2-4 Cullen Place
Smithfield NSW 2164
ABN：90 000 955 564
TEL：+61 2 9757 2288
FAX：+61 2 9757 2322
Kenrahn LEVEL REGULATORS can be supported on their own double
insulated PVC cable and easily adjusted to the switching level
by raising or lowering the cable.
To prevent tangling, a brass weight is provided to submerge the
float chamber when the level rises. The switch action takes place as
the float chamber passes the horizontal plane.
They can be used to automatically fill a tank or empty a pit, and
are ideally suited for use in storm water, sewage or sump dewatering
applications as well as fresh water conditions.
Kenrahn Pressure Switches/Controllers
The DBSF-K and the DBSF-1RE Flow Switches have been designed for the
of liquids in pipes from 1 to 8 inches. 25 to 200 mm
The Flow Switch is particularly suitable as a No Flow or Low Flow
protection switch for general industrial plants, Sprinkler Systems,
Anti-Fire Systems, Steam Boilers and Irrigation Plants.
Kenrahn LRS, (Level Regulator Starters) are designed to
positively operate a pump on rising or falling liquid.
They can be used to automatically fill a tank or empty a pit, using
two Kenrahn level regulators.
The economy unit has start/stop buttons to manually override the
system when the liquid is between the level regulators, and can also
be used for manual start and automatic stop for high or low level
protection. Various specials can be built to suit your exact needs.
The following examples can be used as a guide to help determine your
Kenrahn LCS, (Level Control Starters) have been developed over
many years to provide the most reliable electronic method of
controlling submersible bore hole pumps in harsh rural conditions
and varying types of water. The standard unit incorporates a
magnetic contactor and an electronic water level sensor.
The standard model can be used in many ways to irrigate or
fill tanks, as shown below. Also special units can be made to suit
your exact requirements, use the examples shown below to help
determine your needs.
PROBES AND ELECTRODES
Kenrahn Irrigation Starters have been developed for the rural area
and are robust and rated to suit harsh conditions. They are
completely weatherproof and pre-wired to save installation time.
The standard model has a 28 hour irrigation timer and loss of
pressure protection which makes it suitable for most applications
including Travelling Irrigators, Side Roll, Drip, Fixed Irrigation
Kenrahn TFS, (Tank Filling Starters) are designed to keep
distant tanks full without the need of running costly wires between
the tank and pump. The unit can be set to have between 1 and
48 starts per day and will stop automatically when the tank is full
by sensing an increase in pressure as the float valve in the tank
Whilst running, the system is also protected from loss of pressure
which can indicate a broken pipe or a pump malfunction.
Various standard models are available to suit many applications
whether pumping from a bore, river or tank with a centrifugul,piston
or helical rotor pump. Special units can be built to suit specific
requirements, Please contact our office.
The Kenrahn Turf Watering Starter is suitable for irrigation and lawn
watering projects using a solenoid valve controller to automatically
water sections in sequence and send a pump start signal to the TWS
(Turf Watering Starter).
The standard TWS is housed in a powder coated weather proof metal
enclosure and is available in many standard and special combinatons
to suit most applications. Economy versions are also available in
The Kenrahn Centre Pivot Starter has been developed over many years
to be compatible with many styles of centre pivot or lateral move
irrigators. They are completely weatherproof and pre-wired to
save installation time. The standard model has a 24 Volt ac extra
low voltage circuit to link the pivot to the pump. If the pivot gets
out of line or stops, the pump will stop. If the pump stops, the
pivot will stop.
Kenrahn TPS, (Twin Pump Starters) are primarily used for storm water,
sewage or sump dewatering.
The standard model can operate a two pump system on an alternating
basis with three CR style level regulators. It incorporates two DOL
(Direct On Line) motor starters with Manual-Off-Auto Selectors and
indicating lights for pump run, overload and power available. Many
options can be added to the standard unit.
Kenrahn PSS, (Pressure System Starters) Operate as a pressure system
with inbuilt pressure switches to start on pressure drop and stop on
pressure rise after a time delay to prevent short cycling and ensure
that the pressure vessel is charged. The following diagrams show
some of the methods used and special units can be built to
suit your exact needs. The standard unit incorporates two pressure
switches and provides terminals for a flow switch in case the pump
has a flat curve. Twin alternating standard units are available with
loss of pressure protection and include four inbuilt pressure
CONSTANT PRESSURE STARTERS
The Kenrahn Hot Water Circulators automatically keep the water
circulating in hot water systems to maintain water temperature in
large commercial applications.
Standard models are available with or without pipe thermostat
options for 1 or 2 pump systems. Two pump systems can be supplied
with 12 or 24 hour alternation of pumps with or without voltage free
contacts for building maintainence monitoring.
Kenrahn "ALM" Alarm Modules, designed for use with "TPS" Twin Pump
Starters, can be used as stand alone alarm annunciator panels for
visual and or audible indication of alarm conditions such as, High
or low level, Low pressure, Overload or any fault which may require
Many models are available on request with special features to
operate pumps as well as indicate faults.
The KPS, (Kenrahn Pump Starter) is a range of motor starters
that can be used to start motors that do not fit into a standard
catergory like TFS, LRS, LCS etc. The control voltage is usually the
same as the supply voltage and the models listed here can have many
options listed on page 48 or special controls not listed.
The standard models have terminals for external control pressure
switches, level switches etc.