectric second stage regulators are engineered to isolate
potential electrical current from metallic piping before entering a
building. The use of a separate dielectric union is not necessary
because the regulator contains a dielectric union as part of the inlet
assembly. Available in both SAE Flare and F.NPT inlet connection.

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 plugged⅛” 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.

Materials
Body (LV5503BD Series …………………………….. Die Cast Aluminum
Bonnet (LV5503BD Series) ………………………… Die Cast Aluminum
Nozzle Orifice ……………………………………………………………… Brass
Spring …………………………………………………………………………. Steel
Valve Seat Disc ……………………………………………. Resilient Rubber
Diaphragm …………………… Integrated Fabric and Synthetic Rubber