Cla-Val 2100S - Manual

100S/2100S
MODEL
(Full Internal Port)
• Drip - tight, positive seating
• Service without removal from line
• Screwed or flanged ends
• Globe or angle pattern
• Every valve factory-tested
The Cla-Val Model 100S/2100S Seawater Service Hytrol Valve
is a hydraulically operated, diaphragm actuated, globe or
angle pattern valve. It consists of three major components:
body, diaphragm assembly and cover. The diaphragm assem-
bly is the only moving part.
The body (ductile iron or cast steel) is epoxy coated and contains
a removable seat insert. The diaphragm assembly is guided top
and bottom by a precision machined stem. It utilizes a non-wick-
ing diaphragm of nylon fabric bonded with synthetic rubber. A
resilient synthetic rubber disc retained on three and one half sides
by a disc retainer forms a drip-tight seal with the renewable seat
when pressure is applied above the diaphragm.
The Model 100S/2100S Seawater Service Hytrol Valve is the
basic valve used for seawater applications. It is the valve of
choice for system applications requiring deluge, pressure regu-
lation, pressure relief, solenoid operation, rate of flow control, liq-
uid level control or check valve operation. The rugged simplicity
of design and packless construction assure a long life of
dependable, trouble-free operation. It is available in various
materials and in a full range of sizes, with either screwed or
flanged ends. Its applications are unlimited.
Modulating Action
The valve holds any intermediate position
when operating pressures are equal above
and below the diaphragm. A Cla-Val “modu-
lating” pilot control will allow the valve to
auto matically compensate for line pressure
changes.
Principle of Operation
Full Open Operation
When pressure in the cover chamber
is relieved to a zone of lower pres-
sure, the line pressure at the valve
inlet opens the valve, allowing full flow.
Tight Closing Operation
When pressure from the valve inlet
is applied to the cover chamber, the
valve closes drip-tight.
On-Off Control
Modulating
Control On-Off Control
Seawater Service Hytrol Valve