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UHV gate valve
with 3 position pneumatic actuator
This manual is valid for the valve ordering numbers:
10836- . E28/48
10840- . E28/48
10844- . E28/48
10846- . E28/48
The respective product identification is given on each valve in the following or in a
similar way:
made in Switzerland
96
Fabrication No.:
patented
F10 – . . . . . / . .
108 . . – . . . . – . . . .
Explanation of symbols:
Read declaration carefully before you start any other
action!
Attention!
Product is in conformity with EC guidelines,
if applicable!
Disconnect electrical power and compressed air
lines. Do not touch parts under voltage!
Read these «Installation, Operating & Maintenance Instructions» and the enclosed «General
Safety Instructions» carefully before you start any other action!
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com
Installation, Operating, and Maintenance Instructions
ISO 9001
EN 29001
Series 10.8, DN 63 - 200 (2½" - 8")
Keep body parts and objects away from the valve
opening!
Hot surfaces; do not touch!
Loaded springs and/or air cushions are potential
hazards!
Wear gloves!
278737EB
2003-04-14
1/14
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Table of Contents
Related Manuals for VAT 10836 E28/48 Series
Summarization of Contents
Explanation of Symbols
Read Declaration Carefully
Read declaration carefully before starting any action.
General Attention Warning
General attention warning for potential hazards.
CE Conformity Declaration
Product is in conformity with EC guidelines.
Electrical Hazard Warning
Disconnect electrical power and compressed air lines.
Mechanical Hazard - Moving Parts
Keep body parts and objects away from the valve opening.
Hot Surface Warning
Warning about hot surfaces; do not touch.
Spring and Air Cushion Hazard
Loaded springs and air cushions are potential hazards.
Wear Gloves Recommendation
Recommendation to wear gloves.
Imprint and Copyright Information
Manufacturer Details
Details about the manufacturer, website, phone, and email.
Publisher and Editor Details
Information on the publisher and editor of the document.
Copyright and Usage Restrictions
Legal notice regarding reproduction and use of the document.
Product Usage and Technical Data
Intended Product Use
Specifies product usage for vacuum applications only.
Technical Specifications Overview
Detailed technical data including pressure, temperature, and ratings.
Installation into Vacuum System
Instructions for installing the valve into a vacuum system.
Admissible Forces and Moments
Specifies acceptable forces and bending moments on the valve body.
Connections and Electrical Setup
Compressed Air Connection Details
Details for connecting compressed air supply to the valve.
Electrical Connection and Wiring
Instructions for electrical connections and wiring solenoids/indicators.
Valve Operation Procedures
Normal Operation Modes
Describes normal opening and closing of the valve.
Failure Scenarios and Behavior
Explains valve behavior during compressed air or power failures.
Emergency Manual Actuation
How to manually operate the valve during a power failure.
Manual to 3-Position Actuator Conversion
Disassembly of Manual Actuator
Steps to disassemble the existing manual actuator.
Assembly of Actuator Unit A
Procedure for assembling the main actuator unit.
Assembly of 3-Position Pneumatic Actuator B
Steps to assemble the new 3-position pneumatic actuator.
Intermediate Position Adjustment
Adjusting with Solenoids
How to adjust intermediate position when solenoids are used.
Adjusting without Solenoids
How to adjust intermediate position without solenoids.
Carrier Nut Recapture Procedure
Procedure for recapturing the carrier nut if disengaged.
Maintenance Procedures
Preventive Maintenance Overview
Information on preventive maintenance requirements.
Actuator and Mechanism Replacement
Steps to replace the actuator or mechanism assembly.
Troubleshooting Common Issues
Valve Operation Problems
Solutions for valves not closing or opening properly.
Gate Leakage Diagnosis
Troubleshooting steps for leaks at the gate.
Body Leakage Diagnosis
Troubleshooting steps for leaks at the valve body.
Repairs and Warranty Information
Contacting VAT for Repairs
Information on how to contact VAT for repair services.
Product Warranty Terms
Details of the product warranty and its limitations.
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Questions and answers