Burkert Type 2012 - Manual (Page 14)

14
TechnicalData
Type 2012
Medium pressure [bar]
Pilot pressure [bar]
Fig. 16: Pressure graph, actuator ø 100 mm, control functions B
and I, flow direction below seat
Pilot pressure [bar]
Medium pressure
[bar]
Fig. 17: Pressure graph, actuator ø 125 mm, control functions B
and I, flow direction below seat
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, PPS
Seal materials PTFE
(NBR, FKM and EPDM on request)
Packing gland PTFE (carbon-filled)
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