PUMP TUBING
Tubing That Decides How Long Your Pump Stays Productive
Platinum-cured silicone for pure transfer, PTFE-lined composite for chemical attack — seven standard sizes from 13# to 18#, rated -40 to 200°C.
Material Options
| Material | Key Property | Temperature | Best For |
|---|---|---|---|
| Platinum-Cured Silicone | Ultra-pure, low extractables | -40 to 200°C | Clean fluids, biotech, food |
| PTFE-Lined Composite | Chemically inert inner bore | Chemical duty | 98% sulfuric acid, 40% NaOH |
Size Chart (13# - 18#)
Standard peristaltic tube sizes with inner and outer diameters in millimetres. All sizes available in platinum-cured silicone; PTFE-lined composite on request.
| Tube No. | Inner Ø (mm) | Outer Ø (mm) | Typical Use |
|---|---|---|---|
| 13# | 0.8 | 4.0 | Low-flow dosing, small instruments |
| 14# | 1.6 | 4.8 | Lab transfer, reagent dosing |
| 16# | 3.1 | 6.3 | General lab and production transfer |
| 19# | 2.4 | 4.8 | Medium-flow transfer, filling |
| 25# | 4.8 | 8.0 | Higher-flow transfer on YZ35 heads |
| 15# | 4.8 | 8.0 | High-flow silicone duty |
| 17# | 6.4 | 9.6 | High-flow transfer, slurry handling |
| 18# | 7.9 | 11.1 | Maximum-flow duty up to 4560 ml/min |
* Standard industry sizing. Confirm exact dimensions with the current datasheet before production runs.
Why Buyers Standardise on PERIFLOW Tubing
Platinum-Cured Purity
No peroxide by-products — low extractables and excellent biocompatibility for biotech and pharmaceutical transfer.
PTFE-Lined Chemical Armor
A PTFE inner liner shrugs off media that destroys plain silicone — including 98% sulfuric acid and 40% NaOH.
Seven Standard Sizes
13# to 18# plus 19# and 25# cover the full flow window from 0.014 to 4560 ml/min on YZ15/YZ35 heads.
Wide Temperature Range
Silicone tubing operates from -40°C to 200°C, so cold reagent lines and hot-fill processes both stay reliable.
Long Flex Life
Consistent wall thickness and even roller compression mean predictable service life — and predictable maintenance schedules.
Traceable, Packed for Production
Laser-marked sizes and clean packing options (single sets or bulk reels) for OEM and distributor programs.
Applications
FAQ
Questions Buyers Ask
What is the difference between silicone and PTFE-lined tubing?
Platinum-cured silicone is the all-round choice — pure, flexible and rated -40 to 200°C. PTFE-lined composite adds an inert inner liner for aggressive chemicals like 98% sulfuric acid or 40% NaOH that would degrade silicone.
Which tube size do I need?
Match the bore to your flow window. Small bores (13#/14#) suit low-flow dosing; larger bores (17#/18#) deliver the top of the range up to 4560 ml/min on YZ35 heads.
Can I use the same tubing on all PERIFLOW heads?
Yes — YZ15, YZ35 and LP15-6 heads all accept the standard 13#-18# family, plus 19# and 25# where the head supports it. One tubing inventory across your machines.
How does the -40 to 200°C rating work in practice?
Silicone stays flexible at cold temperatures and survives hot processes up to 200°C. For sustained high temperatures or steam exposure, confirm the cycle conditions with us — we will spec the right material.
Can you cut and pre-pack tubes to length?
Yes. We supply cut-to-length tube sets per pump head, bulk reels for production, and custom lengths for OEM assemblies.
How often should I replace pump tubing?
Replace on a fixed schedule based on hours of use, speed and fluid aggressiveness. In continuous light duty, platinum silicone often runs for months; heavy chemical duty may need faster changes — we help you set the interval.
Which Tubing Material Fits Your Fluid?
Tell us your fluid, temperature and duty cycle — we will spec the right tube material and size within 24 hours.