Operation, Maintenance & Safety Manual
Version 7.01 January 2006
10
3.4
Product Range
The VERDERFLEX
®
Dura
®
range of pumps are sized and named according to the internal bore
diameter of the hose. The range starts with the 10mm diameter DURA10 unit, and incorporates a
total of 3 models, up to the 25mm diameter DURA25.
The pumps are capable of operating up to 12 bar / 174 PSI with a pumping capacity of:
PUMP SIZE
LITRES PER
HOUR
GALLONS PER
HOUR (US)
DURA10
139
37
DURA15
456
120
DURA20
1705
450
3.5
Pump Construction
The VERDERFLEX
®
Dura
®
pump, Figure 1, is one of the most simple, yet most robust designs of its
type, with few moving parts:
Figure 1
The pump housing is terminated with universal taper-lock flange connections to suit PN 16, ANSI
and JIS. Within the housing the rotor compresses the reinforced hose, this displaces the pumped
media and generates a peristaltic pumping action. The housing provides support for the hose whilst
under compression from the rotor assembly. A taper-lock flange is used to retain the hose position
within the housing whilst clamping and sealing the hose in the Housing. The rotor runs in a lubricant
bath, which is filled through breather tube at the rear of the housing. Overall the unit is designed to
enable simple assembly and maintenance.
