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ISO 9001
EN 29001
Installation, Operating, and Maintenance Instructions
Series 021
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vat.ch
205440EC
2003-04-14
12/12
Trouble Shooting
Valve does not close / open :
Power available?
Check voltage.
Compressed air available?
Check air pressure.
Solenoid defective?
Check solenoid (manual emergency operation).
Leak at gate :
Dirty?
Clean valve seat and gate.
Gate seal damaged?
Replace gate if damaged.
Seal compression weak?
Check air pressure and actuator adjustment.
Leak at body :
Flanges leak tight?
Clean or replace flange O-ring.
Leak at bellows?
Replace bellows.
Repairs
Contact VAT for repairs or maintenance. Please advise the serial No. (F021 . . . . . / . . . . ) marked on the actuator.
It is individually decided whether the repair can be performed by the customer or has to be carried out by VAT.
Disconnect all supplies (e. g. compressed air, electrical power) for removal/installation of the valve from/into the
system before doing any repair.
Even with disconnected supply, loaded springs and/or air cushions in cylinders are potential hazards.
Keep fingers and objects away from the valve openings!
Products returned to VAT for repair have to be free of harmful substances such as e.g. toxic, caustic or micro-biological
ones. For radioactive contaminated products fill in the VAT form «Contamination and Radiation Report» and send it with
the product. The form is available at VAT. The maximum permissible values indicated in the form must not be exceeded.
Warranty
Each product sold by VAT Vakuumventile AG (VAT) is warranted to be free from the manufacturing defects that adversely
affect the normal functioning thereof during the one-year period immediately following delivery thereof by VAT, provided
that the same is properly operated under conditions of normal use and that regular, periodic maintenance and service is
performed or replacements made, in accordance with the instructions provided by VAT. The foregoing warranty shall not
apply to any product or component that has been repaired or altered by anyone other than an authorized VAT
representative or that has been subject to improper installation or abuse, misuse, negligence or accident. VAT shall not be
liable for any damage, loss, or expense, whether consequential, special, incidental, direct or otherwise, caused by, arising
out of or connected with the manufacture, delivery (including any delay in or failure to deliver), packaging, storage or use
of any product sold or delivered by VAT shall fail to conform to the foregoing warranty or to the description thereof
contained herein, the purchaser thereof, as its exclusive remedy, shall upon prompt notice to VAT of any such defect or
failure and upon the return of the product, part or component in question to VAT at its factory, with transportation charges
prepaid, and upon VAT's inspection confirming the existence of any defect inconsistent with said warranty or any such
failure, be entitled to have such defect or failure cured at VAT's factory and at no charge therefor, by replacement or repair
of said product, as VAT may elect. VAT MAKES NO WARRANTY OR REPRESENTATION OF ANY KIND, EXPRESS OR
IMPLIED, (INCLUDING NO WARRANTY OR MERCHANTABILITY), EXCEPT FOR THE FOREGOING WARRANTY AND
THE WARRANTY THAT EACH PRODUCT SHALL CONFORM TO THE DESCRIPTION THEREOF CONTAINED
HEREIN, and no warranty shall be implied by law. Furthermore, the «Terms of sale» at the back of the price list are
applicable.
