The Snyder Industries 330 Gallon Plastic Chemical Feed Station Tank is a 1.9 specific-gravity vessel molded in white high density linear polyethylene (HDLPE), built for bulk chemical storage and metering-pump feed duty. It stands 69 inches tall on a 62 x 76 inch footprint and holds a nominal 330 gallons. For a chemical feed station, the 1.9 SG rating is the number that matters most: it confirms the tank wall is validated for liquids substantially heavier than water, which covers the dense acids and concentrated solutions a feed system typically handles.
Will it work for your application
Size your fill by weight, not just volume. Filled with plain water this tank carries about 2,752 lb; loaded to its maximum rated contents it is engineered to carry up to 5,229 lb. Use the higher number when you plan the slab, secondary containment, and structural support, because a dense chemical at this SG approaches that ceiling. On its 62 x 76 inch footprint the tank stands 69 inches tall, so verify overhead clearance and access if you set it under a feed-pump skid or inside a containment basin. Run your numbers through the Tank Sizing Calculator and the Tank Sizing Guide before you commit to a footprint, and see the technical drawing on this page for port locations and exact dimensions.
Chemical compatibility
This is an HDLPE tank rated to 1.9 specific gravity. HDLPE resists a broad range of chemistries, but it is not cross-linked (XLPE), so confirm the resin requirement for your specific service before ordering for aggressive oxidizers. The tank does not ship with pre-installed chemical fittings; specify your fitting and gasket materials at order so we configure the ports to your service, because the right elastomer and fitting alloy depend on the chemical, not on the tank. Per the OEM chemical-resistance chart, which is concentration- and temperature-specific, the following are within range for this resin and SG rating:
- Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
- Calcium Chloride (40%) - PVC fittings, EPDM gaskets
- DEF (32.5%) - 316SS fittings, EPDM gaskets
- Ethylene Glycol (100%) - PVC fittings, EPDM gaskets
- Ferric Chloride (50%) - PVC fittings, EPDM gaskets
- Ferric Sulfate (60%) - PVC fittings, EPDM gaskets
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
- Hydrochloric Acid (37%) - PVC fittings, Viton gaskets
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide (50%) - PVC fittings, Viton gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
- Peracetic Acid (30%) - 316SS fittings, Aflas gaskets
- Phosphoric Acid (85%) - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate (50%) - PVC fittings, EPDM gaskets
- Potassium Hydroxide (saturated) - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
- Sodium Hypochlorite (<16.5%) - PVC fittings, Viton gaskets
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
- Sulfuric Acid (98%) - CPVC fittings, Viton gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
Every chemistry listed above falls within this tank's 1.9 SG rating, so none of these services requires a heavier-rated vessel. Watch two columns. The gasket shifts to Viton on the oxidizers and strong acids - hydrochloric, hydrogen peroxide, phosphoric, sulfuric, sodium hypochlorite - and to Aflas on peracetic acid. The fitting alloy shifts to stainless on a few services: DEF, peracetic acid, propylene glycol, and zinc orthophosphate call for 316SS or PP/316SS rather than PVC. Always verify your exact concentration and operating temperature against the OEM chart and our Chemical Compatibility Database before plumbing the tank.
The mistake to avoid
The most common and most expensive error on a chemical feed station is matching the gasket to the tank instead of to the chemical. An EPDM gasket that is fine on aluminum sulfate or DEF will fail fast on sodium hypochlorite or sulfuric acid, where you need Viton. The same trap catches fittings: defaulting to PVC plumbing on a DEF or peracetic acid line will mis-spec the system, since those want 316SS. On sodium hypochlorite, note the <16.5% ceiling on the chart - standard 12.5% trade bleach is in range, but stronger product is not covered. The second mistake is under-rating SG on the dense end: on sulfuric acid at 98% or ferric chloride at 50%, plan around the 5,229 lb max-contents figure, not the water weight. For instrumentation, our guide on level gauge selection for chemical service walks through radar vs ultrasonic vs hydrostatic options, and the tank labeling and signage compliance guide covers NFPA 704 and GHS placarding for the chemistry you store. If you need full secondary containment, compare the Snyder Captor Plus 110% containment system against a basin.
This Snyder Industries chemical tank ships LTL freight from Marked Tree, AR, with cost quoted live to your ZIP - run your delivery point through the Freight Cost Estimator for a real number, or call 866-418-1777 and we will work it out with you. Tell us the chemical, concentration, and operating temperature when you order so we can confirm the resin, fittings, and gaskets are matched to your service before the tank leaves the plant.
