7.2.1 Replacement Of Gate Seals And Valve Cleaning - VAT 642 Series Installation, Operating, & Maintenance Instructions

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 13mm

Open end torque wrench 13 mm

Clean room wiper
1. Vent both valve chambers
2. Open the valve
3. Turn off power to valve controller
4. Disable power-fail option (wait 60
seconds)
5. Disconnect power cable at controller
6. Unfasten and remove the bonnet
screws
7. Remove valve bonnet and vulcanized
bonnet seal
8. Deposit both parts on a clean place
64/85
MAINTENANCE
Description
§
Edition 2013-07-02

Isopropyl alcohol

Vacuum grease (see chapter spare parts)

O-ring removal tool
(see chapter Accessories)
Series 642
Required tool
CPA or Service Box 2
2 × Open end wrench
13 mm
602844EB