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✓ Complete Drain-Down. Confirmed.

Cone Bottom Fiberglass Tank

Fiberglass cone bottom tanks are specified for process and storage applications where full drain-down, residue control, and product evacuation are operational requirements. Available in 30° and 45° cone configurations with skirt or leg ring support, open top or closed top. Resin selection is application- and chemical-dependent; confirm compatibility during quoting.

ASTM D4097 or ASTM D3299

Download Spec Sheet

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Spec List

  • Capacity: 250 - 4,000 Gal.
  • Centrifugal casting or chop-hoop filament winding depending on size
  • Cone angles: 30° and 45°; angle affects drainage rate and height
  • Resin options: isophthalic polyester and vinylester; application-dependent
  • Standard rating: liquids up to 1.3 specific gravity; higher available
  • Flanged connections 1"–24"; bulkhead fittings and couplings available
  • Support styles: skirt (12" clearance) or leg ring with pipe/I-beam legs

Features

  • Cone geometry eliminates retained product and reduces cleaning downtime
  • Resin options matched to your chemical so compatibility is confirmed upfront
  • Configurable floor clearance keeps valve and plumbing access unobstructed
  • Open or closed top options support dust-free and open process needs
  • Manufactured to ASTM D4097 or D3299 depending on construction method
  • Supports batching accuracy with predictable, repeatable drainage

Applications

  • Process applications requiring full drain-down and product evacuation
  • Batching and mixing where repeatable volume accuracy is required
  • Process feed and transfer with sequenced discharge requirements
  • Applications where residue accumulation must be controlled
  • Industrial chemical storage subject to compatibility confirmation
  • Water and wastewater where complete drain-down is specified
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Fiberglass Cone Bottom Tank Details

Fiberglass cone bottom tanks are available from 250 to 4,000 gallons, combining a cylindrical sidewall with a sloped cone base that directs liquid toward a central outlet for complete drainage. Cone angles of 30° and 45° are available, with flanged outlet connections from 1" to 24". Two support styles are offered: skirt with 12" standard floor clearance, and leg ring with pipe or I-beam legs sized to your required height. Both open top and closed domed top configurations are available.

Tanks are manufactured to ASTM D4097 (centrifugal casting) or ASTM D3299 (chop-hoop filament winding) depending on size and configuration. These standards govern material properties, design criteria, and construction requirements for chemical-resistant fiberglass tanks. Two resin systems are available isophthalic polyester for general chemical and water service, and vinylester for more aggressive applications. Resin selection must be confirmed against your stored liquid, concentration, and temperature before specifying. Contact One Clarion with your project details for sizing, configuration, and compliance guidance.

Specialist Support for Your Storage Project

Talk with a specialist for practical guidance and equipment recommendations.

1-863-261-8388 Contact a Specialist
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Frequently Asked Questions

Common questions about fiberglass cone bottom tank selection, support requirements, and the quoting process.

When does fiberglass make sense for a cone bottom tank?

Fiberglass is typically specified for chemical compatibility reasons or when the application calls for it. Two resin options are available: isophthalic polyester for general service and vinylester for more aggressive chemicals. Share your stored liquid details with One Clarion and we can confirm the right resin and configuration.

What do you need to get an accurate quote?

The most useful details are: stored liquid and concentration, required capacity, cone angle preference (30° or 45°), outlet size and type, support style, required floor clearance, and project timeline. The more context you provide upfront, the faster we can return an accurate quote.

How do I specify the fitting and outlet connections?

Flanged connections are available in sizes 1" through 24"; bulkhead fittings and fiberglass couplings are also available. Provide the outlet size, connection type, and any orientation constraints when requesting a quote.

What support options are available for cone bottom tanks?

Skirt-supported tanks provide 12" standard floor clearance with a sidewall scallop for plumbing access. Leg ring tanks accept pipe or I-beam legs ordered separately, with leg length specified based on your required clearance height.