LongerPump Viton® Fluoroelastomer Peristaltic Pump Tubing

Overview

LongerPump Viton® fluoroelastomer peristaltic pump tubing is engineered for extreme chemical resistance and thermal stability in demanding fluid-handling applications. Constructed from 100% virgin Viton® (FKM) fluoroelastomer—synthesized via copolymerization of vinylidene fluoride and hexafluoropropylene—this tubing delivers exceptional inertness against aggressive media commonly encountered in analytical laboratories, pharmaceutical manufacturing, chemical synthesis, and industrial process control. Its operational principle relies on mechanical compression within peristaltic pump heads; the tubing’s elastomeric resilience ensures consistent occlusion recovery, pulse-free flow, and minimal particle generation—critical for maintaining fluid integrity and system sterility. Unlike silicone or EPDM alternatives, Viton® exhibits intrinsically low gas permeability, high tensile strength retention after prolonged chemical exposure, and resistance to compression set under continuous flexing.

Key Features

• Chemical resistance profile validated against >200 common reagents including concentrated sulfuric acid (98%), nitric acid (70%), sodium hydroxide (50%), chlorinated solvents (e.g., chloroform, carbon tetrachloride), aromatic hydrocarbons (e.g., benzene, xylene), aliphatic fuels (e.g., diesel, aviation gasoline), and halogenated refrigerants.
• Continuous service temperature range: –40 °F to +400 °F (–40 °C to +204 °C); short-term intermittent exposure up to +600 °F (+316 °C) without irreversible deformation or loss of sealing integrity.
• Low extractables profile compliant with USP Class VI biological reactivity testing; suitable for use in GMP environments where leachable risk must be minimized.
• Consistent wall thickness tolerance (±0.002 in / ±0.05 mm) and durometer hardness (Shore A 70–75) ensure predictable pump head engagement and flow rate reproducibility across batches.
• Non-marking black compound formulation with inherent UV and ozone resistance—maintains mechanical properties during extended ambient storage or outdoor conduit routing.

Sample Compatibility & Compliance

This tubing is compatible with all standard peristaltic pump platforms utilizing roller, shoe, or wiper-style occlusion mechanisms—including LongerPump LSP, BT, and YZ series—and conforms to dimensional specifications per ISO 8535-1:2016 for peristaltic pump tubing interchangeability. It meets ASTM D1418 classification for FKM elastomers and complies with FDA 21 CFR §177.2600 for repeated-use food-contact applications. While not certified for sterile barrier applications per ISO 11135, it supports terminal sterilization via ethylene oxide (EtO) or gamma irradiation (up to 50 kGy) when validated per user-specific protocols. Documentation includes material traceability (lot-specific CoA), RoHS 2011/65/EU declaration, and REACH SVHC screening report.

Software & Data Management

As a passive consumable component, the tubing itself does not integrate with digital systems. However, its performance characteristics directly impact data fidelity in automated workflows: consistent inner diameter and elasticity enable accurate volumetric delivery calibration in systems governed by ASTM E2758-21 (Standard Practice for Calibration of Peristaltic Pumps). When deployed in regulated environments (e.g., pharmacopeial assays per USP , EPA Method 300.0), users are advised to maintain logbooks documenting lot number, installation date, cumulative runtime hours, and visual inspection records for compliance with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• High-purity reagent delivery in ICP-MS, HPLC, and IC sample introduction systems where metal ion leaching or organic interference must be eliminated.
• Corrosive titrant transfer in automated potentiometric titrators operating with hydrobromic or perchloric acid solutions.
• Fuel additive dosing in engine test benches requiring compatibility with ethanol-blended gasoline and biodiesel blends (B20).
• Waste stream handling in semiconductor fab wet benches exposed to buffered oxide etch (BOE) and ammonium hydroxide-based cleans.
• Pharmaceutical API synthesis reactors involving anhydrous HF, acetyl chloride, or phosphorus trichloride feed lines.

FAQ

What is the expected service life under continuous operation at 120 rpm with 30% occlusion?
Typical lifespan ranges from 100–300 hours depending on fluid chemistry, temperature, and pump head geometry; accelerated aging studies per ASTM D573 recommend periodic visual inspection for surface cracking or permanent flattening.
Can this tubing be autoclaved?
No—autoclaving (121 °C saturated steam) exceeds continuous service limits and induces rapid crosslink degradation; alternative sterilization methods include EtO or gamma irradiation.
Is it compatible with hydrogen peroxide solutions?
Yes, up to 30% w/w at ambient temperature; however, prolonged exposure to >6% H₂O₂ above 40 °C may accelerate surface oxidation—validation under actual process conditions is recommended.
Does LongerPump provide tubing cut-to-length services with certified dimensional verification?
Yes—custom lengths (±0.5 mm tolerance) with NIST-traceable caliper certification are available upon request for critical flow-path applications.
How does Viton® compare to Kalrez® or Chemraz® in peristaltic service?
While Kalrez® (FFKM) offers broader chemical resistance, Viton® provides optimal cost-performance balance for most laboratory and pilot-scale applications; Chemraz® is typically reserved for ultra-high-purity semiconductor or aerospace fuel systems where ppm-level fluorine outgassing must be avoided.