Festo VZQA-C-M22C Series Guida all'installazione

Repair

instructions (en)

Pinch valve

VZQA-C-M22C

VZQAa_en

Imprint

Version:

VZQAa_en (03.2020)

©Festo SE & Co. KG

Postfach

D-73726 Esslingen

Germany

Editorial team:

Spare Part Documentation and

Support

Phone:

+49 / 711 / 347-0

Fax:

+49 / 711 / 347-2144

Email:

[email protected]

Internet:

http://www.festo.com

Foreword

These repair instructions are valid for the pinch valve listed on the title page to

the exclusion of any liability claims.

The general terms and conditions of business (Allgemeinen Geschäftsbedingun-

gen - AGB) of Festo SE & Co. KG apply; these can be read on the Festo website

(www.festo.com).

Differences compared to the descriptions in these repair instructions may arise

depending on the design and/or modication status of the pinch valve. The

user must check this prior to carrying out the repair and take the deviations into

consideration if necessary.

These repair instructions have been prepared with care.

Festo SE & Co. KG does not, however, accept liability for any errors in these

repair instructions or their consequences. Likewise, no liability is accepted for

direct or consequential damage resulting from incorrect use of the products.

The relevant regulations on occupational safety, safety engineering, and

interference suppression as well as the stipulations contained in these repair

instructions must be observed when working on the products.

Reproduction, distribution or sale of

this document or communication of

its contents to others without express

authorisation is prohibited. Offenders

will be held liable for damages. All

rights reserved in the event that a

patent, utility model or design patent

is registered.

All product designations and brand

names used are the property of the

owners and not explicitly identied

as such.

All technical data are subject to

change according to technical

updates.

2 / 22 VZQAa_en

Table of Contents

1 Important information 4

1.1 About these repair instructions 4

1.2 Symbols used 4

1.2.1 Danger categories 4

1.2.2 Repair steps 4

1.2.3 Cleaning and greasing 5

1.3 Text designations used in these repair instructions 5

1.4 General lists 5

1.5 Tools 5

2 General safety instructions and information 6

2.1 General safety instructions 6

2.2 General information 6

3 Sizes, part numbers and component lists with bills of material 7

3.1 Components overview VZQA-C-M22C-6-… 8

3.1.1 Parts list VZQA-C-M22C-6-… 9

3.2 Components overview VZQA-C-M22C-15-… 10

3.2.1 Parts list VZQA-C-M22C-15-… 11

4 Repair steps 12

4.1 Dismantling 12

4.2 Assembly 14

5 Start-up 20

3 / 22VZQAa_en

1 Important information

1.1 About these repair instructions

This document contains important information about professional repair of the pinch valve of the type VZQA.

Before carrying out a repair, these repair instructions must be read in full and followed.

Other documentation for this product:

– Operating instructions (www.festo.com/sp)

– Spare parts documentation (www.festo.com/spareparts)

1.2 Symbols used

1.2.1 Danger categories

The following symbol identies text passages which draw attention to specic hazards.

Warning

Marking special information

The following symbols identify text passages which contain special information.

Note

1.2.2 Repair steps

Familiarise yourself with the meaning of the symbols before starting the repair work.

Reference arrow

Symbol indicating the individual components to be noted.

Linear movement arrow

Carry out a linear movement.

Reference to repair steps

Follow the given repair steps.

Attention

Pay particular attention to notes and information.

Visual inspection

Perform a visual inspection.

Tools

Use suitable tools.

Functional test / start-up

Follow the functional test /start-up information in the brief instructions (www.festo.com).

4 / 22 VZQAa_en

1.2.3 Cleaning and greasing

Cleaning

The components must be thoroughly cleaned to remove all foreign particles, machining residues and

old lubricants before they are greased.

Clean with a soft, lint-free cloth and non-abrasive cleaning agents. Check the compatibility of the clean-

ing agent with the materials to be cleaned.

Extremely thin grease lm

A barely continuous lm of grease covers the bearing surface so that a continuous lm of grease exists;

however, there is no detectable darkening due to the grease colour.

Recommendation:

Apply the grease with a paint brush, a ne bristle brush or similar. Remove surplus grease by wiping off

once with the respective system components.

Thin grease lm

A lm of grease covers the bearing surface so that a continuous lm of grease exists and the grease

colour darkens the surface slightly.

Recommendation:

Apply the grease with a paint brush, a ne bristle brush or similar.

Thin grease lm outside

A lm of grease covers the outer surface so that a continuous lm of grease exists and the grease colour

darkens the surface slightly.

Recommendation:

Apply the grease with a paint brush, a ne bristle brush or similar.

Grease reservoir

Grease quantity enclosed between two sealing rings or in the enclosed ring volumes.

1.3 Text designations used in these repair instructions

1.4 General lists

Reference to further information.

Underlined, blue text indicates a cross-reference or hyperlink that you can click on in the PDF.

1.5 Tools

The following standard tools are required for the repair:

– Open-ended spanner

– Torque wrench

5 / 22VZQAa_en

2 General safety instructions and information

2.1 General safety instructions

Warning

Read and follow all safety instructions and information. Failure to comply with these safety instructions and informa-

tion can result in serious injuries.

Note

To achieve ATEX conformity, the toothed discs must be replaced each time after loosening the corresponding screws or

bolts. Note the given tightening torque when screwing back in.

– Repair work may only be carried out by authorised and trained personnel acting in accordance with the requirements

in these repair instructions and the device-related documentation.

– Pay attention to cleanliness while repairing the pinch valve. Do not allow dirt particles to get into the pinch valve.

– The pinch valve must be shut down before carrying out repair work.

– Before carrying out the repair work, any attachments present must be dismantled.

– Use original spare parts only for the repair.

– Wear the necessary personal protective equipment.

– In the event of damage caused by

– unauthorised manipulation,

– non-intended use or

– use of non-original spare parts

all warranty and liability claims against the manufacturer expire.

– The technical documentation required for installation and start-up (functional test) must be available.

2.2 General information

– Standard tools are needed to repair the pinch valve, which must be available in a service workshop (Chapter 1.5

on page 5).

– Components and equipment replaced during repair must be disposed of in accordance with the relevant local

environmental protection regulations.

– Where possible the repair should be carried out on a stable and at work surface with space for small parts.

6 / 22 VZQAa_en

3 Sizes, part numbers and component lists with bills of material

The component lists with corresponding bills of materials for the following quarter-turn actuators are listed on the follow-

ing pages:

Size Part number Components list Bill of materials

VZQA-C-M22C-6 3174282

Chapter 3.1 on page 8 Chapter 3.1.1 on page 9

VZQA-C-M22C-15 Chapter 3.2 on page 10 Chapter 3.2.1 on page 11

The following diagrams are intended only to provide an overview of the individual components. To order spare and

wearing parts, and sets of wearing parts please use the online spare parts catalogue on the Festo website

(www.festo.com/spareparts).

7 / 22VZQAa_en

3.1 Components overview VZQA-C-M22C-6-…

8 / 22 VZQAa_en

No. Designation, type

1 Cover S5, stainless steel V4

2 Cover S1, stainless steel V4

3 Cover G, aluminium

4 Cover G, stainless steel V4

5Cover T, aluminium

6 Cover T, stainless steel V4

7 Plug screw

8 O-ring, 28.3×1.78-N-FPM70

9 Compression spring

10 Guiding Band

11 Return piece

12 Guide tube

13 Pinch valve sleeve

14 Stamp

15 Seal cartridge

16 O-ring, 14×1.78-N-FPM70

17 Piston

18 Magnet

19 Piston

20 Sealing ring, SBFC1-20X32×6.5-FPM

21 Pipe, aluminium

22 Pipe, stainless steel V2

23 Lubricating grease, LUB-KL5

3.1.1 Parts list VZQA-C-M22C-6-…

9 / 22VZQAa_en

3.2 Components overview VZQA-C-M22C-15-…

10 / 22 VZQAa_en

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