PVL introduces IP67 Rated Pressure Switches.
PVL has introduced a new range of pre-set pressure
switches featuring an integrated M12 connector and
offering a sealed design protected to 1P67. Available
for pressures from 0.2 to 300 bar, the new switches
provide inherently reliable operation in highly demanding
applications where even 1P65 protection is not enough
to ensure long term reliability of the switch or, in extreme
situations, the assured operation of the connected circuitry.
The new MS/PS pressure switches with integrated M12 plug
extend one of world's largest ranges of fluid control products,
and have been developed in response to increasing market
demand for a rugged, compact, pre-set item with 1P67 protection.
The design integrates a 4-pin M12 connector into a newly
developed protection cap to provide a product which guarantees
high integrity whilst making installation quick and easy.
The 1P67 MS/PS pressure switches will be of particular interest
in mobile plant applications that face extreme environmental
conditions beyond the sealing capabilities of even 1P65 protection.
The new switches will also provide a more reliable solution in
damp or dusty industrial situations, or in the likes of machine tool
applications where cutting oils are an ever-present problem and
where 1P65 protection is simply not enough.
Further, the new switches should also provide increased
assurance of operation in applications where the pressure
switch is connected to solid state control equipment, as PVL's
Steve Moorey explains: "The increased usage of solid state
control equipment can make life a bit difficult for the pressure
switch. The high currents associated with electromechanical
switchgear help to keep the contacts of the pressure switch
clean, but the currents through solid state devices are too low to
have any effect. Gold-plated contacts in the pressure switch
obviously help, but even so it can only take a few molecules of
dirt seeping in through the seal to build up on the contacts before
operation is compromised. The 1P67 design effectively eliminates
the problem."
The 1P67 MS/PS range is available in a huge range of options,
covering adjustment ranges from 0.2 to 300bar, different
diaphragm and piston seal materials, choice of body materials,
a wide choice of thread connections, pre-set switching on rising
or falling pressures, and high pressure or degreased execution.
The result is a highly flexible and versatile range of products that
will meet the needs of the widest possible range of applications.
MS/PS pressure switches provide a single-pole, double-throw
(SPDT) contact configuration, rated at 250V AC, 3A. They also
provide a specific pin for ground connection, to assure the highest
levels of safety whatever the application.
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For more information, contact...
PVL Limited
Unit 9, Lexden Lodge Industrial Estate, CROWBOROUGH TN6 2NQ. UK.
Tel : +44(0) 1892 664499
Fax : +44(0) 1892 663690
Email : david.almond@pvl.co.uk
Website : www.pvl.co.uk
February 2004
