Replacing The Seat And Plug; Replacing The Actuator's Operating Diaphragm - Samson 42-36 Mounting And Operating Instructions

Flow regulator self-operated regulators

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9.3.2

Replacing the seat and

plug

To replace seat and plug, contact

SAMSON's After-sales Service.

Further information is available in Annex

('After-sales service').

EB 3015 EN

9.3.3

Replacing the actuator's

operating diaphragm

NOTICE

Do not exchange the operating diaphragm

in an FDA-compliant regulator version.

SAMSON's After-sales Service can support

you to perform such service work.

Tip

The associated order number is written on

the actual operating diaphragm.

Î See Fig. 9-1 and Fig. 9-2

Removing the operating diaphragm

1. Put the regulator out of operation (see

the 'Decommissioning' section).

2. Unscrew the control line (17).

3. Unscrew the coupling nut (11) of the dia-

phragm actuator from the valve. Remove

the actuator.

4. Clamp the coupling nut (11) into a suit-

able fixture.

5. Unscrew nuts and bolts (15) from the ac-

tuator. Remove the actuator case.

6. Unscrew the diaphragm plate nut (17)

and remove the operating diaphragm

(12) from the diaphragm plate (16).

Servicing

9-7

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