Snyder Industries 120 Gallon XLPE Chemical Feed Station Tank

Straight onto the chemical room floor inside 56 by 43 inches

This tank is bought by the person who has measured the room. Fifty-six by 43 inches is the footprint, and it goes down on a level, continuous, finished surface that carries the whole base: a chemical room floor, a coated slab, a poured pad, or the deck of a bund built to hold the contents of the largest vessel inside it. Not on two rails with the middle unsupported. Not on a pallet as a permanent home. Not part on a kerb and part on the floor. What you gain by having no stand is height, and height is a real constraint in a plant room: at 51 inches the lid is at chest height on most people, so filling from a drum pump or a delivery hose happens at working level with no platform, no ladder and no reaching over the shoulder with an open container. The trade you accept is at the bottom. With the tank on the floor there is no gravity head under the base, so the metering pump either sits in a pit, sits on the floor beside the tank and pulls a suction lift, or the tank goes up on the stand its sibling comes with. Decide that before the room is laid out, because it is expensive to change afterwards. The other thing a floor-standing tank gives you is a shorter fall for a spill: everything that leaves this tank leaves it close to the ground, inside the bund, where it can be recovered. Work out whether 120 gallons is the right charge for your dosing rate and your delivery interval in the tank sizing calculator, and take the freeboard and reserve discipline from the tank sizing guide. A day tank that is refilled twice a week by hand from drums is a tank that is too small, and one that holds three months of chemical is a tank that will hand you a degraded product and a strong argument with your own lab. Where the room is being built around containment, the Snyder Captor containment comparison works through what an integrally contained tank buys against a built bund.

Ninety, 120 and 150 gallons on one 56 by 43 inch plan

Every tank in this table occupies the same 56 by 43 inches of floor, so the choice costs you nothing in floor area and everything in height. SII-5690103CF42 is 41 inches tall and 99 pounds for 90 gallons, the lowest fill point in the group and the one for a room with a bench, a pipe run or a duct overhead. This tank is 51 inches for 120. SII-5710103CF42 is 62 inches for 150, thirty more gallons on the same rectangle at 138 pounds, which is the one to take if the ceiling and the fill arrangement allow it, because the extra charge is free in floor terms. Then there is the stand question, and that is the real fork. SII-5700104CFWS42 is this same 120 gallon tank supplied on its stand, listed at 67 inches tall and 166 pounds where this one is 51 inches and 130 pounds; the height and the weight are the only figures the sheet gives for that difference, and this page will not invent a stand load, a stand height or a stand material that the sheet does not publish. Buy the stand version when the metering pump has to sit under the tank on a flooded suction, or when the drain has to reach a carboy. Buy this one when the ceiling is low, when the fill point has to stay at chest height, or when the pump is already below floor level. SII-5700104CFWS45 is the same stand height and weight in a linear polyethylene wall rather than a cross-linked one; take the cross-linked wall, as this tank has, when the chemistry or the handling is hard on a tank.

Neighboring size a better fit? Every row links to its own page; freight to your ZIP is quoted on each, or call 866-418-1777.

The outlet the sheet leaves blank, and the 14 inch lid above it

• The outlet: this sheet publishes no outlet fitting, so we name no pipe size, no valve and no bulkhead assembly for it. Tell us the chemical and the pump you are feeding when you order and we will confirm the discharge arrangement with the maker in writing before anything ships. That is the honest answer and it is better than a guess in a chemical room.
• The suction, once the outlet is settled: put an isolation valve at the tank, then a flexible connector, then a cleanable strainer, then the pump. Everything downstream rides on its own support and never on the tank wall.
• Pump protection: a metering pump on a chemical duty should be stopped by a low level float or probe with liquid still above the fitting, not by an operator noticing. A run-dry event on a dosing pump is a maintenance call at best.
• The lid: 14 inches, at 51 inches off the floor. That is a real working height for a drum pump wand, a delivery coupling or a hand held sampler, and it is a narrow enough opening that the fill line wants a proper coupling rather than a hose laid over the rim.
• Venting: keep the vent path clear whenever the pump can draw. A closed lid over a drawing pump pulls on the wall, and no wall specification changes that.
• Limit: the service limit on this sheet is 120 F / 48 C, and that is the only limit it publishes.

Plan what goes on top before anything is drilled. Fill, vent, level device and any return line will fight each other for the life of the station if they are placed one at a time as they are needed. Put the level on a gauge read from where the operator stands, and choose it for the chemistry rather than for the price: the level gauge selection guide compares the technologies on chemical service. Then mark the tank properly. The tank label and signage guide reconciles the marking standards that a fire inspector and a workplace inspector will each ask about, and it is a cheap job to do once and an expensive one to argue about twice.

Day tank duty and the sample that tells the truth

A 120 gallon station is the charge for a small, constant dosing duty: hypochlorite, caustic, acid or polymer at a water or wastewater plant; a day tank beside a process line in food, paper or metal finishing; cooling tower treatment; bulk detergent at a wash or a laundry; a dosing point in a mine or a generating station. All of those depend on knowing what is actually in the tank on the day it is drawn, and a sample taken badly produces a wrong answer that looks entirely right, which is exactly the failure the chemical sampling protocol article is written about. Draw from the same point, at the same depth, on the same cadence, into the same container, and log it. A day tank with no sampling discipline is a tank that will eventually hand the process an off-spec charge and no way of proving when it went wrong.

Which liquids, at what concentration, with which fitting

Each entry pairs a rated liquid with its concentration limit and the fitting and gasket to order alongside the tank. The full rating sits on the linked page and in the chemical compatibility database before ordering.

• 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
• Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
• Magnesium Chloride (30%) - PVC fittings, EPDM 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 Carbonate (30%) - PVC fittings, EPDM gaskets
• Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
• Urea Solution (50%) - PP/PVC fittings, EPDM gaskets

Out of Marked Tree at 130 pounds on the -02 code

This station is molded at Marked Tree, Arkansas. The sheet gives the freight class as LTL, a mode rather than a numeric class, under NMFC 156600-02, and it shipments at 56 by 43 by 51 inches at 130 pounds. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. Because it has no stand, this is the lowest shipment in its group, which is the one thing worth checking against the door and the passage on the way to the chemical room before the truck is booked. A hundred and thirty pounds comes off with a forklift under the base or with two people who have lifted a tank before, never by the lid. Set it on its finished, level floor or bund deck in the final position, water-fill it once and hold it while you read the base and the lid seal, and drain it dry before the chemical is delivered. Name the chemical on the tank before the first delivery arrives, because the truck driver reads the tank, not the purchase order. Once it is full and holding, leave it alone for a day before the plumbing goes on; a settled tank is a quiet one.