Samson GRAPHITE M32 Instrukcja Użytkownika Pobierz pdf (Strona 7)

2. Installation

Valve and actuator are assembled by the

manufacturer.

For more details on the actuator used,

please refer to the corresponding mounting

and operating instructions.

2.1 Mounting position

The valve can be mounted in any position.

However, you are required to strictly ob-

serve the limitations inherent to the used ac-

tuator type.

CAUTION!

The valve must be installed free of stress

and free of excessive vibrations. If necess-

ary, support the pipelines near the connec-

tions. Do not install supports on the valve or

on the actuator. Thoroughly flush the

pipeline prior to installation of the valve.

2.2 Strainer, bypass

We recommend that you install a SAMSON

Type 2 Strainer upstream of the valve.

In addition to a bypass line, shut-off valves

should be installed both upstream of the

strainer and downstream of the control

valve so that the plant need not be shut

down for maintenance routines.

3. Operation

Operating instructions depend on the actua-

tor used. Please refer to the mounting and

operating instructions for the corresponding

actuator.

4. Maintenance  replacing parts

The control valve is subject to wear and

tear, especially at the seat, plug, metal bel-

lows and packing box.

Depending on the application conditions

that prevail, the valve must be inspected at

appropriately scheduled intervals to prevent

any problems before they occur.

If external leakage occurs, the metal bellows

or packing box may be damaged. If the

valve does not seal properly, this may be

because tight shut-off is prevented by dirt or

other foreign particles present between the seat

and plug or due to a damaged seating surface.

It is recommended that the parts be

removed, thoroughly cleaned and replaced

as necessary.

CAUTION!

If you intend carrying out mainten-

ance work on the valve, first depress-

urize the relevant plant section and,

depending on the process medium,

drain it as well.

Let the plant section cool down to

reach ambient temperature, if

necessary.

Prior to starting any work, discon-

nect the electric or pneumatic con-

trol signal for the actuator. On pneu-

matic actuators, additionally remove

the signal pressure line.

As the process medium cannot drain

completely out of the valve, be aware

that some of the process medium

could still be trapped in the valve.

We recommend that you remove the

valve from the pipeline.

EB 8131/8132 EN

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Installation

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