It turn on/off the valve by putting through/cutting off the control wire.

Power supply	DC12V /DC24V
Medium	cold ,hot water
Medium temp	-5°c–100°c
Flow characteristic	on/off
Max diameter	DN13
Leakage rate	<1L/h(no leakage at factory)
Interface form	hoop
Rotation angle	90°c
Installation	Horizontally upright
Ambient temperature	-30°c—80°c
Storage temperature	-40°c—85°c
Maintenance	Maintenance free
Dimensions	112x57x72mm, (wire length is adjustable)
Weight	175g
Quality certification	TS16949/ISO9001

Dimension drawing

Connection:

a. Be Compatible with most control panel. 
b. Stable,mature product
c. Economic cost. Mass production
d. The length of leading wire customer-design
e. The connector could be made at customer-oriential design, Tek, Molex, etc