Dual Pumps BP 125, Operating Instructions Manual, Page: 9 / 20

2.2 SAFETY DEVICES
CAUTION
• The machine which incorporates the pump must always be provided with the safety
devices described below.
• If the safety valve cuts in repeatedly, immediately stop operation of the machine, which
incorporates the pump, and have it tested by a Skilled Technician.
• Any drainage from the safety valve must not leak into the environment.
• Should the protection of the pump shaft break or be damaged, the machine which
incorporates the pump must not be used until it has been tested by a Skilled
Technician.
• Do not place hands or feet on the pump shaft protection.
a) Safety valve
This is standard for certain versions and is available as an optional accessory for
others.
It is an appropriately calibrated, maximum pressure valve that discharges excess
pressure should any anomaly occur in the pressure adjustment system.
b) Pump shaft protection
This is standard for certain versions and is available as an optional accessory for
others. It is to prevent the operator from coming into contact with the moving parts of
the pump shaft.
c) Pressure limit/adjustment valve
This is standard for certain versions and is available as an optional accessory for
others.
This valve enables the adjustment of the operating pressure and permits the pumped
fl uid to return to the by-pass duct, thus preventing the creation of dangerous levels
of pressure when delivery is closed or should pressure be set that is above permitted
levels.
If a pressure limit/adjustment valve has devices to intercept/distribute the pumped
liquid (e.g. taps), it is usually called a pump control unit. In this manual, the term control
unit stands for both the pressure limit/adjustment valve and the pump control unit.
2.3 IDENTIFICATION LABEL
The identification label (2.1 - 16) contains the serial number and the main technical
specifi cations for the pump: version, maximum delivery (at 0 bar/0 psi), delivery at
maximum pressure, maximum pressure, and maximum speed of rotation.
The adhesive identification label is located in a visible position on the pump.
CAUTION
• If the identification label deteriorates during use, contact your dealer or an authorised
service centre so they can be replaced.
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