Product
Rubber Cone Packing for Tubular Gauge Glass
Conical rubber seals designed to secure glass tubes in tubular liquid level gauges, providing reliable sealing and cushioning between the tube and gauge fitting.
Technical Specifications
| Product Type | Accessories |
|---|---|
| Standard Material | EPDM rubber |
| Optional Materials | NBR, Silicone, FKM |
| Customization | Material, hardness and dimensions |
| Application | Tubular liquid level gauges |
- Provides a tight seal around the gauge glass tube.
- Standard and custom specifications are available.
- Different rubber compounds are available for various media.
Gaskets & Accessories
Product Description
Rubber Cone Packing is a conical sealing component used at the upper and lower connections of tubular liquid level gauges. It fits around the gauge glass tube and is compressed inside the gauge fitting or packing nut to form a secure seal.
The tapered profile helps distribute compression evenly around the glass tube. This reduces leakage while cushioning the glass against direct contact with the metal fitting. It also accommodates small dimensional variations between the tube and gauge connection.
These rubber cones are commonly used with clear, red-line and heavy-wall gauge glass tubes installed on water tanks, boilers, storage vessels and industrial liquid level indicators.
EPDM is the standard material for water, hot water and many general industrial applications because of its good resistance to heat, ageing, ozone and water. It is not recommended for mineral oils, fuels or hydrocarbon-based fluids. NBR is available for oil service, while FKM can be selected for higher-temperature, fuel and chemical applications.
Technical Specifications
| Property | Specification |
| Product Name | EPDM Rubber Cone |
| Standard Material | High-Temperature EPDM Rubber |
| Hardness | 75 Shore A |
| Density | 1.171 g/cm³ |
| Tensile Strength | 20 MPa |
| Compression Set | 16% at 125°C for 24 hours |
| Operating Temperature | −20°C to +150°C |
| Maximum Temperature | Up to +200°C for short-term service |
| Pressure Rating | Determined by the complete level-gauge assembly |
| Typical Assembly Pressure | Up to 1.0 MPa, subject to gauge design and operating temperature |
| Water Resistance | Excellent |
| Hot-Water Resistance | Excellent |
| Ozone and Ageing Resistance | Excellent |
| Optional Materials | NBR, silicone rubber and FKM |
Size and Dimensions
The following dimensions cover common rubber cone for 1/2″, 5/8″ and 3/4″ tubular gauge glass. Custom sizes and rubber compounds are available upon request.
| Product Code | Gauge Mount | Suitable Glass Tube OD | ØA (mm) | ØB (mm) | ØC (mm) | D (mm) | E (mm) |
|---|---|---|---|---|---|---|---|
| RC01 | 3/4″ | 3/4″ (18-19mm) | 33.50 | 21.00 | 28.50 | 5.50 | 23.00 |
| RC02 | 3/4″ | 5/8″(15-16mm) | 33.15 | 15.00 | 28.70 | 5.85 | 23.25 |
| RC03 | 3/4″ | 1/2″(12-12.5mm) | 33.15 | 11.95 | 28.70 | 5.85 | 23.25 |
| RC04 | 1/2″ | 1/2″(12-12.5mm) | 28.80 | 12.20 | 23.50 | 3.25 | 17.50 |
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KUNYO Industrial Components Co.,Ltd
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