Armstrong RV-4 3/4 in NPT Thermostatic Radiator Valve

Armstrong's RV-4 is a thermostatic one-pipe radiator valve for low-pressure steam that controls individual room temperature automatically through air venting.

Part D24649 is the Armstrong RV-4 in 3/4 in NPT.

Model RV-4 specifications

• Connection Type: NPT Solder-1/2″ (15 mm), 3/4″ (20 mm)
• Maximum Allowable Pressure: Steam 15 psi (1 bar) Water 150 psi (10 bar)
• Maximum Allowable Temperature: 250°F (121°C)
• Body Material: Nickle Plated Brass
• Maximum Operating Pressure: Steam 15 psi (1 bar) Water 150 psi (10 bar)
• Body Pattern: Straight, Angle, Reverse Angle
• Connection Size: 1/2″ (15 mm) 3/4″ (20 mm) 1″ (25 mm) 1-1/4″ (32 mm)

Manufacturer documentation: data sheet.