Type 2060

4 | 25

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2.

Control functions

WARNING

Risk of damage due to bursting pipes and bursting equipment when the flow is above the seat.

In the case of liquid mediums, water hammer can occur causing pipes and the device to burst.

Do not use valves with flow above the seat for liquid mediums..

Symbol

Description

Flow direction below seat for liquids, steam and gases

2 (P)

1 (A)

Control function A (CF A)

Pneumatically operated 2/2-way on/off valve

Flow direction below seat

Normally closed by spring force



2 (P)

1 (B)

Control function B (CF B)

Pneumatically operated 2/2-way on/off valve

Flow direction above seat

Normally opened by spring force



Flow direction above seat for steam and gases

2 (A)

1 (P)

Control function A (CF A)

Pneumatically operated 2/2-way on/off valve

Flow direction above seat

Normally closed by spring force

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