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Service Parts

Replacement parts to support ongoing maintenance and repair of leak detection and vacuum systems. Available parts include components for helium leak detectors, vacuum pumps, gas management systems, helium concentration testers, and more.

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LHCT03-R Diaphragm pump

Internal Diaphragm Pump for Helium Concentration Tester

Internal Diaphragm Pump for Helium Concentration Tester

This compact, oil-free diaphragm pump is the replacement unit for LACO’s LHCT03 Helium Concentration Tester (internal pump version). With its quiet operation and lightweight design, it’s ideal for environments where minimal noise and space are important. Capable of being mounted in any orientation, this pump provides reliable performance and long service life with minimal power consumption. It can function as either a vacuum pump or a low-pressure compressor, offering added versatility for helium sampling applications.

Features

  • Compatible with LHCT03 internal pump model
  • Oil-free operation for clean, maintenance-friendly performance
  • Compact and lightweight—just 0.88 lbs (0.4 kg)
  • Operates quietly and efficiently at 24 VDC
  • Supports vacuum or low-pressure applications
  • 100% duty cycle for continuous use

All prices are in US$. Website pricing is good only for the USA. Please call for International pricing.

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Urethane Washer Replacement for LSP-LCT-5

Urethane Washer Replacement for LSP-LCT-5

Urethane Washer Replacement for LSP-LCT-5

This replacement urethane washer is used with the LSP-LCT-5 sniffer probe to create a reliable seal during helium concentration testing. It fits over the barb fitting at the sniffer tip and presses against the airbag initiator body to prevent leakage during sampling. Made from 50-durometer urethane, the washer is durable, flexible, and easy to replace when worn or damaged.

Features

  • Replacement washer for LSP-LCT-5 sniffer probe
  • Forms a seal between the probe and airbag initiator
  • Made from 50-durometer urethane for flexibility and durability
  • Dimensions: 8 mm outer diameter × 3 mm thick
  • Ideal for maintaining test integrity and repeatability

All prices are in US$. Website pricing is good only for the USA. Please call for International pricing.

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LHCT Membrane

LHCT Membrane

LHCT Membrane

This replacement membrane is designed for use with LACO’s LHCT03 and LHCT03-R Helium Concentration Testers. Measuring 1.18″ in diameter, the membrane plays a key role in stabilizing helium sampling. If your tester is showing unstable or fluctuating readings, replacing the membrane can help restore accurate and consistent results.

Features

  • Replacement membrane for LHCT03 and LHCT03-R testers
  • 1.18″ (30 mm) diameter
  • Helps stabilize helium concentration readings
  • Quick replacement to restore system accuracy
  • Refer to user manual for installation instructions

All prices are in US$. Website pricing is good only for the USA. Please call for International pricing.

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LHCT Probe Tip Assembly

Helium Concentration Tester

LHCT Probe Tip Assembly

LHCT Probe Tip Assembly

The LHCT Probe Tip Assembly is a replacement tip for the sniffer probe used with LACO’s Helium Concentration Testers (LHCT03 and LHCT03-R). This 10-32 threaded barb fitting features an integrated 30-micron bronze filter and is designed to puncture the foil on airbag inflators for direct helium sampling. If the tip becomes clogged or damaged during use, this replacement assembly restores proper function and sampling accuracy.

Features

  • Replacement tip for LHCT sniffer probes
  • 10-32 threaded barb fitting with integrated 30-micron bronze filter
  • Designed to puncture foil seals on airbag inflators
  • Ensures accurate helium sampling during concentration tests
  • Replace when clogged or worn from repeated use

All prices are in US$. Website pricing is good only for the USA. Please call for International pricing.

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Helium Concentration Tester Sniffer Probe

Helium Concentration Tester

Helium Concentration Tester Sniffer Probe

Helium Concentration Tester Sniffer Probe

The LSP-HCT-5 Sniffer Probe is the standard sample probe used with LACO’s Helium Concentration Tester. Designed for ease of use and reliable performance, this probe features a calibrated flow and quick connection, making it ideal for production and R&D environments.

Features

  • Male quick-connect fitting for fast and secure attachment
  • 120 sccm calibrated flow rate for accurate sampling
  • Includes spare probe tip, integrated filter, and 5 ft of hose
  • Compatible exclusively with LACO’s Helium Concentration Tester (LHCT03 series)

All prices are in US$. Website pricing is good only for the USA. Please call for International pricing.

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Sniffer Tip Assembly for LSP-HCT-5 Sniffer Probes

LSP-HCT-5 Sniffer Tip Assembly

LSP-HCT-5 Sniffer Tip Assembly

Replacement sniffer tip assembly for the LSP-HCT-5 probe. Use this part if the probe is clogged and replacing the filter does not resolve the issue. Designed to maintain the calibrated flow rate and ensure consistent helium sampling performance.

Features

  • 120 sccm calibrated flow
  • Replacement tip for LSP-HCT-5 sniffer probes
  • Maintains accurate helium sampling
  • Refer to the user manual for replacement instructions

All prices are in US$. Website pricing is good only for the USA. Please call for International pricing.

Resources

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