Gas Purification

Note: Replacement trap only—fittings sold separately (connectors or double connectors).

Click here for specifications.

Note: Replacement trap only—fittings sold separately (connectors or double connectors).

Click here for specifications.

Note: Replacement trap only—fittings sold separately (connectors or double connectors).

Click here for specifications.

Flowmeters that can measure flammable gases are becoming mandatory, due to the increased use of hydrogen in chromatography. With its Ex rating, the Restek ProFLOW 6000 Flowmeter is designed specifically with explosive and flammable gases in mind.

Restek Recommends: Recalibrate your ProFLOW 6000 Flowmeter once every year. Prolonged failure to recalibrate your unit may result in increased error. To always get the most accurate flow measurements, contact Customer Service to send in your flowmeter for recalibration (cat.# 22656-R).

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Click here for frequently asked questions about our ProFLOW 6000 flowmeter.

Technical Articles:
A Primer on Gas Flow
A Primer on Control Systems

• Optimized sample flow path.
• New ergonomic, hand-held design.
• Handy probe storage for cleanliness and convenience.
  
  Restek Recommends: When your Leak Detector batteries need to be replaced, send the unit to us for a routine maintenance review to ensure continued sensitivity and reliability. We will replace not only the batteries, but also the probe and internal/external tubing. We will also recertify your unit. Contact Customer Service to send in your Leak Detector for maintenance (cat. #22839-R).
  
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• Oxygen: green to grey
• Moisture: beige to clear
  
  Note: Fittings sold separately (connectors or double connectors).

Helium-Specific Click-On Inline Super-Clean Gas Trap and Kits are designed specifically for purification of helium in GC/MS systems.

Note: Replacement trap only—fittings sold separately (connectors or double connectors).

Click here for specifications.

• High-purity output ensures 99.9999% pure gas.
• Click-On fittings for easy, leak-tight cartridge changes; brass or stainless steel, 1/4″ or 1/8″.
• Triple Gas Trap is ideal for purifying carrier gas—it contains oxygen, moisture, and hydrocarbon scrubbers in one cartridge.
• Fuel Gas Trap is ideal for purifying flame ionization detector (FID) fuel gases, removing both moisture and hydrocarbons.
• Helium-Specific Triple Gas Trap is ideal for GC/MS—it contains oxygen, moisture, and hydrocarbon scrubbers in one cartridge.
  
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• Specifically designed for purification of helium in GC/MS systems.
• Traps are packed and conditioned using helium.
• Uses standard single-position baseplate.

Restek Super-Clean ultra-high capacity oxygen filter cartridges feature easy-to-read indicators.

The indicator code is shown on every trap so there is no confusion determining when a trap needs to be replaced.

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Restek Super-Clean ultra-high capacity moisture filter cartridges feature easy-to-read indicators.

The indicator code is shown on every trap so there is no confusion determining when a trap needs to be replaced.

Click here for specifications.

Click here for specifications.

Connects any Click-On trap to a Click-On indicator.

Click-On connectors allow you to change traps quickly, without introducing oxygen into your system.

Base plates can be mounted by using screws and the mounting holes on the base plate, or by using this optional wall mounting bracket.

• Changing filters is quick and easy.
• Up to 20 L of hydrocarbon-free nitrogen per minute.
• Filters connected in parallel to handle high flows of LC/MS.

• Use an in-line pressure gauge to indicate when a thermal gas purifier getter tube should be replaced.
• Includes 1/8″ tee and 0–100 psi (0-689k Pa) gauge.

To adapt 1/8″ Super-Clean base plate fittings to 1/4″, use 1/8″ to 1/4″ tube-end unions.

Pack includes 10 large O-rings and 10 small O-rings.

• High-purity output ensures 99.9999% pure gas (at max. flow of 2 L/min.).
• “Quick connect” fittings for easy, leak-tight cartridge changes.
• Glass inside to prevent diffusion; polycarbonate housing outside for safety.
• All traps measure 10 5/8″ x 1 3/4″ (27 x 4.4 cm).
• Each base plate unit measures 4″ x 4″ x 1 7/8″ (10.2 x 10.2 x 4.8 cm).
  
  Click here for specifications.

• Standard base plate fittings are 1/8″. To adapt to 1/4″, order 1/8″ to 1/4″ tube-end unions.
• End fittings available in brass or stainless steel.
• Base plates fit all stand alone Super-Clean gas filters offered.
  
  Each base plate unit measures:
  4″ x 4″ x 1 7/8″ (10.2 x 10.2 x 4.8 cm)

Each replacement getter tube has 12 L oxygen and 35 L water vapor capacity at a minimum flow rate of 1 liter/minute and removes oxygen, water, carbon monoxide, carbon dioxide, hydrocarbons (except methane) to ppb levels; pure enough for MS. Typically requires replacement once per year.

• Removes hydrocarbons and other contaminants.
• Reduces organics to 0.1 ppm (assuming 100 ppm input).
• Each individually activated to ensure maximum efficiency.
• Fits in GC oven for easy thermal recharging.
• Maximum operating pressure: 60 psi (414 kPa).

• Reduces the release of hazardous materials from the ECD vent into the lab.
• Includes connecting lines and mounting kit.

• Replace separate oxygen, moisture, and hydrocarbon traps with one multiple-bed purifier, specific for purifying helium, hydrogen, nitrogen, or air.
• Reduce gas impurities from ppm to low ppb levels.
• Decrease baseline noise and increase GC/MS sensitivity.
• Prepurged with the specified gas, to shorten downtime.

• Pass compressed air from an oil-filled air compressor through this trap, to remove oil vapors and mist.
• Indicator changes from pale pink to deep pink.

• Reduces the release of hazardous materials from the capillary split vent into the lab.
• Includes connecting lines and mounting kit.

• Removes trace impurities from carrier gas.
• Reduces organics to 0.1 ppm (assuming 100 ppm input).
• 60 µm frit prevents gas contamination by purifier particles.
• Good for purge & trap systems.
• Refillable and rechargeable.
• Maximum operating pressure: 125 psig (862 kPa).
• Maximum flow: 5 L/min.

• Packed with an extremely high surface area, baked coconut shell-based activated carbon.
• Purged with ultra-high purity helium.
• Reduces organics to 0.1 ppm (assuming 100 ppm input).
• Maximum operating pressure: 250 psi (1,724 kPa).

• Reduces water to less than 10 ppb; indicator changes from yellowish-green to blue at 5% relative humidity.
• Prepurged for fast stabilization.
• Reduces noise from high-sensitivity detectors.
• Heavy-walled glass body prevents oxygen & water infusion.
• 10 µm frit prevents microparticulate damage to needle valves and flow controllers.
• Maximum operating pressure: 100 psi (689 kPa).

• Purged with ultra-high-purity helium; ready to use.
• Reduces water to less than 15 ppb.
• Maximum operating pressure: 250 psi (1,724 kPa).
• Maximum flow: 1.25 L/min.

• Traps water vapor; increases column and oxygen trap lifetime.
• Reduces baseline noise from sensitive detectors such as ECDs and mass spectrometers.
• Activated and ready to use.
• Reduces water to less than 1 ppm.
• Fits in GC oven for easy thermal recharging.
• Maximum flow: 1 L/min.

• Removes up to 600 mg of oxygen or 2 g of water.
• Long life—typically purifies more than five 200 ft³ cylinders.
• Reduces oxygen to 15 ppb.
• Maximum operating pressure: 250 psi (1,724 kPa).
• Flow: 3 L/min. @ 32 psi (221 kPa).

• Easy to install.
• Attach to same fittings as original manufacturer's equipment.
• Built-in frits retain fine particles; adsorbents remove both moisture and hydrocarbons.

• Indicator changes from light green to grey as oxygen is trapped.
• Heavy-walled glass body, protected by polycarbonate sleeve, prevents oxygen & water infusion.
• Prepurged for fast stabilization.
• 100 psi (689 kPa) maximum operating pressure.
• Reduces oxygen to 0.1 ppm.
• 10 µm frits at inlet and outlet.

• Indicator changes from dark blue to black as oxygen & water are trapped.
• Lasts longer than three smaller traps.
• Use with all carrier gases.
• Ambient operating temperature, 100 psi (689 kPa) operating pressure.
• Built-in frit traps microparticles.
• Outlet gas purity: O₂ < 0.1 ppm when inlet does not exceed 15 ppm. H₂O < 0.5 ppm when inlet does not exceed 10 ppm.
• Maximum operating pressure: 150 psi (1,034 kPa).
• Maximum flow: 16.5 L/min.

• Removes moisture, hydrocarbons, and oxygen from carrier gas, extending column lifetime.
• Produces high-purity carrier gas for most applications.
• Includes one each: moisture, hydrocarbon, and indicating oxygen trap.
• Replacing traps is safe and easy.
• Maximum flow: 1 liter/minute.