This motor is rated for CCW (Counter-Clockwise) rotation when viewing from the lead end/back of the motor

Can I use this with chemical descalers

For maximum benefit

Fail-Safe Operation: Mechanical spring-return design ensures the valve stem raises to the safe position during total air loss

Does this valve include a thermocouple

Watts 0382589 Valve R-410A This motor is rated forThe Watts 0382589, also designated as model 740 1 40, is a high capacity ASME Section IV iron body boiler pressure relief valve engineered specifically for hot water space heating applications. This 1" x 1. 25" NPT valve is designed to protect hydronic systems from over pressurization, featuring a set pressure of 40 PSI and a substantial steam discharge capacity of 1,600,000 BTU hr. Its construction utilizes a rugged iron body with an expanded outlet