WIKA Model GPF-10 Portable SF₆ filter unit

Portable service equipment series
The model GPF-10 filter unit is a module of the portable service equipment series. Modules of the instrument series:

• Portable vacuum pump, model GVP-10
• Portable SF6 filter unit, model GPF-10
• Portable SF₆ vacuum compressor, model GVC-10
• Portable SF₆ transfer unit, model GTU-10
• Portable SF₆ gas cylinder scale, model GWS-10

Efficient protection from contaminants
As research has shown, decomposition products such as HF, SO₂, SF₄ and SOF₄ can form in gas-insulated equipment with discharges or failures. The model GPF-10 SF₆ filter unit ensures reliable treatment of contaminated SF₆ gas. The particles found in decomposed SF₆ gas, such as aluminiumfluoride (AlF₃) or copper fluoride (CuF₂) are effectively retained by the integrated particle filter, so that the operator does not come into contact with these substances.

The filter unit is arranged upstream of the GVC-10 and GTU-10 and prevents these from being damaged through particles, humidity and decomposition products. Following filtration, in the best case, the SF₆ gas can be reused.

Replaceable filter insert
The filter unit can be replaced easily and within a few minutes. Thus the service equipment is operational again and fully effective within the shortest of time.

Optimised design
With the design of the filter unit, a premium was placed on a high gas flow rate and a robust construction. The anodised aluminium case makes the GPF-10 suitable for outdoor use and resistant against corrosion. The case reseals securely after a filter change and prevents any emission of environmentally harmful S_F6 gas.