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Pentair PRESSOMAT PMD20 PVM Automatic Twin Booster Pumps

Pentair PRESSOMAT PMD20 PVM Automatic Twin Booster Pumps



BOOSTER SETS - FIXED SPEED

Pentair PRESSOMAT PMD20 PVM Automatic Twin Booster Pump Sets for the pressurization and delivery of water supplies via a break tank. Equipped with three phase pumps. Single phase options available. Controlled by two pressure switches with adjustable settings and a control panel for alternating duty, assist and optional low level warning connection. Stainless steel suction manifold complete with 2 ball valves and 2 check valves. Stainless steel discharge manifold complete with 2 brass ball valves, 2 pressure switches and pressure gauge. Base in galvanised steel. All parts require Pressure Accumulator Vessels. Larger twin booster sets are available up 1300 litres per min 

DESCRIPTION
The pumps are controlled by two differential pressure switches with adjustable settings, via an electrical panel with an analogue electronic board for: 

- the sequential start-up of the pumps
- the inversion of the start-up order
- timer settable from 0 to 180», only for the three-phase version
- protection against dry running 

When the network pressure reaches the value for the closing of the electrical contact of pressure switch n.1, a pump starts. 

If the pressure continues to fall, when the closing value of the second pressure switch is reached, the second pump is started up. 

When the value of the network pressure increases, the pressure switches open their contact causing the relative pump to stop. 

At the end of each cycle, the automatic inverter changes the starting order of the pumps (once pressure switch n.1 is associated to pump n.1; in the next cycle to pump n.2). 

If the two pressure switches close at the same time, the electronic board will delay the start-up of the second pump avoiding abrupt changes in pressure and the overload of the power supply. 

MECHANICAL DATA
Operating pressure max. - 16 bar
Type of liquid - Clean water without suspended solids or abrasive materials
Temperature of liquid max. - 40 degrees C

ELECTRICAL DATA
Type of enclosure - IP55
Ambient temperature max. - 50 degrees C 



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