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554
8.4 Tools required
G The tools required for installation and
assembly are not included in the scope
of delivery.
G Use appropriate, functional and safe
tools.
9 Functional description
The GEMÜ 554 pneumatically operated 2/2-
way valve is a metal angle seat globe valve
with a straight through body and a plastic
piston actuator. The valve bodies and the
seat seals are available in various designs
as shown in the data sheet.
Diverse accessories are available, such as
electrical position indicators, pilot valves and
pneumatic or electro-pneumatic positioners
and process controllers. An integral optical
position indicator is standard.
Actuator size B:
The seat seal is made of PFA or NBR.
Actuator sizes 0, 0K, 1, 1K, 2, 2K, 3, 3L, 4,
4L:
The valve spindle is sealed by a self-
adjusting gland packing providing low
maintenance and reliable valve spindle
sealing even after a long service life. The
wiper ring fitted in front of the gland packing
protects the seal against contamination and
damage.
10 Construction
A
Control medium
connector 2
Control medium
connector 4
Construction
1 Valve body
A Actuator
10.1 Type plate
Design in accordance with order data
Device version
12103529 I 0001
Item number
Traceability number
Serial number
Year of
manufacture
Device-specific data
The month of manufacture is encoded in
the traceability number and can be obtained
from GEMÜ.
The product was manufactured in Germany.
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