550
32 / 44
8 Manufacturer’s information
8.1 Transport
G Only transport the valve by suitable
means. Do not drop. Handle carefully.
G Dispose of packing material according
to relevant local or national disposal
regulations / environmental protection
laws.
8.2 Delivery and performance
G Check that all parts are present and
check for any damage immediately upon
receipt.
G The scope of delivery is apparent from
the dispatch documents and the design
from the order number.
G The performance of the valve is checked
at the factory.
G The valve's delivery condition:
Control function: Condition:
1 Normally closed (NC) closed
2 Normally open (NO) open
3 Double acting (DA) undefined
8 Double acting (normally open) open
8.3 Storage
G Store the valve free from dust and
moisture in its original packaging.
G Avoid UV rays and direct sunlight.
G Maximum storage temperature: 60 °C.
G Solvents, chemicals, acids, fuels or
similar fluids must not be stored in the
same room as valves and their spare
parts.
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 550 pneumatically operated 2/2-
way valve is a metal angle seat globe valve
with a straight through body and a piston
actuator. The valve bodies are available in
various designs as shown in the data sheet.
An optical position indicator is standard for
NC control function (optional for NO and
DA control functions). Diverse accessories
are available, such as electrical position
indicators, stroke limiters, electro-pneumatic
positioners and process controllers.
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.
9.1 Special venting
A special air vent for the actuator spring side
was designed (e.g. for the food industry)
using a check valve. This prevents ingress
of dirty water and cleaning media into the
actuator housing. This is an option for valves
available ex works (see chapter 7 "Order
data" section "K number").
To Next Page
Loading...
