Silica Gel Breather
Silica Gel Breathers are moisture-control devices designed to protect transformers and other equipment by preventing moisture and dust from entering through the breathing air. Larger silica gel sizes such as 1–2, 3–4, and 5–8 mesh are commonly used in breathers, where indicating silica gel changes color as it absorbs moisture, allowing the saturation level to be easily monitored.
Available in Clear View and Aluminum Body designs, the breathers can be supplied with different body dimensions and thread or flange connections according to requirements. The silica gel can be regenerated by heating at approximately 150°C for about 2 hours, or until the indicating color returns to blue.
Description
Key Features & Benefits
Effective Moisture Protection – Helps prevent moisture from entering transformers and other equipment.
Dust Protection – Helps keep dust particles out of the breathing system.
Color-Indicating Silica Gel – Indicates moisture absorption through visible color change.
Two Breather Body Types – Available in Clear View and Aluminum Body designs.
Multiple Connection Options – Available with thread and flange-type connections.
Multiple Silica Gel Sizes – Suitable sizes include 1–2, 3–4, 5–8, 6–8, and 4–6 mesh depending on application.
Regenerable Silica Gel – Can be regenerated through controlled heating.
Wide Industrial Application – Suitable for transformers, tanks, hydraulic systems, turbines, gearboxes, switchgear, and bearing protection.
Alternative Indicator Option – Orange silica gel can be used as a cobalt-free indicating alternative.
Product Specifications
| Specification | Details |
|---|---|
| Product Type | Silica Gel Breather |
| Breather Body Types | Clear View Breather, Aluminum Body Breather |
| Silica Gel Type | Indicating Blue Crystals / Blue Beads |
| Crystal Sizes | 4–6 mm, 6–8 mm |
| Bead Sizes | 1–2 mm, 2–4 mm |
| Common Mesh Sizes | 1–2, 3–4, 5–8 Mesh |
| Crystal Color Indication | Dark Blue → Light Pink |
| Bead Color Indication | Blue → White |
| Alternative Indicator | Orange → Light Green |
| Clear View Body | Polycarbonate / Transparent Acrylic Tube with Aluminum & ABS Die-Cast Top and Bottom Caps |
| Aluminum Body | Aluminum Body with Window and Aluminum Die-Cast Top and Bottom Caps |
| Connection Type | Thread & Flange Type |
| Regeneration Temperature | Approximately 150°C |
| Regeneration Time | Approximately 2 Hours or Until Color Returns to Blue |
| Moisture Absorption | Approximately 35–40% of Its Weight at Saturation |
| Applications | Oil-Cooled Transformers, Lubricants, Diesel Tanks, Fuel Storage Tanks, Petrol Tanks, Agriculture Equipment, Hydraulic Systems, Hydraulic Power Packs, Turbines, Gearboxes, Feed Pumps, Switchgear, Bearing Protection |




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