Honeywell Gas valve V4600C1193U

This is a servo-controlled combination gas valve for boilers and water heaters. It combines a pilot flame control (pilotstat), a servo actuator valve, and a pressure regulator in one housing. The valve is designed for standing-pilot operation with a Honeywell pilot burner, thermocouple, and thermal relay, and it supplies gas to the main burner only when the pilot flame is present. Technical specifications: maximum inlet pressure 60 mbar (pressure category III); supply voltage 220–240 V, 50 Hz, 0.02 A; operating temperature 0 °C; protection class J; certification CE-0063AP3090/3.

When selecting a replacement for this type of gas valve, match the brand and series, connection size (typically Rp 1/2" to 2" or flanged), coil voltage (230 V or 24 V AC/DC), and function — single or double solenoid, slow opening, servo-regulated, or multiblock with integral filter and regulator. The coil is often replaceable separately from the valve body, which can simplify servicing if the coil fails. Always verify electrical compatibility and mechanical connections, and confirm that the burner control sequence matches the valve's opening characteristics.

Typical failures of items of this kind include leaking seat and drifting outlet pressure. A seized servo regulator is also a common failure mode.