ARI Armaturen APN 40 User Manual

Operating and installation instructions

Automatic air vent

(PN16 - 40)

PN16 / PN25 / PN40

- with flanges (series 656....1)

- with screwed sockets (series 656....2)

- with socket weld ends (series 656....3)

- with butt weld ends (series 656....4)

Contents

1.0 General information on operating

instructions.................................................2-2

2.0 Notes on possible dangers.........................2-2

2.1 Significance of symbols ...................................... 2-2

2.2 Explanatory notes on safety information............. 2-2

3.0 Storage and transport ................................2-2

4.0 Description...................................................2-3

4.1 Scope of application..................................... .... ... 2-3

4.2 Operating principles......................................... ... 2-3

4.3 Diagram..................... ... ... ... .... ... .......................... 2-4

4.4 Technical data - remarks..................................... 2-5

4.5 Marking ................. ... ... ... ... .... ... ... ....................... 2-5

5.0 Installation....................................................2-5

5.1 General notes on installation............................... 2-5

5.2 Installation instructions for welding ..................... 2-6

5.3 Controller adjustment......... .... ... ... ... .... ... ... ... .... ... 2-6

5.4 Steam trap testing through ultrasonic

measurement...................................................... 2-6

5.5 Installation position.................... ... ... .... ... ... ... .... ... 2-6

6.0 Putting the valve into operation ................ 2-7

7.0 Care and maintenance................................ 2-7

7.1 Cleaning / replacing controller assembly............. 2-7

7.2 Option drip pipe with union joint ......................... 2-8

7.3 Tightening torques...............................................2-8

8.0 Troubleshooting..........................................2-9

9.0 Troubleshooting table ................................ 2-9

10.0 Dismantling the valve or the body ........ 2-10

11.0 Warranty / Guarantee..............................2-10

12.0 EC declaration of conformity................. 2-11

Rev. 0040807004 2714 englisch

Operating and installation instructions

Automatic air vent

1.0 General information on operating instructions

These operating instructions provide information on mounting and maintaining the fittings.
Please contact the supplier or the manufacturer in case of problems which cannot be
solved by reference to the operating instructions.

They are binding on the transport, storage, installation, start-up, operation, maintenance
and repair.
The notes and warnings must be observed and adhered to.

- Handling and all work must be carried out by expert personnel or all activities must be
supervised and checked.

It is the owner’s responsibility to define areas of responsibility and competence and to
monitor the personnel.

- In addition, current regional safety requirements must be applied and observed when
taking the fittings out of service as well as when maintaining and repairing them.

The manufacturer reserves the right to introduce technical modifications at any time.
These Operating Instructions comply with the requirements of EU Directives.

2.0 Notes on possible dangers

2.1 Significance of symbols

ATTENTION !

. . .

Warning of general danger.

2.2 Explanatory notes on safety information

In these Operating and Installation Instructions dangers, risks and items of safety
information are highlighted to attract special attention.

Information marked with the above symbol and “ATTENTION!” describe practices, a failure
to comply with which can result in serious injury or danger of death for users or third parties
or in material damage to the system or the environment. It is vital to comply with these
practices and to monitor compliance.

All other information not specifically emphasised such as transport, installation, operating
and maintenance instructions as well as technical data (in the operating instructions,
product documentation and on the device itself) must also be complied with to the fullest
extent in order to avoid faults which in turn can cause serious injury to persons or damage
to property.

3.0 Storage and transport

ATTENTION !

- Protect against external force (like impact, vibration, etc.).

- Valves must not be used to take external forces, e.g. they are not designed for
use as climbing aids, or as connecting points for lifting gear.

- Suitable materials handling and lifting equipment should be used.
See catalog sheet for weights.

- At -20°C to +65°C.

- The paint is a base coat to protect against corrosion during transportation and storage.
Do not damage paint protection.

Page 2-2 Rev. 0040807004 2714

Operating and installation instructions

Automatic air vent

4.0 Description

4.1 Scope of application

Automatic air vents with level regulation are used for the de-aeration and venting of pipeline
systems.

ATTENTION !

- Refer to the data sheet for applications, limits on use and possibilities.

- Certain media require or preclude the use of special materials.

- The valves are designed for standard operating conditions. If conditions exceed
these requirements, e.g. aggressive or abrasive media, the operator should
state the higher requirements when ordering.

- Valves made from grey cast iron are not authorised for use in systems subject
to TRD 110.

The information complies to the Pressure Equipment Directive 97/23/EC.
It is the responsibility of the machine planner to ensure compliance.
The special markings on the valve must be taken into account.

Refer to the catalogue sheet to see which materials are used in standard versions.
Please contact the supplier or the manufacturer if you have any questions.

4.2 Operating principles

(refer to Fig. 3 page 8)
Deaeration and venting is controlled by a swivel-mounted ball float (Pos. 24.16).
As the automatic air vent is installed at the highest point of the pipeline system or vessel,

any air in the pipeline system or vessel is led to the automatic air vent.
As long as no liquid flows into the automatic air vent, the float controller (Pos. 24) stays

open, and air is discharged.
If liquid enters the automatic air vent, the ball float (Pos. 24.16) rises with the liquid level

and the valve plug (Pos. 24.4) seals the outlet of the controller (Pos. 24). The pipeline
system or vessel is closed to the outside. No liquid can escape from the system via the
automatic air vent.

If the liquid in the pipeline system or vessel falls, the ball float (Pos. 24.1) drops down and
the controller orifice is opened.

For increased venting power use a version with built-on venting valve.

Rev. 0040807004 2714 Page 2-3

4.3 Diagram

aeration
venting

PN40

aeration
venting

PN40

Operating and installation instructions

Automatic air vent

Fig. 1: Automatic air vent - series 656 PN16-25

Fig. 2: Automatic air vent - series 656 PN16-25

For higher performance with mounted vacuum breaker series 655

Refer to the data sheet for information about materials with designations and figure numbers.

Page 2-4 Rev. 0040807004 2714