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Gas control (NAT 160°F 1” cavity)
Gas control (NAT 160°F 1” cavity)


Gas control (NAT 160°F 1” cavity)

  • Product Info
  • Literature


The WT8840 series is the Water Heater Control for trade use to replace WV8840 valves used in AOSmith and Bradford White Water Heaters. It is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. An included integrated NTC temperature sensor reads water temperature within the appliance up to 221 F (105 C).

Product Specifications

Gas control
87C TCO; Replaces WV8840A1000, WV8840A1001, 222-47463-01A, 222-47463-01E, or 239-47463-01
Item Type
Mounting in the upright position
Temperature Ratings (C)
Ambient-- 0 C to 60 C; TCO Limit-- 87 C
Temperature Ratings (F)
Ambient-- 32 F to 150 F; TCO Limit-- 189 F
Setpoint Temperature Range (F)
Valve-- 55F to 155F
Pressure Regulator Setting (psi)
4.0 in. wc
Inlet/Outlet Size (in.)
1/2 in. NPT x 1/2 in. Inverted Flare
Min. 30 ft3/hr, Max. 75ft3/hr