Campbell Relief Valve & Flow Regulator by Campbell Manufacturing.

• Relief Valve Imported Brass (RV-NLF): non-adjustable, 75 or 100 PSI — 1/2" and 3/4"
• Relief Valve Imported Stainless (RV-TSS / RV-N100SS): non-adjustable 75 or 100 PSI
• Relief Valve Heavy Duty (RV-LF): 10-200 PSI adjustable, 1/2" to 2" — sold preset only
• DOLE Flow Regulators: self-cleaning, flexible orifice, responds to pressure surges up to 125 PSI
• Y-Series (3/4" MIP x 3/4" FIP brass), B-Series (1/2" FIP), C-Series (3/4" FIP), X-Series (1" FIP)
• Delivers constant flow within ±15% — installs between check valve and pressure tank
• Select Type, Size, and Pressure / Flow Rate from the dropdowns