Can You Autoclave Peristaltic Pump Tubing? Sterilization Guide for Silicone, PharMed BPT & TPE

Yes—many peristaltic-pump tubing formulations can be sterilized by autoclave, gamma irradiation or ethylene oxide.

But that does not mean every tube sold as silicone, TPE or “medical grade” can be sterilized interchangeably.

The practical question is:

Can this exact tubing formulation tolerate the sterilization method, dose or cycle used in this process and still meet pump, purity and service-life requirements afterward?

That distinction matters because sterilization can alter polymer properties, extractables behavior and pump performance even when the tube remains visibly intact.

Decision Summary

For sterilized peristaltic systems, select by exact grade rather than generic polymer name. Platinum-cured pharmaceutical silicone is commonly available with autoclave, gamma and EtO compatibility. PharMed BPT is specifically designed for peristaltic service and current manufacturer guidance supports autoclaving, gamma and EtO sterilization for the product family. TPE formulations vary more widely, so the exact product and cycle must be checked. After sterilization, verify tube dimensions, flexibility, pump-head fit, flow and any required extractables / biocompatibility documentation before approving repeat use or a supplier change.

Affiliate disclosure: Some links in this guide are affiliate links. If you use them to place an eligible Alibaba order, Equipvia may earn a commission at no additional cost to you. Affiliate status does not determine the technical conclusions in this guide.

Sterilization Compatibility Is a Product-Grade Property

A material label is not enough.

Two silicone tubes may differ in:

• cure chemistry;
• hardness;
• additives;
• filler system;
• manufacturing cleanliness;
• extractables profile;
• validated sterilization methods.

The same is true for TPE.

Current technical documentation for pharmaceutical tubing normally names the supported sterilization methods explicitly.

That should be the buying standard.

Ask the supplier:

Exact product / grade:
Autoclave validated?:
Autoclave temperature / time:
Gamma validated?:
Gamma dose range:
EtO validated?:
Number of repeated cycles:
Post-sterilization property data:
Extractables data after sterilization:

If the answer is only:

“Silicone can be autoclaved”

the evidence is incomplete.

Platinum-Cured Silicone Is the Most Familiar Sterilizable Route

Pharmaceutical-grade platinum-cured silicone is widely used in bioprocess fluid transfer and peristaltic pumping.

Current Thermo Fisher guidance for Nalgene pharma-grade platinum-cured silicone lists it as:

• autoclavable;
• compatible with gamma radiation;
• compatible with EtO;
• suitable for pharmaceutical, laboratory and bioprocess transfer.

Other current pharmaceutical silicone products make similar claims when supported by product-specific validation.

This makes platinum-cured silicone a logical starting route when a process needs:

• transparency;
• high purity;
• flexible tubing;
• repeated steam exposure;
• common bioprocess documentation.

But the exact grade still matters.

Generic food-grade silicone from a marketplace should not inherit the sterilization claims of a pharmaceutical-grade platinum-cured tube.

Autoclave Conditions Must Be Defined

“Autoclavable” is not a complete process specification.

A sterilization cycle has:

temperature
hold time
pressure
number of cycles
tube position
assembly configuration
drying conditions

A tube validated for one cycle may not have evidence for a hotter, longer or repeated cycle.

Manufacturer documentation for sterilizable pharmaceutical tubing often specifies representative conditions such as approximately 121–125°C for a defined time.

Use those values as product evidence, not as a universal rule for all tubing.

For an RFQ, write:

Sterilization method: steam autoclave
Cycle: 121°C
Hold time: 30 minutes
Expected lifetime: 10 cycles

instead of:

Needs to be autoclavable

Repeated Autoclaving Can Be More Important Than One Cycle

A laboratory may sterilize a tube once before use.

A reusable process may sterilize it repeatedly.

Those are different qualification problems.

Current Saint-Gobain guidance states that PharMed BPT can withstand repeated autoclaving. That is especially relevant because PharMed BPT is also designed for long peristaltic flex life.

The combination matters:

sterilization resistance
+
roller fatigue resistance

A tube that survives steam but loses pumping life rapidly after repeated cycles may still be an expensive choice.

Track:

• number of sterilization cycles;
• cumulative pump hours;
• flow drift;
• flattening;
• cracking;
• discoloration;
• hardness change.

Build the replacement interval from the combined sterilization-and-pumping history.

Gamma Irradiation Needs a Dose, Not a Checkbox

Gamma sterilization should be specified by dose range.

A supplier statement such as:

“Gamma compatible”

is incomplete without the validated exposure.

Current pharmaceutical tubing documentation commonly refers to kilogray (kGy) ranges.

The effect of radiation depends on the polymer and dose because irradiation can cause chain scission, cross-linking or changes in additives.

Saint-Gobain's recent PharmaPure technical work, for example, evaluated specific gamma exposures up to 50 kGy and measured post-irradiation performance attributes. That result belongs to PharmaPure and should not be transferred automatically to PharMed BPT, silicone or another TPE.

The sourcing rule is:

Use sterilization data for the exact grade being purchased.

Gamma and Autoclave Can Change More Than Mechanical Strength

Post-sterilization risk is not limited to whether the tube breaks.

A peer-reviewed study of silicone tubing found that autoclave and gamma sterilization produced different subsequent vapor-phase hydrogen peroxide uptake behavior.

That result is application specific, but it illustrates a broader point:

sterilization history can change how a polymer interacts with the process environment.

For biopharmaceutical use, this can make post-sterilization extractables and leachables data relevant.

Research on single-use bioprocess components has also shown that sterilization technology can affect extractables profiles, which is why changes from gamma to X-ray or other sterilization routes require qualification rather than assumption.

EtO Is Useful but Requires Product-Specific Validation

Ethylene oxide is another established sterilization route for compatible tubing.

Its advantage is that it does not expose the polymer to the same heat as an autoclave.

But the buyer still needs to confirm:

• material compatibility;
• validated process;
• residual handling requirements;
• aeration;
• packaging configuration.

Do not infer EtO compatibility from autoclave compatibility.

Current Saint-Gobain pump-tubing guidance explicitly distinguishes supported sterilization methods by product family.

For example, PharMed BPT is listed with autoclave, gamma and EtO compatibility in current medical tubing guidance.

TPE Is Not One Sterilization Category

“Thermoplastic elastomer” covers many formulations.

Some biopharmaceutical TPE tubing is engineered specifically for:

• autoclave;
• gamma;
• X-ray;
• aseptic welding;
• single-use assemblies.

Other TPE formulations may deform or change more significantly under steam.

This is why older industry guidance warns that steam can deform some TPE tubing and recommends validating the intended cycle.

Modern products can perform very well—but only when the exact grade is selected.

Do not write:

TPE = autoclavable

Write:

Specific TPE grade + validated cycle = acceptable

Sterilize the Assembly, Not Just the Polymer on Paper

A tubing assembly can fail sterilization qualification even when the raw tube material is acceptable.

Check:

• connectors;
• clamps;
• barbs;
• cable ties;
• molded junctions;
• caps;
• filters;
• bags.

High temperature can deform a connector or fastening component before the tubing itself fails.

If the tubing is part of a preassembled single-use system, use the validation data for the assembly configuration whenever possible.

A raw-tube datasheet cannot prove that every attached component survives the same process.

Pump Performance Must Be Rechecked After Sterilization

Sterilization can change:

• hardness;
• elasticity;
• compression set;
• dimensions;
• recovery;
• surface condition.

Those properties directly affect peristaltic pumping.

After a new sterilization method, supplier or tubing grade is introduced, verify:

tube seating
head closure
occlusion
priming
actual flow
suction recovery
discharge pressure
motor behavior
short-term wear

If the system is calibrated for dosing, measure flow again after sterilization.

Do not assume that a tube returning from the autoclave has the same displacement per revolution as the pre-sterilized tube.

Related guide: How to Match Peristaltic Pump Tubing to a Pump Head

Extractables and Leachables Matter in Sensitive Processes

For ordinary laboratory transfer, mechanical compatibility may dominate.

For cell therapy, biologics or product-contact pharmaceutical processes, the material evaluation can include extractables and leachables.

A 2021 peer-reviewed study on single-use components emphasized that extractables data should bracket the actual process conditions, including temperature, solvent composition and contact time.

A 2026 study on cell-therapy manufacturing likewise highlighted E&L as an important risk in single-use systems.

Sterilization should therefore be part of the material history used in the risk assessment.

Ask whether the supplier's E&L package covers:

• unsterilized material;
• gamma-sterilized material;
• autoclaved material;
• the dose or cycle relevant to your process.

Requalification Is Required When the Supplier or Sterilization Route Changes

A validated tubing specification should not be treated as permanently interchangeable across suppliers.

Requalification is especially important when changing:

• tubing manufacturer;
• material formulation;
• cure system;
• sterilization method;
• sterilization dose;
• autoclave cycle;
• manufacturing site;
• assembly configuration.

For a low-risk laboratory transfer, requalification may be limited to fit, flow and visual inspection.

For a controlled bioprocess, the review can be broader:

Dimensional check
Hardness / mechanical fit
Post-sterilization flow
Sterilization certificate
Lot traceability
Biocompatibility package
Extractables / leachables data
Change-control documentation

The purpose is not to create paperwork for its own sake. It is to make sure that the validated process still describes the material actually being purchased.

If an existing PharMed BPT tube is replaced by a generic TPE product, the new tube should not inherit the old product's sterilization history or E&L package merely because both are thermoplastic elastomers.

Build a Sterilization-Specific Replacement Record

For reusable tubing, combine sterilization history with pump-life data.

A practical maintenance record can include:

Tubing lot
Sterilization method
Cycle / dose
Number of sterilization cycles
Pump hours after each cycle
Measured flow
Visual condition
Removal reason

This helps distinguish two failure modes:

mechanical wear from pumping
vs.
property change associated with sterilization history

If a tube repeatedly shows acceptable flow for 500 pump hours when unsterilized but begins drifting much earlier after several autoclave cycles, the maintenance interval should be based on the sterilized condition.

The same principle applies to gamma-sterilized single-use tubing: use the post-sterilization product data and actual process performance, not the properties of the unsterilized raw polymer.

Current Affiliate Route

This intent has a natural commercial path because sterilizable tubing is also a repeat replacement component.

PharMed BPT — documented sterilizable pump-tubing route

Role: repeated-duty bioprocess or laboratory replacement where sterilization support and pump life both matter.

Why it fits: current Saint-Gobain guidance identifies PharMed BPT as purpose-built peristaltic tubing, supports repeated autoclaving, and lists autoclave, gamma and EtO among sterilization methods for the product family.

Risks:

• verify that the marketplace product is the exact genuine grade;
• confirm dimensions and pump-head fit;
• request current sterilization and biocompatibility documentation;
• do not assume the supplier's listing itself is validation evidence.

Generic silicone listings should remain sample-only unless documented

Previously validated marketplace silicone products can still be useful for mechanical fit or general maintenance.

They should not be promoted as sterilization-qualified merely because the material is called silicone.

For sterilized bioprocess use, require the exact grade, sterilization method, cycle and documentation first.

This is a case where one strong product role is better than forcing several weaker affiliate options.

What to Put in a Sterilization RFQ

Use this block:

Pump brand / model:
Pump-head model:
Tube size / number:
ID × OD × wall:
Material / grade:
Hardness:

Sterilization method:
Autoclave temperature:
Autoclave hold time:
Gamma dose:
EtO requirement:
Expected number of cycles:

Fluid:
Process temperature:
Pump RPM:
Hours per day:
Pressure:

Required documentation:
Biocompatibility requirement:
Extractables / leachables requirement:
Lot traceability:
Sample quantity:

Then request the supporting document for every claimed sterilization method.

Common Mistakes

Assuming all silicone is autoclavable

The exact grade and cycle still need evidence.

Treating one gamma dose as universal

Radiation response is dose and formulation dependent.

Ignoring repeated cycles

One-cycle compatibility does not prove ten-cycle service life.

Checking raw tubing but not the assembly

Connectors and fasteners can become the weak point.

Skipping post-sterilization flow verification

Mechanical properties can change enough to affect pumping.

Final Takeaway

Sterilization compatibility is an exact-product qualification problem, not a generic material label.

The correct sequence is:

sterilization method → exact tubing grade → validated cycle or dose → assembly compatibility → pump-head fit → post-sterilization flow check → E&L / documentation review → replacement interval

Pharmaceutical-grade platinum-cured silicone and PharMed BPT both have strong sterilization use cases when the exact product documentation supports the process.

TPE can also be highly suitable, but formulation-specific validation is essential.

For procurement, the strongest request is not:

“Is this tubing sterilizable?”

It is:

“Show the validated sterilization method, cycle or dose for this exact grade, and the post-sterilization data relevant to my pump and process.”

That closes another independent high-value intent inside the Peristaltic Pump Replacement Tubing Single Point without turning the cluster into endless chemical-by-chemical expansion.