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VAT 021 Series - User Manual

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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
1/12
Rectangular Gate Valve MONOVAT classic
with pneumatic actuator
double acting
T
he respective product identification is marked on each valve in the following or in a similar way :
made in Switzerland
Fabrication No.: patented
. .
021 . .
- . . . . - . . . . / . .
A - . . . . . .
Read these «Installation, Operating and Maintenance Instructions» and the enclosed
«General Safety Instructions» carefully before you start any other action.
Actuator:
24 ... w/o solenoid
44 ... with solenoid
Size
10 ... 46 x 236
12 ... 50 x 336
01 ... 25 x 160
02 ... 25 x 210
03 ... 25 x 265
04 ... 25 x 420
05 ... 51 x 160
06 ... 51 x 210
07 ... 51 x 265
08 ... 51 x
420
09 ... 32 x 222
Body material:
A ...
aluminum
E ...
stainless steel
4 character
option code
0 2 1 1 0 - B A 2 4 - 0001
Flange type
A
... Same size of opening on seat side and rear side.
With bonnet flange, gate service via bonnet flange.
B
... Opening on rear side larger than on seat side.
With bonnet flange, gate service via bonnet flange.
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VAT 021 Series Specifications

General IconGeneral
BrandVAT
Model021 Series
CategoryControl Unit
LanguageEnglish

Summary

Product Information and Safety

Product Identification and Specifications

Details product marking, size, actuator, body material, and flange types for the MONOVAT classic valve.

Important Safety Instructions

Emphasizes reading installation and safety instructions before operation and handling potential hazards.

Intended Use and Technical Data

Intended Product Use

Defines the product application scope for vacuum applications and limitations.

Technical Specifications Overview

Lists key technical parameters like leak rate, pressure range, cycle life, and operating temperatures.

Material Specifications and Operational Parameters

Material Details and Ratings

Specifies materials for valve body, gate, bellows, and seals, along with operational limits.

Operational States and Timing

Describes valve behavior during power/air failures and timing for closing/opening.

Installation Procedures

General Installation Guidelines

Covers valve protection, attachment to system, and handling of connections.

Compressed Air and Electrical Connections

Details air pressure requirements, connection types, and electrical wiring diagrams.

Operational Guidelines and Failure Modes

Normal Operation and Admissible Temperature

Explains standard pneumatic operation and admissible temperature limits.

Handling Compressed Air and Power Failures

Describes valve behavior and necessary actions during compressed air or power loss.

Emergency Operation

Manual Actuation During Power Failure

Provides instructions for operating the valve using push-buttons when electrical power is unavailable.

Preventive Maintenance and Component Replacement

Preventive Maintenance Overview

Outlines maintenance scope, recommended spare parts, and general cleaning procedures.

Component Replacement Procedures

Details the steps for replacing the gate, bellows assembly, and piston seals.

Adjustments and Lubrication

Position Indicator and Actuator Adjustment

Covers replacing the position indicator and adjusting actuator compression and parallelism.

Valve Lubrication Guidelines

Specifies lubricants for different valve parts and relubrication intervals.

Spare Parts Catalog

Seal Kits, Lubricants, and Assemblies

Lists ordering numbers for seal kits, lubricants, and spare assemblies.

Gate and Seal Part Numbers by Size

Provides part numbers for gate, bonnet, and O-rings based on valve size and material.

Component Specifics and Solenoid Parts

SEMI Size Gate Material Options

Details gate materials and sealing options for SEMI standard valve sizes.

Solenoid Kit Components

Lists individual components and ordering numbers for the solenoid kit.

Troubleshooting, Repairs, and Warranty

Troubleshooting Common Valve Issues

Provides solutions for common problems like valve not closing or leaking.

Repair and Warranty Information

Outlines procedures for repairs and the product warranty terms.

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