SF₆ Gas Recovery Equipment

History

• Sulfur Hexafluoride (SF₆) discovered in 1900 by Henri Moissan

• In 1937 it was discovered that SF₆ possessed a much higher dielectric strength than air

• Major supplier Allied Signal (Silver Bottle) began processing SF₆ gas in 1948

Electrical Applications

• Circuit Breakers 345-500 kV

• Puffer Breakers – SF₆ used in place of air, oil or vacuum

• Switches 7.5-35 kV

• Gas Insulated Transmission Lines

• Mini Substations; space requirements are as little as 10-20% of air-insulated substations

Non-electrical Applications

• Magnesium Casting

• Aluminum Degassing

• Leak Detection

• Particle Accelerators (Universities)

• Window Pane Insulation

• Nike-Air Shoes

SF₆ Characteristics

Sulfur Hexafluoride has a unique combination of physical and electrical properties:

• Chemical Inertness

• Thermal Stability

• Non-toxicity

• Excellent Heat Transfer

• Non-flammability

• High dielectric/breakdown strength

• Non-corrosive

• Ability to regenerate

SF₆ a Greenhouse Gas

Sulfur Hexafluoride is a fully fluorinated compound (FFC), and since FFC's have lifetimes of up to 50,000 years in the atmosphere, these powerful greenhouse gases can add a lot to global warming if emissions are allowed to continue to grow.

For example, SF₆ has almost 25,000 times more global warming potential than CO₂!!

SF₆ Gas Recovery Products

GRU-4 - SF₆ Gas Recovery Unit

• Portable SF₆ Gas Recovery Unit hand-cart fixed.

• Simple operation.

• Appropriate for merging partially-empty SF₆ bottles.

• Purifies, dries and filters SF₆ to 0.1 micron during recovery and re-filling.

GRU-6 - SF₆ Gas Recovery Unit

• Fastest SF₆ Gas Recovery Unit in its class.

• Easy one-valve operation.

• 156 kg available on-board storage capacity.

• Ideal unit for mid-size circuit breakers.

GRU-7 - SF₆ Gas Recovery Unit

• Fastest SF₆ Gas Recovery Unit in its class.

• Easy one-valve operation.

• 105 kg available on-board storage capacity.

• Ideal unit for mid-size circuit breakers.

• Suitable for outdoor use.

E736A - SF₆ Gas Servicing Cart

• Oil-Less, Oil-Free and standard compressor options available.

• Full sized line with storage capacities up to 1,800 kg.

• Fully automatic or manual operation available.

• Specifically suited for larger sized circuit breakers.

GTU - Gas Transfer Unit

• Low cost solution for SF₆ gas recovery.

• Small, portable and easy to use.

• Exclusive colour change moisture indicator displays SF₆ "dryness".

• High pressure liquefaction of SF₆.

ERFU-2 - Evacuation & Refilling Unit

• Single valve operation.

• Large tyres for easy transport over gravel yards.

• Permanently fixed large volume, high vacuum pump.

• User modifiable regulated gas refilling.

Contact us for more information regarding these and other products.