Econ 430, 431, 432, 433, 434 Installation & Operation Manual

Installation & Operation Manual

Proven Quality since 1892

ECON bellows seal valves Fig. 430, 431, 432, 433, 434 www.eriks.com
Rev.3

ECON BELLOWS SEAL VALVES

Fig. 430, 431, 432, 433 & 434

Scan for manual

Operating and Instruction Manual for Bellows seal valves:
Fig. 431, 431, 432, 433 & 434

Installation & Operation Manual

Proven Quality since 1892

ECON bellows seal valves Fig. 430, 431, 432, 433, 434 www.eriks.com
Rev.3

Content

1. ERIKS operating companies

2. Product description

3. Requirements for maintenance staff

4. Transport and storage

5. Function

6. Application

7. Installation

8. Maintenance

9. Service and repair

10. Features

11. Options

12. Troubleshooting

13. Removal

1. ERIKS operating companies

ECON bellows seal valves are being delivered by several ERIKS operating companies on a
worldwide basis. In this manual these will be referred to as ‘ERIKS’, the individual terms of
delivery of the ERIKS operating company having executed the order are applicable.

2. Product description
The ECON bellows seal valves are designed according EN-13789 and information in our latest
catalogue or see our website www.eriks.com and should be used in accordance with the
applicable pressure-temperature rating as stated on this website. ECON bellows seal valves are
provided with casted markings according to EN 19. The marking makes the identification of the
valve easier and contains:

- size (DN)

- pressure rating class

- body material marking

- arrow, indicating the medium flow direction
heat numbers (when required)

- CE marking when applicable

- tag plate

- ECON logo

3. Requirements for maintenance staff

The staff assigned to assembly, operating and maintenance tasks should be qualified to carry out
such jobs and in any circumstance, ensure personal safety

4. Transport and storage

Transport and storage should always be carried out with the discs complete closed and the valve
should be protected against external forces, influence and destruction of the painting layer as well.
The purpose of the painting layer is to protect the valve against rust, during transport and storage.
The valves should be stored in an unpolluted space and should also be protected against all
atmospheric circumstances. There should be taken care of the temperature and humidity in the
room, in order to prevent condensate formation.
It is not allowed to fit lifting devices to connection holes, handwheel or stem.

5. Function

ECON bellows seal valves are designed to stop the flow of a medium. The bellow gives a fully
sealed stem connection with zero leakages acc. to emission requirements of TÜV. The valve is
closed by turning the hand wheel clockwise; don’t use tools to increase the torque on the hand
wheel.

Installation & Operation Manual

Proven Quality since 1892

ECON bellows seal valves Fig. 430, 431, 432, 433, 434 www.eriks.com
Rev.3

6. Application

ECON bellows seal valves are widely used for steam, cold and hot water, thermal oil, air, gasses,
etc. for shut off or connection of pipeline. The valves are designed for standard operating
conditions. For the use of extreme conditions e.g. aggressive or abrasive media, it is
recommended to mention this at the ordering stage, to verify whether the valve is suitable. The
installation designer is responsible for the globe valve selection, suitable for the working
conditions. The valves are unsuitable, without written permission of an ERIKS company, to apply
for hazardous media as referred into Regulation (EC) No 1272/2008.

7. Installation

During the assembly of the standard ECON bellows seal valves, the following rules should be
observed:

- the valves should be checked before installation if they have not any defects caused by
transport and/or storage.

- make sure that the applied valves are suitable for the working conditions, medium used in
the plant and the right system connections, according to pressure and temperature limits.

- protective hole plugs must be removed

- valves with fixed disc may be installed in any position but preferred is with the hand wheel
in upright position.

- valves with SDNR disc with spring may only be installed in horizontal pipelines with the
hand wheel upwards and may only be installed in vertical pipelines with a rising flow.

- valves with balancing disc may only be installed in horizontal pipelines with the hand
wheel upwards.

- during fitting, the proper flow direction has to be considered.

- the interior of the valve and pipeline must be free from foreign particles.

- the valve should be assembled in the pipeline in closed position, for a correct functioning,
the valve must be stress free mounted between the flanges, supports must be arranged to
prevent any additional stress, caused by the weight of the valve or the pipeline.

- bolted joints on the pipeline must not cause additional stress resulted from excessive
tightening, user shall select proper bolts and gaskets according the working temperature,
working pressure and medium.

- steam pipelines should be fitted in such a way to avoid condensate collection; in order to
avoid water hammer steam traps should be applied.

- for easy operating, the clear distance around the hand wheel, shall not be less than
100MM

- before plant start-up, especially after repairs carried out, flash out the pipeline.

During the assembly of ECON bellows seal valves with balancing disc, the following extra rules
should be observed:

- standard with balancing disc from size DN200 and larger

- there should be extra taken care of the flow direction marked on the valve; balancing
valves must have the flow direction above the disc. This is the opposite direction of the
flow direction of standard disc executions as flat disc, throttling disc and loose disc!!

Example of balancing disc