VN-TT ATEX

Productos
ATEX controllers
VN-TT ATEX

VN-TT ATEX

ATEX controllers
Control of solids

Intended use

Model with proccess connection Tube-Tube. The models are certificated for use in potentially explosive Dust and Gas atmospheres as well as in hybrid mixtures (Dust + Gas) hazardous areas.

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.

Function

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 enclosed 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 proccess connections like flange-flange, racor-racor, tube-tube or combinations of them and with the hose made of NRE.

Mechanical connection

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

Dimensions

Approximate measures given in mm.

Technical data


Name	Pneumatic pinch valve
Type	QV-A-... – ref: 2900-A-...
Certifications:
B6 Gas+Dust	ATEX II 2/2G IIB T X ATEX II 2/2D T X
B11 Gas+Dust	ATEX II 1/1G IIB T X ATEX II 1/1D T X
Maximum product temperature	+80° C
Ambient temperature	-20° C – +80° C
Procces pressure:
DN-13 and 20	+6 bar
DN-25 – 125	+4 bar (Under request higher pressures)
Control pressure	+2.5 bar over the proccess pressure
Difference in pressure	+2,5 bar depending on the model
Weight	0,27 Kg
Materials:
Housing	DN-13 – 25: Aluminium, Stainless Steel 1.4571 or POM DN-32 – 125: Aluminium, Stainless Steel 1.4571
Proccess connection:	DN-13 – 25: Aluminium, Stainless Steel 1.4571 or POM DN-32 – 125: Aluminium, Stainless Steel 1.4571
Elastic hose	Natural gummy resistent to abrasion (NRE)