Pump Description; General Description Of The Pump; Sizes; Variants - Becker DT 4.25 Translation Of The Operating Instructions

12 | DT 4.10, DT 4.16, DT 4.25, DT 4.40, DX 4.10, DX 4.16, DX 4.25, DX 4.40
4

PUMP DESCRIPTION

This chapter explains the assemblies and components of the pump and how they work.
The following information is intended to help you understand how the pump works. This information can help to
avoid dangers and errors due to incorrect operation.
4.1

GENERAL DESCRIPTION OF THE PUMP

4.2

SIZES

Several pumps of different sizes are listed in these operating instructions because they
• work according to the same principle of action,
• have the same intended use,
• are subject to the same legal and normative requirements,
• have a similar construction,
• have similar physical characteristics
• and are also very similar in terms of maintenance/service/commissioning.
4.3

VARIANTS

4.3.1

VARIANTS DT 4.10-4.40

Within the DT 4.10-4.40 series, a distinction is made between 2 variants.
DT 4.25/0-80 and DT 4.40/0-80 without compressed air cooler, lower motor power and lower maximum
pressure.
4.3.2

VARIANTS DX 4.10-4.40

Note on the series
Series X sliders are characterised by extremely long slider service lives.
Becker guarantees a slide valve service life of 20,000 operating hours or a maximum of 3 years for this pump.
X series intake filters have a removable cover (pre-filter) that extends the life of the filter when cleaned regularly.
Within the DX 4.10-4.40 series, a distinction is made between 2 variants.
DX 4.25/0-80 and DX 4.40/0-80 without compressed air cooler, lower motor power and lower maximum
pressure.
The pump is a classic dry-running rotary vane compressor.
It consists of a housing, the eccentrically installed rotor (2), the radially
moving vanes (3) and the inlet and outlet (4+6).
When the rotor rotates, gas flows through the intake nozzle (4) via the
intake filter (5) into the enlarging chamber (1) until it is shut off by the
next slide valve. The enclosed gas is then compressed and conveyed
through the outlet (6), at the cooler (DT 4.25+40 K only) or in the bonnet,
into the connected pressure line.