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Installation, Operating & Maintenance Instructions

Series 244, DN 10 - 50 (I.D.

⅝" - 2")

Series 245, DN 16 - 50 (I.D. 1" - 2")

VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com

258343EE

2013-09-16

8/14

Operation

3.1 Normal operation

Valve with pneumatic actuator: - valve is opened by a spring (NO)

- valve is closed pneumatically

3.2 Operation under increased temperature

See «1.1 Technical data»

3.3 Behavior in case of compressed air pressure drop

Valve closed: valve opens
Valve open: valve remains open

3.4 Behavior in case of power failure

Valve is opened by a spring

Trouble shooting

Failure

Check

Action

Valve does not close

Power available?

Connect correct voltage

Compressed air available?

Connect correct air pressure

If you need any further information, please contact one of our service centers. You can find the addresses on our website:
http://www.vat.ch

Содержание 244 Series

Страница 1: ...ated on each product as per the label below or similar made in Switzerland Fabrication No patented 24 A Fabrication number Explanation of symbols Read declaration carefully before you start any other...

Страница 2: ...ies microfilms or any other reproduction processes nor may it be manipulated with electronic systems duplicated or distributed without written permission from VAT Offenders are liable to pay damages T...

Страница 3: ...into the system 5 2 3 Connections 5 2 3 1 Compressed air connection 5 2 3 2 Electrical connection 6 3 Operation 8 3 1 Normal operation 8 3 2 Operation under increased temperature 8 3 3 Behavior in ca...

Страница 4: ...onductance in high vacuum DN 10 3 l s 1 DN 16 5 l s 1 DN 25 14 l s 1 DN 40 45 l s 1 DN 50 80 l s 1 Differential pressure on the plate in opening direction 2 bar in closing direction 5 bar Differential...

Страница 5: ...the system Unprotected sealing surfaces must be treated with care and kept clean 2 2 Installation into the system DN nom I D Axial tensile or compressive force FA Bending moment M mm inch N lbf Nm lbf...

Страница 6: ...sion P bar MPa min max 4 0 4 8 0 8 P bar MPa M5 1 8 Position indicator open closed Admissible temperature 80 C standard Position indicator open closed Admissible temperature 120 C option Lo Position i...

Страница 7: ...ftung Echappement MV Coil solenoid valve Spule Steuerventil Bobine de l lectrovanne overpressure berdruck surpression P bar MPa min max 4 0 4 8 0 8 P bar MPa M5 1 8 6 5 4 3 2 1 2 1 6 5 3 4 Lg Lo 1 2...

Страница 8: ...losed pneumatically 3 2 Operation under increased temperature See 1 1 Technical data 3 3 Behavior in case of compressed air pressure drop Valve closed valve opens Valve open valve remains open 3 4 Beh...

Страница 9: ...d by the customer or has to be carried out by VAT The fabrication number on the valve made in Switzerland Fabrication No patented A Fabrication number has always to be specified All supplies e g compr...

Страница 10: ...te assembly Remove 4 screws 60 uniformly and crosswise Attention Loaded spring Withdraw actuator gate assembly carefully from body pneumatic actuator Remove bonnet seal O ring 62 from groove 5 1 2 Rep...

Страница 11: ...refully open vice and remove relaxed insert Remove the parts 26 11 26 5 26 4 and 15 1 from plate 15 2 by axially disperse the parts Pick feedthrough O ring 15 3 with a needle and pull it out of groove...

Страница 12: ...ww vatvalve com 258343EE 2013 09 16 12 14 5 1 4 Mount actuator plate assembly Check and clean sealing surfaces of bonnet flange and valve seat Put bonnet seal O ring 62 into body Carefully insert actu...

Страница 13: ...feedthrough complete 15 1 Feedthrough end piece 15 2 Plate 15 3 Shaft feedthrough O ring 26 Actuator complete 26 2 Piston 26 4 Support bushing 26 5 Spring 26 7 O ring for pneumatic actuator 26 8 O rin...

Страница 14: ...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 delive...

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