ZV22 Motorised Zone Valve - 2 Port 22mmZV22 Motorised Zone Valve 2 Port 22mm Motorised valve, two port zone normally closed, 230 V AC operation with microswitch. Head assembly demountable for servicing. Industry standard synchronous motor. Either the total head assembly or the motor can be replaced when necessary. Can be used as a 'S' plan valve. 3 amp switching. Product Specification Closed or Open Normally Closed Connection 22 mm Comp. Power Supply 230 V AC Size 22 mm Type 2 Port Zone