Manual safety valve SI2
for fluidspneumatic

manual safety valve
manual safety valve
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Other characteristics
manual, for fluids, pneumatic
Controlled pressure

10 bar
(145 psi)


Min.: 25 mm
(0.984 in)

Max.: 100 mm
(3.937 in)

Flow rate

Min.: 0 m³/h
(0 ft³/h)

Max.: 300 m³/h
(10,594.4 ft³/h)


The spring-loaded full-stroke SI2 safety valve is approved for fluids and gases. Advantages Hygienic design Ideally suited for CIP applications All product-contact parts finished to Ra 0.8 m. Pneumatic or manual operation The pneumatic seat lifting device can be equipped with proximity switches for feedback signals. Quick and easy seal replacement The nameplate details uniquely identify each valve. The SI2 safety valve prevents the allowed operating pressure from being exceeded by more than 10%. If, after opening, the adjusted response pressure falls below max. 10% (gases) and max. 20 % (liquids), the valve closes. Field of application The TÜV type-test approved valve is used at pressure vessels which have to be protected against excessive pressure. In the beverage and food industry as well as in pharmaceutical applications, the valve safeguards tanks and other containers against inadmissible excess pressure.


*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.