EM-Technik GmbH - Industriestraße 2 - 67133 Maxdorf - Germany
[email protected]
www.em-technik.com
5
3.5 Information for the pneumatic actuator
Max. environmental temperature
60°C
Control medium
neutral gases
Max. temperature of control medium
60°C
Pilot pressure
3-6 bar
Torque
3-6 Nm
Rotary movement
90° + 3°
Connection
G 1/4"
4 Assembly and Operation
4.1 Assembly Instructions
• Make certain the
fi
tting is suitable for the relevant ap-
plication. The
fi
tting must be suitable for the operating
conditions of the pipeline system (medium, concentra-
tion, temperature and pressure) as well as the relevant
ambient conditions.
• Check the
fi
tting for transport damage before installing
it. If the
fi
tting is damaged do not install it.
• The planner, the construction company or operating
company are responsible for the positioning and instal-
lation of the
fi
tting. Planning and installation errors can
adversely affect the reliable functionality of the
fi
tting
and may represent a signi
fi
cant potential for hazard.
• After the
fi
tting is installed perform a tightness and
function check.
4.2 Tools Required
The tools required for installation and assembly are not
included with delivery.
4.3 Connect Ball Valve
• The
fi
tting must be connected to the pipeline so it is
free of mechanical stress.
• The Ball Valve has a female thread (ISO, DIN,
ANSI) and can be connected with various connecting
elements of the
em
technik system.
Cylindrical thread
Conical thread
Sealing is provided by a sealing collar for
Cylindrical threads (G, M or UNF).
A version with an O-ring is also possible.
Sealing is provided by
the thread itself for Co-
nical threads (NPT).
Sealing Collar
O-Ring
Thread
• Each thread must always be connected with the same
thread type.
• If a plastic
fi
tting is used in combination with a metal-
lic male
fi
tting, additional sealing with Te
fl
on® tape is
recommended.
5 Commissioning
5.1 Precondition for Commissioning
• Protect against leaks: Take protective measures
against exceeding the maximum permitted pressure
due to possible pressure surges.
• Check the tightness and function of the
fi
tting.
• In new systems and after repairs,
fl
ush the line system
to remove foreign materials.
5.2 Control Function
Control function 1 (Standard) – Normally closed (NC):
Ball valve resting position: closed by spring force. Activation of the
actuator (connector 2) opens the ball valve. When the actuator is
vented, the ball valve is closed by spring force.
In case of control function 1: connector 1 is closed with a blanking
plug.
Control function 2 – Normally open (NO):
Ball valve resting position: opened by spring force. Activation of the
actuator (connector 2) closes the ball valve. When the actuator is
vented, the ball valve is opened by spring force.
In case of control function 2: connector 1 is closed with a blanking
plug.
Control function 3 – Double acting (DA):
Ball valve resting position: unde
fi
ned. The valve is opened and closed
by activating the respective control medium connectors (connector 2:
open / connector 1: close)
