ZTRB – 3-way zone valves, DN25-40, female threaded

Valves for control of heating and cooling in climate, heating and ventilation systems. Intended to be used together with the RVAZ4 actuators.

Technical description

Pressure rating	PN16
Connection, actuator	M30 x 1.5
Connection	BSP female threaded according to ISO 228/1
Flow characteristics	Linear
Leakage	0 % when the valve is closed
Media temperature	1…110°C
Media	Hot or cold water. Also refrigerants (max. 30 % glycol).
Rangeability	50:1
Stroke	5mm
Body	Brass CZ 121
Seat	Brass CZ 121
Plug	Brass CZ 121
Stem	Stainless steel 303S31
Seat packing	EPDM
O-rings	EPDM