Graphite Sealing Ring

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Cut Form: endless, semi-oblique, single oblique, straight cut, etc
Section Shape: rectangular, V-shaped, or wedge section.
Dimensions: Minimum cross-section: 3mm; Maximum Diameter: 1000mm. It can be customized according to customer size and environmental requirements.
Delivery Time: 1-2 weeks, depending on order quantity.

The graphite seal ring is a mechanical sealing component. Its high strength, low friction, high temperature, pressure resistance, and self-lubrication make it ideal for dynamic and static sealing ring materials. It is made of high-purity or impregnated resin/metallic graphite for excellent performance.

The graphite sealing ring is divided into static sealing ring and dynamic sealing ring, the static sealing ring is installed on the fixed part, and the dynamic sealing ring is installed on the rotating shaft. These seals are commonly used in applications such as pumps, compressors, and turbines to form sealed interfaces that prevent liquid or gas leaks. The size of graphite rings may vary depending on the specific application, but their standard size is usually a few millimeters to a few centimeters in diameter.

Graphite rings are widely used in various fields, AGRM as a professional supplier of graphite products, will recommend and provide the most suitable grades for different fields. In addition, we have different surface treatments to meet special requirements. You are welcome to share your exact needs with our team.

AGRM Hot-Sale Graphite Sealing Ring

As a leading graphite electrode supplier, AGRM has nearly 20 years of experience in customizing graphite products, ensuring product dimensions within drawing tolerances. Please contact our engineers for more personalized solutions if you have any requirements.

Graphite Static Seal Ring

What is the static seal?

Static seals are located between two immovable parts. Its task is to prevent material transfer. When using static seals, the surfaces to be sealed are always in contact. Therefore, the leakage rate is relatively low.

Static seals require the minimum necessary clamping force and must not exceed the maximum allowable pressure, and these aspects vary depending on the type of seal, material, and manufacturer. In addition, since there is no friction in dynamic seals, the pressure between the sealing material and the part to be sealed can be higher.

Graphite Dynamic Seal Ring

What is the dynamic seal?

Dynamic seals are named for the movement in which they operate. Its purpose is to seal two parts in relative motion, thereby preventing or limiting the exchange of substances to acceptable levels.

Sealing gaps are usually unavoidable but can be exploited. For example, a lubricant can be introduced into it during operation. In a dynamic seal, the components to be sealed can be in contact with each other, just as in a static seal.

Impregnated Carbon-Graphite Ring

Carbon and graphite materials are inherently porous after material processing. These materials are usually impregnated with resins or metals to increase strength, improve thermal conductivity, reduce resistivity, reduce porosity, or imbue impermeability. These benefits can lead to secondary benefits, for example, impregnation with antimony can reduce porosity and thus reduce blister formation, especially in light hydrocarbon and hot oil applications.

Graphite Sealing Ring Specifications

Grade	Density (g/cc)	Porosity	Shore Hardness	Compressive Strength (Mpa)	Flexural Strength (Mpa)	CTE (×10-6°C-1)	Max Working Temperature	Application
M105K(Resin Impregnation Vanes)	1.8	2%	60	110	65	–	200 °C	Carbon vanes
M106K(Resin Impregnation)	1.8	2%	65	180	60	4	200 °C	Seal rings, bush
M106D(Antimony Impregnation)	2.3	3%	80	230	80	4	550 °C	Seal rings, bush
M254A(Copper Impregnation)	2.4	2.50%	70	170	65	–	500 °C	Seal rings, bush
Notes:
1 MPa = 10.2 kgf/cm2; 1 W/m.k = 0.86 kcal/cm.h.°C
These properties are typical values and not guaranteed.

Different Models of Graphite Ring Products

Characteristics of AGRM Graphite Sealing Ring

Graphite Sealing Ring Applications

Graphite rings are widely used in valves, pumps, flange connections, and other equipment in the petroleum and chemical industry. Its excellent corrosion resistance can meet the sealing requirements of strong acid, strong alkali, and other corrosive media.

Graphite rings can be used to seal parts of heat exchangers to ensure sealing performance under high temperatures and corrosion conditions. Its high-temperature resistance and excellent sealing properties make it suitable for efficient heat exchanger equipment.

Graphite rings can withstand high-temperature changes and thermal cycling, often used in high-temperature kiln systems, such as glass melting kilns, metallurgical furnaces, etc. Its high-temperature resistance and low coefficient of thermal expansion make it suitable for sealing requirements at high temperatures.

Graphite ring has good air tightness and mechanical strength, suitable for sealing parts in vacuum systems, such as vacuum pumps, vacuum kilns, etc. In high vacuum, graphite rings provide a reliable sealing effect.

Graphite rings are widely used in electrochemical equipment, such as batteries, electrolyzers, etc. Its high electrical conductivity and corrosion resistance enable it to withstand current and corrosion-resistant media in the electrolyte.