Festo DPA-***-10-***-CRVZS Series Bedienungsanleitung

en Operating

instructions

8074546

2017-07a

[8074548]

Pressure booster combination

DPA-CRVZS

2Festo – DPA-CRVZS – 2017-07a

Original instructions

DPA-CRVZS-EN

Identification of hazards and instructions on how to prevent them:

Danger

Immediate dangers which can lead to death or serious injuries

Warning

Hazards that can cause death or serious injuries

Caution

Hazards that can cause minor injuries

Other symbols:

Note

Material damage or loss of function

Recommendations, tips, references to other documentation

Essential or useful accessories

Information on environmentally sound usage

Text designations:

 Activities that may be carried out in any order

1. Activities that should be carried out in the order stated

– General lists

èResult of an action/References to more detailed information

DPA-CRVZS

Festo – DPA-CRVZS – 2017-07a English 3

English – Pressure booster combination DPA-CRVZS

Table of contents

1 About this document 5......................................................

2 Safety 5..................................................................

2.1 Safety instructions 5........................................................

2.2 Use for intended purpose 5...................................................

2.2.1 Areas of application 5...............................................

2.3 Foreseeable misuse 6.......................................................

2.4 Training of specialized personnel 6.............................................

3 Further information 6.......................................................

4 Service 6.................................................................

5 Product overview 6.........................................................

5.1 Function 6.................................................................

5.1.1 Operational principle 6..............................................

5.1.2 Switching function 6................................................

5.2 Design 7..................................................................

5.2.1 Product design 7...................................................

6 Transport 8...............................................................

7 Storage 8.................................................................

8 Mounting 9...............................................................

8.1 Preparation 9..............................................................

8.2 Mechanical installation 9.....................................................

8.2.1 Alignment 9.......................................................

8.2.2 Mounting 9.......................................................

8.3 Pneumatic installation 10.....................................................

DPA-CRVZS

4 Festo – DPA-CRVZS – 2017-07a English

9 Commissioning 11...........................................................

9.1 Switching on 11.............................................................

9.2 Setting the outlet pressure 12..................................................

9.3 Switching off 13.............................................................

10 Maintenance and care 14.....................................................

10.1 Visual and audible check 14...................................................

10.2 Functional test 14...........................................................

10.3 Draining condensate 14.......................................................

11 Disassembly 15.............................................................

12 Fault clearance 15...........................................................

13 Technical data 16............................................................

DPA-CRVZS

Festo – DPA-CRVZS – 2017-07a English 5

1 About this document

For all available product documentation èwww.festo.com/pk

The combination of DPA pressure booster and CRVZS air reservoir is designated as a product in these

operating instructions.

 Read the operating instructions carefully before starting all work on the product.

2 Safety

2.1 Safety instructions

 Take into consideration the legal regulations for the respective destination.

 Observe product labelling.

 Before working on the product, switch off the power supply and secure it against being switched on

again.

 Use the product only within the defined values (è 13 Technical data).

 Protect the product during operation from damaging influences.

Damaging influences include grinding dust, glowing chips or sparks.

2.2 Use for intended purpose

The DPA pressure booster has been designed for increasing the pressure in compressed air lines up to a

maximum outlet pressure of 16 bar.

The air reservoir CRVZS has been designed for saving air (fluid of group 2 as per EU Pressure Equipment

Directive).

2.2.1 Areas of application

– For increasing the pressure up to double the inlet pressure of 8 bar

– For the occasional extraction of compressed air

– Compensation of pressure fluctuations

– For the supply of quick-pulsing drives

– For the compensation of sudden air consumption

DPA-CRVZS

6 Festo – DPA-CRVZS – 2017-07a English

2.3 Foreseeable misuse

– For the continuous extraction of compressed air

Note

Severe wear to seals and the drive piston.

 Avoid operation without pauses between cycles.

 Pressure booster combinations are no replacement for compressors.

2.4 Training of specialized personnel

Only qualified personnel may perform installation, commissioning, maintenance and disassembly of the

product. The specialized personnel must be familiar with the installation and operation of electrical and

pneumatic control systems.

3 Further information

Accessories èwww.festo.com/catalogue.

4 Service

Contact your regional Festo contact person if you have technical questions èwww.festo.com.

5 Product overview

The product is a combination of a DPA pressure booster and a CRVZS air reservoir. The air reservoir is

filled to network pressure continuously via a bypass with check valve. Two pressure gauges are there to

monitor supply and outlet pressure.

5.1 Function

A pneumatic valve conducts the inlet pressure, alternately into two compression chambers. The com

pression chambers generate an outlet pressure up to max. double the value of the inlet pressure. This

increased outlet pressure is stored in the CRVZS and is available for compressed air applications.

5.1.1 Operational principle

The air pressure is increased by a pressure ratio via a double piston.

5.1.2 Switching function

As soon as the inlet pressure is switched on at pneumatic connection P1, the DPA starts automatically.

When the set outlet pressure is reached, the pressure booster stops operating, but restarts automatic

ally as soon as the outlet pressure drops due to application operation.

DPA-CRVZS

Festo – DPA-CRVZS – 2017-07a English 7

5.2 Design

5.2.1 Product design

1CRVZS air reservoir

2CRVZS connecting tubing to DPA pres

sure booster (connection 2)

3DPA pressure booster

4Adapter plate with silencers

5Profile plate

6Pneumatic valve with manual override

7Pressure displays for ports P1 and P2

8Rotary knob on the pressure regulator for

port P2

9Pneumatic port P1 (inlet)

aJ Bypass

aA Pneumatic connection P2 (outlet) with coup

ling socket KD4

Fig. 1

DPA-CRVZS

8 Festo – DPA-CRVZS – 2017-07a English

6 Transport

Warning

Loads which suddenly fall down may cause injury to people.

 Take the product's weight into account. Depending on the design, the DPA-CRVZS

weighs up to 30 kg.

 Do not use the rotary knob on the pressure regulator 8as a transport support.

The weight of the product may cause the rotary knob to detach from its support.

7 Storage

 Remove the packing with the exception of the adhesive labels on the supply ports (to prevent dirt

from entering).

The packaging is intended for recycling (exception: oil paper = residual waste).

DPA-CRVZS

Festo – DPA-CRVZS – 2017-07a English 9

8 Mounting

8.1 Preparation

Before fitting:

 Remove the rubber buffers from the bottom of the profile plate.

 Switch off the complete system to depressurise it.

8.2 Mechanical installation

Note

The manufacturing process leaves a layer of oxide on the inside of the reservoir caps of

the air reservoir CRVZS.

 For sensitive applications, use suitable filters between the air reservoir CRVZS and

other downstream-switched pneumatic devices.

8.2.1 Alignment

 Ensure that the screwing points for the profile plate are on the same level.

With pressure booster combinations DPA-CRVZS5/10/20:

 Align the product so that the condensate drain faces downwards.

8.2.2 Mounting

 Secure product by the grooves in the profile plate on the system or on the machine frame.

Mounting attachments from the profile kit system 5 for machine stands

– Slot nuts IPM-VN-05-15/M5-ST

– Cover caps for profile plate IPM-AN-05-20X40-PA

This accessory can be obtained from Festo Sales, quoting Mechanical Components.

Additional accessories:

–M5 machine screws

– Strength: min. 8.8

–Screw length: Frame thickness + 6 mm screw-in depth

–Tightening torque: 5 Nm±10%

DPA-CRVZS

10 Festo – DPA-CRVZS – 2017-07a English

8.3 Pneumatic installation

Note

High pressure differential between ports P1 and P2 causes high air consumption by the

product.

 Limit network pressure at port P1 to 8 bar without additional pressure regulators.

 Use short lines at port P1.

 Connect hoses and plug connections to pneumatic

ports P1 and P2.

 For port P2 use a KS4 coupling connector.

Exhausting is performed by the pressure regulator.

Fig. 2

– Controller failsafe LRVS-D-MINI, LRVS-D-MIDI

– Padlock LRVS-D

Accessories (èwww.festo.com/catalogue)

When using a pressure-buildup valve in the system

1. Connect a 3-way on/off valve HE-…-D or HEE-…-D at

the inlet side before portP1 between pressure

buildup valve and pressure booster.

2. Connect a 3-way on/off valve HE-…-D or HEE-…-D at

the outlet side after portP2.

Exhausting is performed by the pressure regulator.

Fig. 3

With pressure booster combinations

DPA-…-CRVZS10/20:

1. Connect a 3-way HE-…-D or HEE-…-D on/off valve at

the inlet side before port P1.

2. Connect a 3-way on/off valve HE-…-D or HEE-…-D at

the outlet side after portP2.

3. Connect a third 3-way HE-…-D or HEE-…-D on/off

valve between the DPA pressure booster and the

CRVZS air reservoir.

This enables larger reservoir volumes to be ex

hausted more rapidly.

Fig. 4

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