Altitude & Level Control Valves

Cla-Val manufacture several types of level control valves which can be categorised as either MODULATING or NON-MODULATING (ON-OFF). Non-modulating valves open when the liquid in a tank reaches a pre-set low point. The opening operation allows the tank to be refilled to a pret-set high level, at which time the valve closes drip-tight. Modulating float valves typically maintain a constant level in tank by compensating for variations in demand.
Altitude control valves regulate the water level in reservoirs in either Non Modulating or Modulating modes without the need for floats or other devices and are configured for one-way or two-way flow depending on system requirements. All the above valves can be furnished with auxiliary controls for multiple functions such as pressure sustaining, pressure reduction, rate-of-flow control, solenoid override or other parameters as needed.
Altitude – Modulating Constant level

Altitude – Modulating Constant level

CLA-VAL models 208GE-01 / NGE208-01 modulate to maintain a constant level
in a tank. They are 
typically designed for closed reservoirs where water is
withdrawn through a separate line.  
Find out more...
technical datasheet for the 208-01 modulating altitude valve here


Float valve –Modulating / Constant Level (1 ½” to 150mm)

Float valve –Modulating / Constant Level (1 ½” to 150mm)

CLA-VAL models 429GE-01/ NGE429-01 are self-stabilizing float operated level
control 
valves designed to maintain a constant liquid level. Find out more...

View technical information for the 429-01 float valve


Float valve – Modulating / Constant Level (150mm-600mm)

Float valve – Modulating / Constant Level (150mm-600mm)

CLA-VAL models 427GE-01/ NGE427-01 are self-stabilizing float operated level
control valves 
designed to maintain a constant liquid level. Find out more...
427-01 float control valve technical download


Modulating float valve – Constant level

Modulating float valve – Constant level

Cla-Val model AQUA 80-910 modulating float valve is installed on the reservoir inlet
supply pipe 
above the maximum water level. As the flow out of the reservoir
fluctuates the float control 
proportionally opens or closes the valve keeping
the liquid level nearly constant.
 Find out more...

80-910 technical datasheet download


Float valve ON-OFF with delayed opening

Float valve ON-OFF with delayed opening

CLA-VAL models 100GE-CF9/NGE100-CF9 float operated valves open when the
liquid level 
reaches a presetminimum level and closes drip tight when the filling
of the tank reaches 
the presetadjustable maximum level. Find out more...


Altitude ON-OFF with delayed opening

Altitude ON-OFF with delayed opening

CLA-VAL models 210GE-01 / NGE210-01 are typically designed for closed reservoirs.
The valve opens 
when the liquid level reaches a preset minimum level and closes drip
tight when the tank reaches 
the preset adjustable maximum level.  Find out more...
technical datasheet download 210-01