Solenoid valves - Bürkert Fluid Control Systems

2. Functional principals
The tasks of the valves or actuators
are shutting off/releasing, dosing, distributing
or mixing fluids and gases.
The requirements applicable to valves
are very diverse, including:
■ fast and safe switching
■ low leakage losses in closed
position
■ low control power
■ use for differing flow rates
(nominal size) and pressures
(nominal pressures)
■ use for neutral and/or aggressive
fluids and gases
■ differing mechanical construction
in the fluid section/valve, in the
actuator (type of energy/principle)
and in control
■ small overall size
■ long service life
■ ambient conditions.
Application areas
Process engineer./chemical engineer.
Plant engineer./mechanical engineer.
The semiconductor industry
Water treatment
Environmental technology
Medical engineering
Equipm. construct./Analysis techn.
The special operating conditions for
valves mean that there is a wide variety
of variants which are matched to specific
tasks. Over the course of time,
manufacturers have developed names
and terms whose logic is not always
understandable, but which have nevertheless
become incorporated into the
everyday jargon in the sector. Terms
focusing on the function of the valve
(on/off, proportional) are blended with
names characterizing a design or design
element (e.g. plunger-type valve,
pivoted-armature valve, rocker valve,
diaphragm valve or angle-seat valve,
etc.).
Bürkert solenoid valves are intended
for operation with neutral, aggressive
and special fluids, even under arduous
operating conditions. They serve to
shut off, distribute, mix or dose cold
and hot fluids (fluids such as water,
oils, fuels, solvents and saline solutions
etc., gases and steam...).
16/17