Johnson Controls V47AB-24 Temperature Regulating Valve

The Johnson Controls V47AB-24 valve is a commercial, direct-acting regulator for temperature-controlled water service. It opens with rising temperature to maintain stable flow in cross-ambient conditions

• Part Number: V47AB-24
• Series: V47 Temperature-Actuated Modulating Valve
• Valve Type: Direct Acting, Commercial
• Control Action: Opens on Temperature Increase
• Connection: 1/2″ NPT
• Body Material: Cast Brass
• Temperature Range: 75 to 135 °F
• Maximum Bulb Temperature: 155°F
• Bulb Size: 11/16″ x 3 1/4″
• Capillary Length: 2 ft

Key Features and Functionality

• Compact Bulb: Improves installation flexibility through a slim, space-saving profile.
• Direct Action: Delivers an immediate response by opening as the bulb warms.
• Manual Flush: Allows quick cleaning through built-in flushing capability.
• Low Noise: Minimizes chatter and hammer through stable valve design.
• Line Protection: Withstands hydraulic shock through reinforced construction.

Compatible Components and Related Parts

• Seat Repair Kit: STT15A-602R
• Replacement Sensing Element: SET29A-602R
• Bulb Well Number: WEL17A-600R

Industry Applications

• Engines: Maintains proper jacket water temperature under load.
• HVAC Units: Regulates water temperature within coil circuits.
• Compressors: Supplies cooling water flow as heat increases.
• Heat Exchangers: Stabilizes outlet temperature in circulation systems.

Compliance and Approvals

• Johnson Controls manufacturing standards
• Suitable for non-corrosive water systems

Installation and Operational Notes

• Flush liquid lines to clear debris before installation.
• Connect the lines in the direction indicated by the valve.
• Keep bulb and capillary free from contact with metal surfaces.
• Mount the valve vertically with the bellows facing down.
• Avoid installing the bulb above the liquid level or near air pockets.