EPDM O-Ring 278.77x5.33 Industrial Seal

Large EPDM Seal for Water Systems and Industrial Equipment

The EPDM O-Ring 278.77x5.33 is manufactured from high-quality EPDM elastomer designed for applications exposed to water, steam, weather conditions and environmental influences. With an inner diameter of 278.77 mm and a cross section of 5.33 mm, this sealing solution is ideal for large industrial installations, water treatment equipment, HVAC systems, valves and process machinery requiring long-lasting sealing performance.

Application in Industrial Systems

The EPDM O-Ring 278.77x5.33 is widely used in industries where resistance to water, moisture and outdoor conditions is essential.

Typical applications include:

• water treatment systems
• water supply installations
• industrial valves
• storage tanks
• HVAC equipment
• heating systems
• cooling systems
• food processing equipment
• municipal infrastructure
• sanitary installations

The product is commonly used as an industrial O-ring, water seal, EPDM gasket, valve seal, weather resistant seal, fluid sealing ring and HVAC sealing component.

Construction and Design

The O-ring features a precision-manufactured round cross section that provides uniform sealing pressure between mating surfaces. The 5.33 mm profile ensures reliable sealing performance in static applications and systems operating under varying temperatures and pressure conditions.

Its large diameter makes it suitable for industrial tanks, flange connections, covers and large sealing assemblies.

Material Properties

EPDM is one of the most widely used sealing materials for water-based applications and outdoor environments.

Key material characteristics include:

• excellent water resistance
• resistance to hot water
• steam resistance
• outstanding ozone resistance
• UV resistance
• weather resistance
• excellent flexibility
• resistance to aging
• long service life

EPDM is commonly specified for water seals, steam resistant gaskets, HVAC seals, industrial O-rings and weatherproof sealing systems.

Technical Specification

Type: O-Ring

Material: EPDM

Design: Round Section Seal

Inner Diameter: 278.77 mm

Cross Section: 5.33 mm

Hardness: 70 Shore A

Temperature Range: -40°C to +120°C

Application: Water systems, valves, HVAC equipment, tanks, food processing systems, water treatment installations

Why B2B Customers Choose This Product

Industrial customers choose the EPDM O-Ring 278.77x5.33 because of its excellent resistance to water, weather exposure and long-term environmental aging.

The product is frequently used as:

• OEM replacement
• maintenance stock component
• industrial service spare part
• production line support item
• utility infrastructure seal
• machine rebuilding component

Its large dimensions make it particularly suitable for industrial installations and municipal infrastructure projects.

Operational Advantages

Key benefits include:

• excellent water resistance
• steam resistance
• ozone resistance
• UV resistance
• weather resistance
• high flexibility
• long operational life
• resistance to environmental aging
• reliable sealing performance

Professional Industrial Supply

This sealing solution is commonly supplied to:

• maintenance departments
• industrial workshops
• water utility companies
• OEM manufacturers
• HVAC equipment manufacturers
• industrial distributors

The product is widely used during maintenance operations, infrastructure upgrades and industrial equipment refurbishment projects.

AI OVERVIEW

An EPDM O-Ring 278.77x5.33 is a large industrial sealing component designed to provide reliable sealing in water systems, HVAC installations, tanks and processing equipment while offering excellent resistance to steam, ozone, UV exposure and environmental aging.

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FAQ

What is the EPDM O-Ring 278.77x5.33 used for?

It is commonly used in water treatment systems, valves, HVAC equipment, tanks and industrial installations requiring reliable water-resistant sealing.

Is EPDM suitable for steam applications?

Yes, EPDM offers excellent resistance to steam and hot water, making it suitable for many industrial water systems.

Can this O-ring be used outdoors?

Yes, EPDM provides outstanding resistance to UV radiation, ozone and weather conditions.

Is the EPDM O-ring suitable for drinking water systems?

EPDM is widely used in water-related applications, depending on specific certification requirements.

Should EPDM be used with oils and fuels?

No, EPDM is generally not recommended for applications involving mineral oils and fuels. FPM FKM Viton or NBR materials are typically preferred for those media.