CLA-VAL 90-01, Technical Documentation Manual

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CLA-VAL 100-01
Installation - Operation - Maintenance
NGE - GE - AE
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CLA-VAL Europe www.cla-val.ch cla-val@cla-val.ch 2 - HYT001SE C 11/08
Full Open Operation
When pressure in diaphragm
chamber is relieved to a zone of
lower pressure (usually
atmosphere) the line pressure
(5 psi Min.) at the valve inlet
opens the valve.
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PRINCIPLES OF OPERATION
(Illustration type GE)
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THREE CHECKS
The 100-01 HYTROL Valve has only one moving part (the diaphragm and disc assembly). So, there are only three major
types of problems to be considered.
First: Valve is stuck - that is, the diaphragm assembly is not free to move through a full stroke either from open to close or
vice versa.
Second: Valve is free to move and can’t close because of a worn out diaphragm.
Third: Valve leaks even though it is free to move and the diaphragm isn’t leaking.
CAUTION! Care should be taken when doing the troubleshooting checks on the 100-01 HYTROL Valve. These checks do
require the valve to open fully. This will either allow a high flow rate through the valve, or the downstream pressure will
quickly increase to the inlet pressure. In some cases, this can be very harmful. Where this is the case, and there are no
block valves in the system to protect the downstream piping, it should be realized that
the valve cannot be serviced under
pressure. Steps should be taken to remedy this situation before proceeding any further.
Valve size (DN)
COVER CHAMBER CAPACITY
(liquid Volume displaced when valve opens)
STEM TRAVEL
(Fully Open To Fully closed)
NGE GE Liters Gallons mm Inches
50 32 - 40 0,07 0,020 10,0 0,40
65 & 80 50 0,12 0,032 15,0 0,60
65 0,16 0,043 18,0 0,70
100 80 0,30 0,080 20,0 0,80
125 & 150 100 0,64 0,169 28,0 1,10
200 150 2,00 0,531 43,0 1,70
250 200 4,80 1,260 58,0 2,30
300 250 9,50 2,510 71,0 2,80
350 & 400 300 15,10 4,000 86,0 3,40
350 24,60 6,500 100,0 4,00
500 & 600 400 36,20 9,570 114,0 4,50
TYTAN Liters Gallons mm Inches
TYTAN-S 600 - 800 107,00 28,27 154,6 6,0
TYTAN-M 900 - 1000 159,00 42,00 190,0 7,5
TYTAN-L 900 - 1200 340,00 90,00 216,0 8,5
Tight Closing Operation
When pressure from the valve inlet
(or an equivalent independent
operating pressure) is applied to
the diaphragm chamber the valve
closes drip-tight.
Modulating Action
Valve modulates when diaphragm
pressure is held at an intermediate point
between inlet and discharge pressure.
With the use of a CLA-VAL. "modulating
control," which reacts to line pressure
changes, the pressure above the
diaphragm is varied, allowing the valve to
throttle and compensate for the change.
CLA-VAL control
On/Off Control On/Off Control