The Green Peristaltic Pump
The successful use of hose pumps in a number of situations led Verder
to develop a hose with an enhanced construction. Hoses in peristaltic pumps
generally fail due to fatigue of the reinforcement layer. Verder hoses
are specifically designed and manufactured to maximise fatigue resistance,
resulting in an extremely long hose service life.
Specification:
Suitable for use with lightly corrosive chemicals, highly abrasive slurries and inorganic products. Temperature range -20°C/-5°F to +80°C/+175°F.
Suitable for use with lightly corrosive chemicals, highly abrasive slurries and inorganic products. Temperature range -20°C/-5°F to +80°C/+175°F.
The NBRF hose has an FDA CFR21 & EC No. 1935/2004 approved food grade liner for use in hygienic applications. Temperature range -20°C/-5°F to +80°C/+175°F.
For Dura pumps only. Good chemical resistance, mechanical properities Temp. range: 10°C/50°F to +85°C/185°F Meets EC regulation No.1935/2004 FDA – CFR 21 Parts 170 to 189 – Item 177.2600 Maximum Discharge Pressure - 3 Bar.
This hose is suitable for corrosive chemicals and inorganic products. Solid construction, made totally from EPDM rubber. Temperature range -20°C/-5°F to +100°C/+210°F.
The CSM or Hypalon® hose is used to pump highly corrosive products. The hose has a CSM inner liner and an SBR/NR outer cover. Temperature range -20°C/-5°F to +85°C/+175°F.
For safety reasons we do not recommend pumping liquids greater than 85°C (185°F). Verderflex produces a range of standard tubing to meet the requirements of the wide and varied applications of its tube pumps. However, not all tubes are suitable for use in a peristaltic pump. The following criteria are important when selecting a tube:
The standard choice for use in peristaltic tube pumps. This beige coloured tube has:
A translucent medical/food grade tubing which is odourless, non-toxic and has FDA and USP Class VI approvals. It is
Specifically designed to handle many fuels and industrial lubricants this tubing resists the swelling and hardening caused by the chemical attack due to hydrocarbon based fluids. These properties significantly reduce the risk of failure due to cracking and leakage.
Viton is strong, resilient and flexible tube which provides excellent resistance to corrosive acids, alkalis and some solvents.
Peristaltic hose pumps such as the VF and Dura, require lubrication to
work effectively and to maximise the service life of the hose. Verderflex
have developed Verderlube and Verdersil high performance lubricants, which
is specifically designed to work with the Verderflex hose range. Additionally,
the textured surface of the Verderflex hose creates micropockets of lubrication
which promotes even coverage along the hose, assisting in the hose cooling
process and extending hose life.
Verderflex have two standard lubricants covering the majority of
all applications however, if you require an alternative lubricant please
contact us and we will be able to offer advice on the most suitable product.
Verderlube is a specially formulated food-grade lubricant containing glycerine.
This lubricant promotes heat transfer from the hose to the pump casing
to maximise hose life. The lubricant is blue in colour and can be used
at temperatures ranging from -40°C to 100°C (-40°F to 210°F).
In most cases Verderlube is a very stable compound, but where it could
react adversely or dangerously when mixed with certain nitrogenous compounds
(such as Nitric Acid), strong oxidising agents (Peroxides) and certain
other exothermic reactants chemicals including Potassium Permanganate.
Then an alternate lubricant is required.
In these cases or at elevated temperatures, Verderflex recommends
use of a food grade silicone oil based product, Verdersil.
pH probes are available in epoxy (plastic) or glass. The probe consists of two electrodes the reading electrode (platinum coated) and the reference electrode. There are two different types of connection available, BNC or S7 (screw). Full scale is 0-14 pH.
Redox probes are available in epoxy (plastic) or glass. The probe consists of two electrodes the reading electrode (platinum coated) and the reference electrode. There are two different types of connection available, BNC or S7 (screw). Full scale is +-2000mV.
The Amperometric cell is used to measure the concentration of chlorine in the water and give a reading in PPM (part per mjillion). The electrode is composed of platinum and copper. The body of the cell is made of Plexiglass and comes with an integrated flow switch and self cleaning system, consisting of 80 small ceramic balls.