Cla-Val 100-23 600 Series - Manual

• Built-in Automatic Check Valve
• Improved Flow Characteristics
• Drip Tight, Positive Seating
• Globe or Angle Pattern
• Packless Construction
The Cla-Val Model 100-23 Hy-Check Valve is a hydraulically
operated diaphragm valve with a built-in check feature to
prevent return flow. Available in a globe or angle pattern, it
consists of three parts: body, cover and diaphragm
assembly. The only moving part is the diaphragm assembly
which is guided top and bottom by a precision machined stem.
When operating pressure is applied above the non-wicking
diaphragm, a synthetic rubber disc retained on three and
one-half sides forms a drip-tight seal with the renewable
seat. When pressure above the diaphragm is relieved the
valve opens wide. The rate of closing or opening can be
controlled by modulating the flow into or out of the
diaphragm chamber. When a pressure reversal occurs the
split valve stem will allow the disc retainer assembly to
check closed regardless of the position of the
diaphragm.
The Model 100-23 is used on system applications requiring
remote control, pressure regulation, solenoid control, rate of
flow control, liquid level control, or wherever a positive
check feature is necessary to prevent reverse flow.
100-23
600 Series
Hy-Check Valve
Principle of Operation
Full Open Operation
When pressure in the cover chamber
is relieved to a zone of lower
pressure, the line pressure at the
valve inlet opens the valve, allowing
full flow.
Check Action
When a static condition or pressure
reversal occurs, the split stem
design allows the valve to instantly
check closed. Return flow is
prevented regardless of the
diaphragm's position.
Tight Closing Operation
When pressure from the valve inlet
is applied to the cover chamber, the
valve closes drip-tight.
On-Off Control On-Off Control Modulating
Control
Note: For optimum operation of built-in check feature, installation with stem vertically up is recommended.
MODEL
(Reduced Internal Port)