Shenzhen Forbest specializes in silicone tubing for peristaltic pump applications. Standard tubing wears out fast in pump heads—it takes a set, loses occlusion, and contaminates fluid lines. Our tubing is formulated specifically for the mechanical stress of continuous pumping.
We use platinum-cured silicone, post-cured to remove low-molecular-weight fractions, and controlled to a 50 Shore A durometer. This combination gives you extended pump life, consistent flow rates, and minimal extractables. It is the standard choice for aseptic filling, diagnostic analyzers, and bioreactor feed lines.
Peristaltic pumps work by compressing tubing against a track. That repeated compression fatigues most silicones quickly. Shenzhen Forbest silicone tube for peristaltic pump is designed to survive that environment while keeping your fluid stream clean.
Pump Life
We formulate specifically for flex fatigue resistance. The target hardness of 50 Shore A is intentional—soft enough to occlude fully without stalling the motor, firm enough to recover shape between roller passes. In testing at 600 RPM continuous run, this tubing exceeds 200 hours before failure. That means less downtime and consistent flow rates through the life of the tube.
Clean Fluid Path
This is platinum-cured tubing. No peroxide catalysts means no DCP breakdown products leaching into your media. We post-cure every batch to drive out low-molecular-weight siloxanes. The inner bore is smooth, which reduces protein binding when you’re running biological solutions. For vaccine production or cell culture work, that matters.
Tested and Documented
Every lot is tested for USP Class VI and ISO 10993 compliance. Endotoxins are <0.25 EU/ml. Particulates meet USP requirements. If you’re in a regulated space, the documentation is available.
Sterilization
The tubing handles multiple sterilization cycles. Autoclave at 121°C for 30 minutes—it holds up. Gamma irradiation at 25-45 kGy works for single-use assemblies. No significant degradation with either method.
Custom Work
We supply continuous lengths, cut pieces, or pre-assembled pump segments. Need a non-standard ID/OD? Need color stripes for line ID? Need cleanroom double-bagging? We do that. Factory direct means flexible lead times and reasonable minimums.
Technical Specs & Size Guide
Here is how our peristaltic-grade tubing compares to standard silicone, followed by our standard size offering.
Peristaltic Pump Grade vs. General-Purpose Silicone
| Parameter | Shenzhen Forbest Pump Grade | General-Purpose Tubing |
|---|---|---|
| Cure System | Platinum | Usually Peroxide |
| Hardness | 50 Shore A ±5 | 60-70 Shore A |
| Pump Life @ 600 RPM | >200 hours | Typically <50 hours |
| Inner Surface | Smooth, low adsorption | Standard finish |
| Extractables | Very low, post-cured | Higher leachables |
| Typical Use | Biopharma, diagnostics, filling | Water transfer, air lines |
Standard Size Chart (Pump Bore Sizes)
We stock tooling for all common peristaltic pump bores (sizes 13 through 92). Metric equivalents available.
| Bore Size | Inner Diameter | Outer Diameter | Wall | Common Applications |
|---|---|---|---|---|
| 13# | 0.8 mm | 4.0 mm | 1.6 mm | Micro-dosing, low-flow analyzers |
| 14# | 1.6 mm | 4.8 mm | 1.6 mm | Lab pumps, diagnostic equipment |
| 16# | 3.2 mm | 6.4 mm | 1.6 mm | General lab, filling machines |
| 25# | 4.8 mm | 8.0 mm | 1.6 mm | Bioreactor feed, media transfer |
| 15# | 4.8 mm | 9.6 mm | 2.4 mm | Higher pressure pumping |
| 17# | 6.4 mm | 9.6 mm | 1.6 mm | Bulk transfer, perfusion |
| 24# | 6.4 mm | 11.2 mm | 2.4 mm | Thick-wall, higher pressure |
| 35# | 7.9 mm | 12.7 mm | 2.4 mm | Large volume filling |
| 36# | 9.6 mm | 14.4 mm | 2.4 mm | High-flow transfer |
| 73# | 9.6 mm | 16.0 mm | 3.2 mm | Heavy-duty pumping |
| 82# | 12.7 mm | 19.1 mm | 3.2 mm | Bioprocess harvest |
| 90# | 19.1 mm | 31.9 mm | 6.4 mm | High-capacity transfer |
Tolerances: ID ±0.1 mm, OD ±0.15 mm. Concentricity within 0.1 mm.
Physical Properties
| Property | Value | Test Method |
|---|---|---|
| Tensile Strength | ≥8 MPa | ASTM D412 |
| Elongation | ≥350% | ASTM D412 |
| Tear Strength | ≥30 kN/m | ASTM D624 |
| Compression Set | ≤5% | ASTM D395 |
| Burst Strength | 0.74 – 0.97 MPa | Internal |
| Vacuum Resistance | >75 kPa | Internal |
| Bend Radius | 4 x OD | ASTM D790 |
Why Shenzhen Forbest?
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Factory Direct: You work with the production team, not a distributor.
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Consistency: Tight process control. What you qualify matches production runs.
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Traceability: Every batch documented. COAs and validation guides available.
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Responsiveness: Need samples for pump testing? Need a durometer adjustment? We move fast.
Contact Shenzhen Forbest for samples, technical data, or to discuss a custom silicone tube for peristaltic pump projects.