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RF865-80 Series Heavy-Duty SMC Round Manhole Covers for Industrial and Fuel Station Applications

RF865-80 Series Heavy-Duty SMC Round Manhole Covers for Industrial and Fuel Station Applications

The RF865-80 series heavy-duty round manhole covers offer a reliable solution for environments that require robust mechanical strength, long-term durability, and environmental resistance. With a cover diameter of 865 mm and frame dimensions carefully engineered for optimal fit, this series is ideal for fuel stations, municipal infrastructure, and industrial facilities where load-bearing performance and operational safety are critical.

Both the cover and frame are manufactured using high-performance SMC (Sheet Moulding Compound) composite material, providing exceptional resistance to chemical corrosion, moisture, and UV exposure. This makes the RF865-80 series suitable for both underground and surface applications in harsh environments. The NBR (Nitrile Butadiene Rubber) sealing ring ensures a watertight and chemical-resistant barrier, protecting the underlying infrastructure from water, oil, and acidic or alkaline contamination.

The series meets EN124:1994 standards and is available in B125 (12.5-ton), C250 (25-ton), and D400 (40-ton) load classes, accommodating light to heavy vehicle traffic. The frame’s inner diameter of 800 mm and outer diameter of 985 mm, combined with a total height of 80 mm, ensures a secure fit while maintaining a low-profile design. An integrated locking mechanism with removable seal enhances safety and facilitates inspection or maintenance without compromising sealing performance.

The exterior surface features raised anti-slip patterns, providing reliable traction in wet or oily conditions, which is particularly important for fuel station driveways and industrial sites. The RF865-80 series is lightweight compared to traditional cast iron alternatives, with cover weights ranging from 19 kg (B125) to 49 kg (D400) and a consistent frame weight of 16 kg, making handling, installation, and maintenance far more convenient.

Internationally, these covers are also known as SMC composite round manhole covers, GRP inspection covers, composite access hatches, or fuel station round covers, depending on regional or industry-specific terminology. Regardless of naming, the series consistently delivers durability, chemical resistance, anti-static performance, and high load-bearing capacity.

In summary, the RF865-80 heavy-duty round SMC manhole covers combine lightweight handling, high mechanical strength, and environmental protection. They provide an excellent replacement for traditional cast iron covers, offering safe, maintenance-friendly, and long-lasting performance for fuel stations, municipal roads, and industrial environments.

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The RF865-80 series of heavy-duty round SMC manhole covers is specifically designed for applications that demand high mechanical strength and environmental resistance, such as fuel stations, municipal infrastructure, and industrial facilities. The product complies with EN 124:1994 standards.

Technical Specifications
Load Class: B125 (12.5 Ton)/C250 (25 Ton) / D400 (40 Ton)
Cover Diameter: 865 mm
Frame Inner Diameter: 800 mm
Frame Outer Diameter: 985 mm
Total Height: 80 mm
Material: SMC Composite for both cover and frame
Sealing Material: Nitrile Rubber (NBR), acid & alkali resistant
Color: Black / Customizable
Operating Temperature:  -40℃ to +100℃
Structure: Cover & Frame is with Locking Mechanism, Removable Seal

Ordering Information:

Product # Load Class Cover Net Weight Frame Net Weight
RF865-80-B125 B125 19 Kgs 16 Kgs
RF865-80-C250 C250 41 Kgs 16 Kgs
RF865-80-D400 D400 49 Kgs 16 Kgs

Note: Custom colors and logo engraving available upon request.
Weight values are approximate and may vary slightly due to manufacturing tolerances.

Real Product and In-Field Application Image:

 

 

 

About Haibo
Zhejiang Haibo Petroleum Equipment Co., Ltd.

Zhejiang Haibo Petroleum Equipment Co., Ltd., established in 2017, is a certified enterprise located in Yongjia County, Wenzhou City, Zhejiang Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
Our products are widely used in Fluid Control Systems, Energy Systems, Measurement Systems, Piping Systems, and Hydraulic Systems, serving petroleum companies, military units, oil depots, tank truck manufacturers, and petrol stations worldwide. Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
At Haibo, we are backed by a team of senior industry experts with more than 20 years of professional experience in the petroleum equipment and fluid control sectors. Their deep technical knowledge and industry insight ensure that every product and solution we deliver meets the highest standards of quality, reliability, and performance.

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