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ISOLATION VALVES GENERAL INFORMATION
Manifolds & CoolCube™“Hit and Hold” Circuit
Page 7
100T Series Isolation Valves
0.062” / 1.6mm, 0.092” / 2.3mm and 0.125”/3.2mm orifice sizes (2-way NC),
0.062” / 1.6mm and 0.092” / 2.3mm orifice sizes (2-way NO) and 0.032” /
0.81mm and 0.062”/1.6mm orifice sizes (3-way)
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Page 5
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Isolation Valves General Information
Why choose an Isolation Valve and Common Applications
Page 9
075T Series Isolation Valves
0.032” / 0.81mm and 0.054”/1.4mm orifice sizes (2-way) and
0.032” / 0.81mm and 0.046”/1.2mm orifice sizes (3-way)
038T Series Isolation Valves
0.032” / 0.81mm and 0.054”/1.4mm orifice sizes
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Isolation Valve Selection Guide
What is an Isolation Valve?
Bio-Chem Valve™ Isolation Valves are solenoid-operated devices.
The valves
use a flexible
diaphragm
to isolate
the solenoid
actuation
mechanism
from the fluid
path. Isolation
Valves are
available in
three different
configurations;
normally
closed,
normally open
and 3-way.
When the valve
is energized,
the solenoid
retracts the
armature that
is attached
to a flexible
diaphragm. In a
normally closed
valve, this raises the diaphragm allowing fluid to flow between the
inlet and outlet ports. For a normally open valve, the operation is
reversed. When the valve is energized, the diaphragm presses down
to close the fluid path.
3-way valves have three ports referred to as normally closed,
normally open and common. When the valve is de-energized, fluid
flows between the normally open and the common port. When the
valve is energized, the valve switches and fluid flows between the
normally closed and the common port.
Features of an Isolation Valve
•
Choice of valve function.
2-way normally closed
2-way normally open
3-way
•
Inert fluid path.
The fluid path in a Bio-Chem Valve™
Isolation Valve can be made entirely from extremely inert
materials such as PTFE and PEEK.
•
Choice of materials.
Valve bodies are available in PPS, PEEK
and PTFE. Diaphragms are available in FFKM, EPDM and PTFE.
(Not all combinations of materials are available in all sizes or
configurations).
•
Choice of valve orifice sizes.
Precisely machined valve
orifice sizes from 0.032” (0.81mm) to 0.125” (3.2mm) in
three different dimensional frames ensures that the most
appropriate design for your application can be selected from
standard configurations.
•
Bi-directional.
Bio-Chem Valve™ Isolation Valves identify the
preferred inlet port on the valve label. However, all valves can
be used in any flow direction.
Solenoid
Armature
Diaphragm
Fluid Inlet
Fluid Outlet
Spring