Comet MTP AX Misting, Assembly, Operation And Maintenance Instructions, Page: 40 / 104

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• The motor pump must operate without exceeding the pressure limits as shown on the plate (12). In particular,
always make sure the pressure limiting/unloader valve is correctly set and that this setting is guaranteed, e.g.,
by paint coating.
The pump applications must be made following good mechanical engineering practices. The Manufacturer’s
After-Sales Service is at the disposal of the Skilled Technician to provide all necessary information.
HYDRAULIC CONNECTION
For the hydraulic suction, delivery and bypass connections, refer to the following table and to Fig. 16, which
represents a generic diagram of a possible machine integrating the motor pump.
A. Pump
B. Pressure limiting/unloader valve
C. Suction circuit
D. Delivery circuit
E. Lance (example of accessory)
F. Engine
CAUTION
• Follow the connection instructions already indicated in the
“C
hECkING AND CONNECTING UP TO ThE WATER
SUPPLY
”
and
“S
PECIFICATIONS AND TEChNICAL DATA
”
paragraphs.
In particular, the suction circuit must be sized so as not to determine on the motor pump suction fitting:
- a pressure higher than 8 bar/116 psi;
- a vacuum higher than 0 bar/0 psi (
MTP KTR - MTP KTR Misting - MTP KMR - MTP KSR - MTP KSR Misting - MTP
AX Misting - MTP LW Misting
); 0,05 bar/7,25 psi (
MTP LWR-K 250 - MTP LWR-K - MTP ZWR-K - MTP AXR
);
1 bar/14,5 psi (remaining motor pumps).
• At motor pump suction, a filter of adequate dimensions must be fitted. In case of doubts, contact the
Manufacturer.
• The suction pipes must have a suitable internal diameter and a nominal pressure of 10 bar/145 psi.
• The delivery pipes must have a nominal pressure not below the motor pump max. pressure.
• Do not supply the motor pump with liquids at a temperature above 60 °C/140 °F (50 °C/ 122 °F for MTP KTR,
MTP KTR Misting, MTP KMR, MTP KSR, MTP KSR Misting) or below 5 °C/41 °F.