Model with proccess connection Thread-Thread.

The pneumatic pinch valves VN with the elastic hose are to be used to control the transport or distribution for dusty and powdery, granulated and grainy bulk goods or viscous or liquid products.

Inside the valves there is an elastic hose made of Natural gummy that is squeezed either by compressed air or by water pressure. The existing solids are encolsed due to this compression and when there is no pressure in the valve, the hose opens and returns to the original shape allowing the flow of product.

There are models with diameters from 13 to 125 mm and with many different proccess connections like flange-flange, racor-racor, tube-tube or combinations of them and with the hose made of Natural gummy resistan to abrasion or Food white gummy depending on the application.

The mounting of these models is made by insterting the valve between a pipe with the thread connections.


Approximate measures given in mm.

Technical data

NamePneumatic pinch valve
TypeVN... ref: 2900
Maximum product temperature:(depending on the material of the hose)
NR+80º C
NW+70º C
NRE+80º C
VI+100º C
EPDM+120º C
Ambient temperature-20° C – +70° C
Procces pressure:
DN-13 y 20+6 bar
DN-25 – DN-125+4 bar
(Under request higher pressures)
Control pressure+2.5 bar over process pressure
Difference in pressure +2.5 bar depending on the model
Weight0,27 Kg
BodyDN-13 – DN-125
Aluminium, Stainless Steel 1.4571 or POM
DN-32 – DN-125
Aluminium, Stainless Steel 1.4571
Proccess connection DN-13 – DN-125
Aluminium, Stainless Steel 1.4571 or POM
DN-32– DN-125
Aluminium, Stainless Steel 1.4571
Elastic hoseNatural gummy resistent to abrasion (NR)
Food white gummy (NW)
Natural gummy resistent to abrasion (NRE)
Viton (VI)

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