–
Protective measures are installed on the system (e.g. flow control valve or
control valve, check valve, pressure limitation valve).
Cleaning the valve
•
Remove all transport packaging. The material used in the packaging has been
specifically chosen for its recyclability.
•
Traces of residual grease may be evident on the product due to the produc-
tion process used. Clean the valve immediately before installation.
Connecting the media line
NOTICE!
To eliminate direct access to the valve opening during operation, connect a line to
both ports, even if the valve is located at the end of the piping.
•
Screw the valve connections to the line.
–
Tightening torque: 10 Nm
Connect the operating medium line
1. Mount the fitting on the operating medium connection.
–
Max. permissible screw-in depth (
è
): 3 mm
2. Connect the operating medium line.
3. Mount the plug screw on the exhaust port.
Additional steps for ducted exhaust air:
1. Remove the plug screw at the exhaust port.
2. Connect the piping for the ducted exhaust air to the exhaust port.
–
Max. permissible screw-in depth (
è
): 3 mm
7
Commissioning
Requirements
–
Protective measures are installed on the system (e.g. flow control valve or
control valve, check valve, pressure limitation valve).
–
The valve is fully mounted and connected.
Checking operating conditions
WARNING!
Risk of injury from hot media under pressure.
Dependent on the medium and the operating conditions, pressure peaks that
exceed the permissible pressure range can develop in the system. The valve can
open accidentally, and medium can exit.
•
Do not exceed the maximum permissible medium pressure. In doing so, take
pressure peaks in the system into account.
•
Check operating conditions and critical limits
è
•
Check connection points for tightness.
•
Check compatibility of the devices in the system for maximum pressure (con-
sider pressure peaks). If necessary, adjust the application parameters.
Commissioning the valve
1. Supply medium.
2. Supply operating pressure to the valve.
Ä
The valve opens.
8
Operation
WARNING!
Risk of injury from hot media under pressure.
If the seal cartridge (shut-off element) leaks and the exhaust port is plugged (or
the ducted exhaust air is plugged or in the case of exhaust air in an equalising
volume), the flow medium can enter the operating medium.
•
Use only media that will not cause dangerous reactions if mixed.
WARNING!
Risk of injury due to hot surface.
The valve can become hot if the temperature of the medium is high.
•
Do not touch the valve during operation or immediately afterward.
•
Observe the operating conditions.
•
Comply with permissible critical limits.
•
Comply with maintenance conditions
è
Recommendation: Switch valve several times per day.
After longer idle times:
•
Actuate the valve several times and check for correct function.
9
Maintenance and care
WARNING!
Risk of injury from combustion and chemical burns.
The media in the piping system and the valve can be hot and under pressure.
Traces of medium can remain in the product and can escape when open or dis-
mantled.
•
Allow the valve and piping to cool and depressurize them.
•
Wear specified protective equipment.
Checking and cleaning the valve
•
Check product regularly from the outside for leakage and function.
•
Check plug screw and ducted exhaust air for passage. Remove blockages
•
Clean product regularly.
•
Comply with replacement interval of the spring, guiding band and piston seal:
max. 5 million switching cycles.
NOTICE!
Allow for ducted exhaust air when cleaning the outside.
•
Replace the plug screw with a threaded insert or connector. Observe the max-
imum permissible screw-in depth.
Checking and replacing the seal cartridge
NOTICE!
Seal cartridge may only be changed by qualified personnel following the assembly
instructions
è
Assembly instructions for seal cartridge.
The seal cartridge is subjected to mechanical loads and ageing. A damaged or
worn seal cartridge results in leakage.
•
Check and replace seals and seal cartridge regularly (intervals dependent on
the medium).
•
Replace seal cartridge and seals if they are damaged. Use a seal cartridge
with the same specification.
•
Comply with replacement interval of the seal cartridge: max.
½
½ million
switching cycles.
10
Fault clearance
Fault description
Cause
Remedy
Valve is blocked.
Clean valve or replace seal cart-
ridge.
Operating medium line is
blocked.
Clean or replace operating
medium line.
Shut-off element is stuck
together because the material
of the shut-off element is not
suited for the medium.
Replace product with a product
variant made of appropriate
materials.
Valve does not open or opens
too slowly.
Seal cartridge is faulty.
Replace seal cartridge.
Medium pressure is too high.
Reduce medium pressure.
Valve opens accidentally.
Seal cartridge is faulty.
Replace seal cartridge.
Operating pressure is still
present.
Shut off the operating pressure.
Valve does not close or closes
too slowly.
Seal cartridge is faulty.
Replace seal cartridge.
Leakage
Seal cartridge is faulty.
Replace seal cartridge.
Tab. 2
11
Disassembly
WARNING!
Risk of injury from combustion and chemical burns.
The media in the piping system and the valve can be hot and under pressure.
Traces of medium can remain in the product and can escape when open or dis-
mantled.
•
Allow the valve and piping to cool and depressurize them.
•
Wear specified protective equipment.
1. Depressurise the piping and the operating medium line.
2. Allow the valve and piping to cool.
3. Empty the piping and valve completely.
–
Make sure no one is located in front of the outlet opening.
–
Catch discharging media in a suitable container.
4. Disconnect the operating medium line from the valve.
5. Disconnect the piping connections and remove the valve.
12
Disposal
•
Observe the local regulations for environmentally friendly disposal.
•
Dispose of the product in an environmentally friendly manner. When doing
this, also take residual media into account (recycling of hazardous waste
where appropriate).
