Marshall Excelsior Compact 2 Stage RV Back Pressure Regulator/Relief Valve

These two-stage regulators are designed for portable and outdoor low-pressure applications. They feature durable zinc construction with integrated pressure tap ports and a drip lip vent for reliable performance.

Features:

• Durable die-cast zinc body with raw zinc finish for corrosion resistance
• Integrated high and low 1/8" NPT pressure tap ports for easy monitoring
• Spring-loaded internal relief diaphragm ensures consistent pressure regulation
• Integral drip lip vent protects against moisture and debris buildup
• Standard mounting holes spaced 3 1/2" on center for secure installation
• Optional 90 deg. vent location available on select models for flexible setup
• Fabric-reinforced molded diaphragm with O-ring bonnet and body seals
• Multiple inlet connection types including 1/4" FNPT, POL, and Type 1 QCC
• 3/8" FNPT outlet connection compatible with common fittings

Specifications:

• Type: Two Stage
• Max Inlet Pressure: 250 PSI
• Pressure Capacity:
  • Low: 120,000 BTU/hr
  • Standard: 175,000 BTU/hr
  • High: 225,000 BTU/hr
• Inlet Connection: 1/4" FNPT, POL, Type 1 QCC
• Outlet Connection: 3/8" FNPT
• Mounting Hole Spacing: 3 1/2" On Center
• Pressure Tap Size: 1/8" FNPT Plugged
• Diaphragm Material: Fabric Reinforced Molded
• Bonnet/Body Material: Die Cast Zinc
• Certifications: UL 144 Listed