Operation; Two Way Valves - Salus SBMV22 Instruction Manual

Salus SBMV22 (2 port 22mm) Manual.qxd:Layout 1 9/1/11 10:57 Page 6

OPERATION

Two way valves

A two way motorised valve has port A normally
closed with no power to the valve. When the
electrical supply is activated, the actuator motor
overcomes the force of the internal spring and
opens the valve fully. This allows water to flow
from port A to port B.
The valve is kept in the open position until the
electrical supply is interrupted. When the
electrical supply is interrupted the internal spring
drives the valve back and closes port A.
6 SBMV22 INSTRUCTION MANUAL