Ventilation Valve

The equalization of pressure is essential for loading and unloading rail tank cars. There is a high risk for the operating personnel as well as for the environment and assets if tanks are not well ventilated (Example for non-vented tank). Therefore, ventilation valves are essential for ensuring the safety of tanks used for transporting and storing liquids. Their independent and reliable function is the key safety issue in any situation.

Series ZB2-100 forced ventilation valves are incorporated in the hydraulic circle of the loading and unloading process of the rail car tank. Regardless of weather and operating conditions, the valve opens reliably. The modular design of series ZB2-100 yields additional safety features. In case of an accident, the hydraulic drive of the valve can be damaged or even totally detached from the vessel without opening the valve and purging liquid to the environment.

Series ZB2-100 has the appropriate approval according to EN 14432:2014 and can be used on any approved rail tank car.

Technical Data

Type	ZB2-100	ZB3-65	ZB4-100	ZB5-100
Actuation	hydraulic			mechanical
Pressure Range	PN 10	PN 6	PN 10	PN 10
Venting Ports	2 x DN 50, Rectangular Flange	1 x DN 40, Oval Flange	DN 80	DN 80, Screw Connection
Length Beneth Top Of Tank	140 mm	100 mm	140 mm	140 mm
Length Above Top Of Tank	150 mm	150 mm	150 mm	150 mm
Flange	DN 100	DN 65	DN 100	DN 100
Hydraulic Port	DIN 2353			-
Max. Hydr. Pressure	12 MPa			-
Temperature	-20 °C bis +80 °C
Wetted Material	1.0570 Zinc Plated, 1.4305, 1.4310, FPM (optional: 1.4571, Viton GF, PTFE)
Valve Seal	PTFE (optional: Neoprène, Viton GF)	FPM (optional: Viton GF, PTFE)	PTFE (optional: Neoprène, Viton GF)	PTFE (optional: Neoprène, Viton GF)

*Technical Modifications Withheld