Burkert Type 2012 - Manual (Page 11)

11
Installation
Type 2012
7.4.3 media
Control medium neutral gases, air
Flow medium water, alcohol, fuel, hydraulic liquids,
saline solutions, lye, organic solvents
7.5 control functions
Control function A Normally closed by spring action
Control function B Normally open by spring action
Control function I Actuating function via reciprocal
pressurization
7.6 mechanical data
materials
Valve body
Stainless steel 316L
Actuator PA
Seals materials PTFE
(NBR, FKM and EPDM on request)
Packing gland PTFE (carbon-filled)
8 insTallaTiOn
8.1 safety instructions
Danger!
risk of injury from high pressure!
▶ Before loosening the lines and valves, turn off the pressure and
vent the lines.
Warning!
risk of injury from improper installation!
▶ Installation may be carried out by authorized technicians only and
with the appropriate tools!
risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶ Secure system from unintentional activation.
▶ Following installation, ensure a controlled restart.
for control function i – danger if pilot pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the device with pilot
pressure, then switch on the medium.
risk of injury from moving parts in the device!
▶ Do not reach into openings.
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