
Installation, Operating & Maintenance Instructions
Series 615 DN 40 (I.D. 1.5”), RS485
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
289111EB
2013-02-05
7/96
Valve unit
Pressure range at 20 C
1 x 10E-8 mbar to 1.2 bar (abs)
Leak rate to outside at 20 C
1 x 10E-9 mbar l/s
Leak rate valve seat at 20 C
1 x 10E-9 mbar l/s
Cycles until first service:
- Isolation cycles (open - closed - open)
250‟000 (with FKM (e.g. Viton®) seals, under clean and unheated conditions)
- Throttling cycles (open - max. throttle - open)
2‟000‟000 (with FKM (e.g. Viton®) seals, under clean and unheated
conditions)
Admissible operating temperature
10°C to +120°C
Mounting position
Valve seat must face chamber side. Control unit for ISO-KF version needs
support, when mounted on horizontal piping and control unit does not hang.
Wetted Materials
- Body
Stainless steel 316L (1.4404 or 1.4435)
- Plate
Stainless steel 316L (1.4404 or 1.4435)
- Shaft
Stainless steel 316L (1.4404 or 1.4435)
- Plate screws
Stainless steel 316L (A4)
- Plate seal
FKM (e.g. Viton®)
- Rotary feedthrough seals atmosphere side
FKM (e.g. Viton®)
- Rotary feedthrough seals vacuum side
FKM (e.g. Viton®)
- Slide bearing for shaft
iglidur® X
Other parts
Stainless steel 316L
(1.4404 or 1.4435), 1.4122, 301 (1.4310), 304 (1.4303), 1.4571, 304 (A2)
Max. differential pressure on plate during isolation
1000 mbar
Max. differential pressure on plate
during opening and throttling
1000 mbar
Min. controllable conductance [N
2
molecular flow]
0.05 l/s
Conductance in open position [N
2
molecular flow]
60 l/s
Weight about
3.3 kg
Dimensions
Refer to dimensional drawing of specific valve ordering number
(available on request)