1600 Gallon 30 Degree Cone Bottom Tank: Complete Buyer's Guide
A 1,600-gallon 30-degree cone-bottom tank from Norwesco, the bare-tank option for buyers with their own stand, in 1.5-specific-gravity polyethylene for full-drain batch work.
Specifications at a Glance
Every figure below is pulled straight from the live product record for this exact tank — the same data on the product page, so what you read here and what you buy never disagree.
Standards & Materials
- ASTM D1998 — Standard Specification for Polyethylene Upright Storage Tanks. Governs wall-thickness and hydrostatic design for vertical rotomolded poly tanks of this class.
- FDA 21 CFR 177.1520 — Olefin polymers. The food-contact regulation the FDA-grade resin in this tank is compounded to meet.
- Specific gravity rating 1.5 — the tank is engineered for liquids up to 1.5× the density of water (water is about 8.34 lb/gal). Confirm your fluid’s SG before storage.
Product Overview
The 1,600-gallon 30-degree cone-bottom tank is the bare-tank option for buyers who supply their own stand — the same complete-draining vessel as the bundled version, at 84 inches tall on an 88-inch diameter for the tank alone. The 30-degree cone clears most slurries and settled solids to the center outlet, making it the workhorse angle for mixing and batch processing. The bare shell weighs 239 pounds.
A single seamless rotomolding of virgin linear polyethylene, rated to 1.5 specific gravity, handles dense liquids to 12.5 pounds per gallon. Translucent white walls let you read the level through the side and reflect sun to keep contents cooler, and the resin is FDA-compliant for food-grade liquids.
This tank ships without a stand, so you must provide one rated for the full load — about 20,255 pounds at the rated gravity — that carries the tank through its flange and legs and never the cone apex. The 2-inch cone-tip outlet is factory-fitted and pressure-tested for clean center discharge, paired with a 16-inch access lid. Norwesco's 3-year warranty applies.
Technical Drawing
Official Norwesco technical drawing — 1600 Gallon 30 Degree Cone Bottom Tank
Key Features and Specifications
- 1,600-gallon capacity — sized for full-drain mixing and batch processing
- Constructed from virgin linear polyethylene (HDPE) with 1.5 specific gravity rating — handles liquids up to 12.5 lbs/gal
- 84" tall x 88" diameter — compact vertical footprint
- 239 lbs empty, approximately 20,255 lbs when full at rated specific gravity
- 2" NPT outlet fitting — factory installed and leak-tested
- 16" lid opening for fill, venting, and interior access
- FDA approved for potable water and food-grade liquid contact
- 3 Year Warranty from Norwesco against manufacturing defects
- Translucent white walls allow visual level monitoring without opening the tank and reflect sunlight to keep contents cooler
- Rated for continuous service up to 120 F / 48 C
- Seamless one-piece rotational molding — no seams, no welds, no leak points
- Manufactured by Norwesco — a leading name in rotomolded polyethylene tanks
- Must be installed on the manufacturer-supplied or compatible stand rated for the full loaded weight. Never rest a cone bottom tank directly on its apex
- Ships via LTL freight — allow 2-3 weeks for delivery. Lift gate and residential delivery available at additional cost
Installation and Setup Guide
Without an included stand, sourcing the correct one is step one — it carries all ten tons, while the cone apex carries none.
Site Preparation and the Stand
Provide a manufacturer-compatible stand rated for the full 20,255-pound load, sized for the 88-inch diameter and 30-degree cone. Set it on a four-inch compacted gravel pad or a concrete slab, finished flat so all legs share the load, and anchor it per its specifications. Never rest the cone on the ground or on an undersized support. Where the chemical calls for it, add secondary containment.
Placement and Connections
Pick stand height so a full-port valve and drain line fit beneath the cone outlet. Take the 2-inch center outlet down via a short, chemical-rated flexible connection so complete drainage carries to the discharge, with valve and seals matched to the chemistry.
Venting
Let the tank breathe through a lid vent on fill and drain, and add a chemistry-rated relief vent for off-gassing contents.
Maintenance and Long-Term Care
Since the stand is yours, inspect it as closely as the tank — it is what keeps the cone off the ground.
Quarterly Inspection Checklist
- Stand: check legs, joints, and fasteners for corrosion, cracks, or loosening, and confirm even loading and no settling.
- Cone and shell: look the 30-degree cone and its transition to the sidewall over for stress whitening or bulging.
- Outlet and seals: test the center valve for free operation and inspect its gaskets for chemical attack; hand-tighten poly threads only.
- Vent: verify the lid vent is clear.
Cleaning and Chemical Changeover
At changeover the complete-draining cone rinses clean, leaving no residual heel. Decontaminate per the manufacturer's protocol, collect and dispose of rinsate per label and regulation, and re-verify the incoming chemical against the resin and seals before refilling.
UV and Weather Protection
Light reaches through the white wall, so shade algae-prone or light-sensitive contents in strong sun and give the wall an annual look.
Alternatives and Comparisons
This is the stand-not-included 1,600 with a 30-degree cone — the value pick if you already have support, and a shorter bare tank than the bundled version. Prefer it complete? The same tank ships with a matching poly stand. A shallower 15-degree cone sits lower with a flatter floor; a 45-degree cone clears the heaviest sludges at greater height.
Other 1600-Gallon Options
Frequently Asked Questions
How long will the 1600 Gallon 30 Degree Cone Bottom Tank last?
Run it within the 1.5 SG and 120 F ratings on compatible chemistry and a well-maintained stand, and 15 to 20 years is realistic. You supply the stand, so its upkeep is on you — maintain it and the seamless tank reaches the long end of that range.
What chemicals can I store in this tank?
Its 1.5 specific gravity rating suits ag chemicals, fertilizers, slurries, and industrial solutions within that band, with FDA-compliant food-grade resin. Not for fuels, solvents, or flammables. Cross-check the chemical and every seal against a compatibility reference before filling.
What kind of foundation does a 1600-gallon tank need?
This tank ships without a stand, so you provide one: a manufacturer-compatible stand rated for the full 20,255-pound load that carries the tank through its flange and legs, never the cone apex. Set it on a level four-inch gravel pad or concrete slab so all legs share the load, and anchor per spec. The cone tip must never sit directly on the ground.
Does this tank come with a warranty?
Norwesco warrants the tank for three years against pinholes, molding voids, and defective factory fittings. The warranty excludes overloading, a damaged or undersized stand, chemical attack, and impact. Keep records for any claim.
Can I install this tank underground?
No. Because it sits on a stand above ground, a cone-bottom tank cannot go underground. For below-grade applications, use underground tankage built for the job.
Buying Considerations
Three checks: a compatible stand rated for ten tons (not included), set on a flat pad; a chemical at or under 1.5 SG compatible with the polyethylene and seals; and a freight plan, since this tank ships LTL by flatbed and needs a forklift to unload. Tell us if you need a stand and we will help spec the full package.
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