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1. Gasket on Lid DesignThe 5/8” Square Buna Gasket is a crucial component of our manhole cover. Buna rubber is known for its excellent resistance to oil, chemicals, and weathering. It provides a tight seal between the lid and the neck, preventing any leakage of the contents inside the tank.
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2. Lubenut or Wingnut ClosureWe offer both lubenut and wingnut closure options, with 5 and 6 wingnut choices available. The lubenut provides a more secure and tight closure, while the wingnut offers the advantage of easy operation. Customers can choose the closure type based on their specific needs and preferences.
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3. Available Neck MaterialsOur manhole covers are available with necks made of aluminum, carbon steel, and stainless steel. Each material has its own advantages. Aluminum is lightweight, making it suitable for applications where weight is a concern. Carbon steel offers high strength and durability, while stainless steel provides excellent corrosion resistance, making it ideal for harsh environments.
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4. Stainless Steel Fasteners on Stainless Steel ManwaysThe use of stainless steel fasteners on our stainless steel manhole covers ensures long-term reliability and resistance to corrosion. These fasteners hold the various components of the manhole cover together securely.
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5. Weight and DimensionsOur 20″ x 6″ manhole cover stainless steel weighs 71 lbs and has dimensions of 25 × 25 × 11 in. These dimensions are carefully designed to fit the standard openings on oil tank trucks and powder tank trucks while providing sufficient strength and stability.
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6. Gasket Location
The gasket is located on the lid, which allows for a more effective seal when the lid is closed. This design ensures that the contents inside the tank are protected from external elements.
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7. Material CompositionThe lid and the neck of our manhole cover are made of stainless steel, providing a high level of durability and resistance to corrosion. The stainless steel material also gives the manhole cover a sleek and professional appearance.
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8. Tie DownsWith 6 '' tie downs, our manhole cover can be securely fastened to the tank, ensuring that it remains in place during transportation.