Around the world, designers and manufacturers of liquid handling, liquid chromatography, mass spectrometry, and clinical analysis equipment trust our springs and seals to prevent leakage, contamination, and system breakdown. Our products have supported some of the biggest performance advances in this industry.
Why Choose Bal Seal for Analytical Instruments?
Analytical instrument designers rely on Bal Seal components when precision, chemical compatibility, pressure capability, and low contamination are critical to instrument performance.
High-Pressure Sealing Performance
Our spring-energized seals and Enduris® sealing solutions are engineered to perform in pump systems operating from aspiration to 20,000+ psi.
Chemical Compatibility & Cleanliness
PTFE, PEEK, and specialty polymer materials help maintain sample integrity while resisting aggressive solvents, buffers, and process media.
Reduced Downtime & Contamination
Low-shedding designs and long seal life help improve throughput, minimize maintenance, and support more reliable instrument operation.
Products for Analytical Instruments

Bal Seal® Reciprocating Flange Seal
Our reciprocating flange seals, which combine proven Bal Spring® canted coil spring energizer technology with advanced polymer formulations, are proven performers in high performance liquid chromatography. In pressures from aspiration to 18,000+ psi and temperatures lower than 5 °C, they seal consistently for more cycles, making better sample resolution and faster throughput a reality.
Product Features
- Controllable friction forces
- Excellent chemical stability in a wide range of media
- Tight tolerances
- Available with anti-extrusion backup

Enduris® High Pressure Sealing System
Our Enduris® high pressure sealing system combines proven Bal Spring® canted coil spring technology, advanced polymer formulation, and a precision-engineered backup element to deliver pump sealing performance that lasts. It offers OEMs the ability to increase liquid chromatography throughput and sample resolution while significantly reducing equipment downtime.
Product Features
- Maintains chemical stability in all UHPLC media
- Backup supports seal, prevents extrusion
- Superior extrusion resistance at 20,000+ psi

Bal Spring® Canted Coil Spring
Our Bal Spring® canted coil spring mechanically fastens, conducts electricity, and shields sensitive electronics from EMI/RFI. Its independent coils, which serve as multiple contact points for optimal current carrying capability, ensure consistent, reliable connection—leading to less contamination, more accurate m/z measurement and minimal downtime.
Product Features
- Superior conductivity & power density
- Compact, space-saving profile
- Wear-resistant for minimal contamination
- Customizable insertion/removal forces
Chromatography Applications
Laboratory Equipment Applications
Analytical Instrument Sealing & Connectivity Solutions
Bal Seal Engineering supports chromatography, spectroscopy, and diagnostic systems with precision sealing and spring technologies.
HPLC & UHPLC Systems
Reciprocating seals and Enduris® sealing systems support extreme-pressure pump designs while helping improve throughput and sample resolution.
Mass Spectrometry
Electrical contact springs provide reliable grounding and conductivity while minimizing contamination and supporting accurate signal performance.
Gas Chromatography
Advanced polymer seals help maintain chemical stability and sealing performance in elevated-temperature analytical environments.
Clinical & Diagnostic Systems
Custom sealing components support fluid handling, dispensing, and sample processing in analyzers where reliability and cleanliness are essential.
Sample Prep & Liquid Handling
Low-friction seal solutions help improve repeatability in syringes, valves, and other precision fluid-control hardware.
Spectroscopy & Elemental Analysis
Material options including PTFE and PEEK are available for chemically aggressive and high-performance analytical applications.
Analytical Industry Achievements

Validating Vaccines
Designers use our Bal Spring® in mass spectrometers to cut contamination and get more accurate m/z results. With these complex instruments, scientists have tested and validated >1M drugs and vaccines.

Testing for Diabetes
“False positives” can disrupt lives, destroy productivity, and damage reputations. Our Bal Seal® helps improve the accuracy of clinical analyzers that perform diabetes testing for tens of thousands of patients.

Performing Under Pressure
From the early days of LC, we’ve helped instrument makers push pressure boundaries in search of more resolution and throughput. Today, we’re designing seals and sealing systems for pumps that generate >22 kpsi.
Analytical Instrument FAQs
Bal Seal spring-energized reciprocating seals and Enduris® sealing systems are designed for demanding liquid chromatography pump applications where low friction, chemical stability, and long service life are required.
Low-shedding seal materials and precision spring designs help reduce particle generation and support cleaner operation in mass spectrometry, chromatography, and diagnostic equipment.
Bal Seal offers material options including PTFE, PEEK, and specialty polymers to address aggressive solvents, buffers, and process media used across analytical instrumentation.
Yes. Our sealing systems are designed for pump applications operating at pressures exceeding 20,000 psi, helping OEMs improve throughput and sample resolution.
Bal Spring® technologies are used where electrical conductivity, grounding, and reliable mechanical performance are required, including in mass spectrometry and other precision instrument assemblies.
Yes. Bal Seal Engineering develops application-specific solutions for pump sealing, fluid handling, grounding, and motion-critical instrument components based on pressure, media, and cycle-life requirements.
Request Analytical Instrument Engineering Support
Our engineering team can help you evaluate seal life, pressure capability, material compatibility, and connectivity requirements for your analytical instrument application.
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