Rotho peristaltic pump tubes and replacement

The tube: the heart of the pump

The tube is made from elastomer of an appropriate thickness to give it the right mechanical resistance to compression and chemical compatibility to withstand transit of the various liquids pumped.
It is reinforced with 2, 4 or 6 textile inserts, varying in texture and number according to the required pressure resistance. The textile inserts are fundamental to allow the tube to return immediately to its original round shape after compression.

TUBECOMPOSITIONCOMPATIBILITYΔT (°C)ΔP (BARS)WORKING LIFEFOOD
CLASSIFICATION
S.I.P.
C.I.P.
NRNatural Isoprene
(multilayer)
  • abrasive liquids
  • moderately aggressive liquids
  • high pressures
-10
+85
-0.9
+8 (15)
•••••
NPFood substrate
Natural Isoprene
(multilayer)
  • aqueous liquid foods
  • moderately aggressive liquids
-10
+75
-0.9
+6 (8)
•••••FDA-CFR 21
Parts 170 to 199
Item 177.2600
*
EPMonomer
Ethylene Propylene
EPDM (multilayer)
  • chemicals
  • acids
-10
+95
-09
+6 (8)
•••
RN
Nitrile-Butadiene
substrate (multilayer)
  • oils
  • fats
  • hydrocarbons
  • various solvents
-10
+75
-09
+6 (8)
•••
RFFood substrate
Nitril-Butadiene
(multilayer)
  • foods
  • oils
  • fats
-10
+75
-09
+6 (8)
•••FDA 177.2600
DM 21-3.73 IV B
*
HYHypalon substrate Polyethlene Chlorosulphonate (multilayer)
  • concentrated acids
  • alkaline liquids
  • high pressures
-10
+85
-0.9
+8
•••••
PHThermoplastic Polypropylene (homogeneous)
PSF and MSO series only
  • pharmaceutical products
  • foods
-20
+135
-0.5
+1.5 (2)
•••••FDA 177.2600
NSF CRITERIA
**

* To sterilize with water 50°C and nitric acid solution 1% or acetic acid 10% or sodium hydroxide 15% for max 10/15 min. Rinse with cold water. Washing with steam to 120°C, max 3 minutes.

** Sanitise with hot water and neutral soap. Rinse with distilled water. Can be sterilised in an autoclave

How to replace the Rotho tube