Verderflex offers a variety of hoses and tubes so that you get the best product for the job. This ensures a longer hose life and a better pump for you. Verderlube is a specifically designed industrial lubricant which is used to keep your pump working at peak performance. The unique formula allows you to get maximum use out of your hose.
Verderflex Reinforced Hose - Peristaltic Pumps
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 maximize fatigue resistance, resulting in an extremely long hose service life.
Verderflex Hose Specification:
- 12 standard hose sizes from 5mm (3/16”) to 125mm (5”)
- All hoses are designed to maximize hose life by increasing the the hoses’ fatigue strength
- Standard VF Hoses are available in Natural Rubber (NR), Nitrile Buna Rubber (NBR), Food Grade NBR (NBRF), EPDM and Hypalon® (CSM)
- Hoses have colour coded identification tapes bonded into the outer surface during manufacture to clearly identify material type.
- A pump’s flow rate is determined by the hose’s internal diameter and the pump’s rotor speed. The recovery (restitution) of the hose is determined primarily by the design of the re-enforcing layers. These re-enforcing layers provide maximum resistance to repeated compression and relaxation, thereby ensuring maximum hose life. This restitution also produces a suction side vacuum and this provides the hose pump with a very powerful dry priming mechanism, allowing high viscosity liquids to be pumped.
NR - Natural Rubber
- Suitable for use with lightly corrosive chemicals, highly abrasive slurries and inorganic products.
- Temperature range -20°C/-5°F to +80°C/+175°F
NBR - Nitrile Buna Rubber
- The hose is particularly suitable for use with oily or fatty products and with organic materials.
- Temperature range -20°C/-5°F to +80°C/+175°F
Food Grade - NBRF
- 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
EPDM
- 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
Hypalon - CSM
- 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
Verderprene
- Up to Dura 35 only
- Good chemical resistance, mechanical properties
- Temp. range: 10°C/50°F to +85°C/185°F
- FDA – CFR 21 Parts 170 to 189 – Item 177.2600
- Maximum Discharge Pressure - 3 Bar
Verderflex Tubes - Peristaltic Pumps
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:
- Chemical resistance
- Food grade quality
- Tube life
- Physical compatibility
Verderprene - General purpose tubing
The standard choice for use in peristaltic tube pumps. This white coloured tube has:
- Excellent mechanical strength
- Wide chemical resistance, excellent strength against oxidising agents (ozone, peroxides and hypochlorides)
- Temp. range: +10°C to + 85°C (50°F to 185°F)
- Food Grade Meets FDA and NSF 51 criteria
- Can be autoclaved
- Compatible with most CIP solutions and SIP
- RoHS
Silicone - High Sterility Tubing
A translucent medical/food grade tubing which is odourless, non-toxic and has FDA and USP Class VI approvals. It is:
- Autoclavable and is used in many applications
- Temp. range: - 20 to + 80°C (-4°F to 185°F)
- Meets FDA and EC1935/2004 USP Class VI
- Platinum cured for reduced residual levels of siloxanes and other volatiles
- Reduced spallation than Verderprene
- BfR XV Silicones Regulations
- Ph Eur 3.1.9 Regulation
- RoHS
Verderchem
Verderchem peristaltic tubing is a high-performance, co-extruded product specifically formulated to provide an ideal combination of chemical resistance and pump life. Its inert ultra-smooth, plasticiser-free bore resists the absorption and adsorption of aqueous fluids while the outer jacket provides long flex life in persitaltic pumps. It is:
- Temp. range -60°C to +54°C (-76°F to 165°F)
- Meets FDA criteria
- Outstanding chemical resistanace
- RoHS
Verderhygienic
Formulated to withstand a temperature range from -80°C to 135°C. Verderhygienic tubing will not crack or deteriorate when used in demanding food and beverage applications. Extremely flexible, it resists kinks and retains its shape making installation quick and easy. Its excellent fexural fatigue resistance makes it the absolute best choice for use in peristaltic pumps in dosing and dispensing applications. It is:
- EC1935/2004 regulations
- Temp. range: -80°C to 135°C (-112°F to 275°F)
- Meets FDA criteria
- (EU) No 10/2011
- NSF-51
- RoHS
Verderflex Lubricants - Peristaltic Pumps
Peristaltic hose pumps such as the VF and Dura, require lubrication to work effectively and to maximize 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 - Glycerine based lubricant
- Verderlube is a specially formulated food grade lubricant containing glycerine. This lubricant promotes heat transfer from the hose to the pump casing to maximize hose life.
- The lubricant is blue in colour and can be used at temperatures ranging from -10°C to 50°C (-50°F to 122°F).
Verdersil - Silicon based lubricant
- 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. The temperature range for Verdersil is -50°C to 100°C (-122°F to 212°F).
