VAT 642 Series User Manual

Series 642 MAINTENANCE
742280ED Edition 2017-11-24 97/
119
7.2.1 Replacement of gate seals and valve cleaning
7.2.1.1 Required tools
• Allen Wrench 4 mm (Allen torque wrench 4 mm)
• 2 × Open end wrench 13 mm
• Open end torque wrench 13 mm
• 2 × Open end wrench 10 mm
• Open end torque wrench 10 mm
• Isopropyl alcohol
• Vacuum grease (see chapter spare parts)
• O-ring removal tool
(see chapter Accessories)
• Clean room wiper
Description
Required tool
1. Vent both valve chambers
2. Open the valve
3. Turn off power to valve controller
4. Disable power-fail option (wait 60
seconds)
CPA or Service Box 2
5. Disconnect power cable at controller
6. Unfasten and remove the bonnet
screws
§
2 × Open end wrench
10 mm (DN 63 / 100)
2 × Open end wrench
13 mm (DN160…400)
7. Remove valve bonnet and bonnet seal
8. Deposit both parts on a clean place

VAT 642 Series Specifications

General

Brand	VAT
Model	642 Series
Category	Control Unit
Language	English