Installation, Operating & Maintenance Instructions
Series 75.2, DN 40 (I.D. 1 ½”)
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email
www.vatvalve.com
207088EB
2005-04-28
4/12
Solenoid (opening)
- Supply voltage
24V DC
- Power required
2.5 W
Closing time
<
10 ms
Opening time
7 s
Weight
2 kg / 4.5 lbs
2 Installation
2.1 Unpacking
Be careful during opening the boxes and nylon bag, do not contaminate the valve.
Pay attention that valve and flanges are not damaged when the valve is lifted out of the box and
handled afterwards.
2.2 Installation into the system
Tighten mounting screws of the flanges uniformly in crosswise order. Observe the maximum torque of
9 Nm / 6.5 lbf . ft for CF flanges.
2.2.1 Admissible forces
Forces from evacuating the system, from the weight of other components,
and from baking can lead to deformation of the valve body and to malfunction
of the valve. The stress has to be relieved by suitable means, e.g. bellows
sections. The following forces are admissible:
Axial tensile or compressive force «FA»: 500 N / 112 lbf
Bending moment «M»:
30 Nm / 22 lbf . ft
If a combination of both forces («FA» and «M») occurs, the values mentioned
above are invalid. Please contact VAT for more information.
