- Dehydrating breathers for transformers

Dehydrating breathers

HAMP’s inhouse-manufactured dehydrating breathers are of very high quality and delivered to customers in both Europe and the US, as well as Africa and Asia.

How it works

Keeps the oil free from moisture

The dehydrating breathers are manufactured in various sizes, primarily for use in oil-insulated transformers where they prevent moisture in air from coming in contact with the transformer oil and thus lowering insulation properties.

The air is extracted inside the transformer upon decreasing loads or temperatures, passing through a plexiglass container filled with silica gel dehumidifying agent.

The dehydrating breathers are equipped with an oil trap that prevents the exterior air from remaining in continual contact with the silica gel.

Operating conditions and humidity

1-year interval

Our dehydrating breathers are engineered for an interval of about 1 year between replacement or regeneration of the dehumidifying agent. This however is dependent on the operating conditions and humidity.

The silica gel’s moisture absorption capacity is approximately 10 percent by weight and it is orange in the dry state. As moisture is absorbed, the colour intensity decreases from orange to colourless. Saturated silica gel can be dried and reused. Drying should be performed at a temperature of no more than 130 degrees Celsius.

All dehydrating breathers are available for immediate delivery from our warehouse in Spånga, Stockholm.

Products

Standard

Off shore - C5M

Large oil cup

Silica gel

Adapter flanges

Dehydrating breathers

Standard

ART.NO
TYPE
Max oil weight (kg)
Comp. Weight (kg)
Silica gel weight (kg)
Total height (mm)
3040 1010
4101-A
1000
0,6
0,25
140
3040 1020
4101-B
2000
0,7
0,50
205
3040 1030
4101-C
4000
0,9
1,00
325
3040 1040
4170
800
0,35
0,18
138
3040 1050
4130-2
8000
2,7
2,00
319
3040 1060
4130-4
16000
3,5
4,00
515
3040 1070
4140
32000
5,7
8,00
916

Offshore

ART.NO
TYPE
Max oil weight (kg)
Comp. Weight (kg)
Silica gel weight (kg)
Total height (mm)
3040 1050C5M
4130-2 C5M
8000
2,7
2,00
319
3040 1060C5M
4130-4 C5M
16000
3,5
4,00
515
3040 1070C5M
4140 C5M
32000
5,7
8,00
916

Large oil cup

ART.NO
TYPE
Max oil weight (kg)
Comp. Weight (kg)
Silica gel weight (kg)
Total height (kg)
3040 1050-SO
4130-2 SO
8000
2,9
2,00
428
3040 1060-SO
4130-4 SO
16000
3,7
4,00
624
3040 1070-SO
4140 SO
32000
5,9
8,00
1025

See our other products

MR and Messko products

Hamp represents Reinhausen and Messko, which are world-leading manufacturers of transformer accessories. We are very proud to be able to deliver these quality products to our customers.

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