Installation, Operating & Maintenance Instructions
Series 244, DN 63 - 80 (I.D.2
1
/
2
" - 3")
Series 245, DN 63 - 80 (I.D.2
1
/
2
" - 3")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
265903EC
2010-03-02
5/10
1
Use of product
Use product for clean and dry indoor vacuum applications under the conditions indicated in chapter «Technical data» only!
Other applications are only allowed with the written permission of VAT.
1.1 Technical data for standard valve
Leak rate
1 x 10
-9
mbar l / s
Pressure range when valve is open
1 x 10
-7
mbar to 4 bar (abs)
Conductance in high vacuum
DN 63: 160 l s
-1
DN 80: 200 l s
-1
Differential pressure on the plate in opening / closing direction
DN63
≤
5 bar, DN80
≤
4 bar
Differential pressure at opening
≤
1 bar in either direction
Admissible temperature: valve body, actuator and handwheel
0°C
to
120°C
Technical data for valve with specific options according to «product data sheet».
Product data sheet on request.
2 Installation
2.1 Unpacking
Before unpacking the valve, make sure that the packaging is in impeccable condition and the valve has not suffered
damage.
Note!
The plastic packing material and/or protective covers may only be removed immediately before the valve is
mounted into the system. Unprotected sealing surfaces must be treated with care and kept clean.
