Snyder Industries 120 Gallon HDLPE Chemical Feed Station Tank with Stand in White

The stand is the product, the wall is the choice

Four feed stations share this sheet and the choice between them is made on two axes: height and wall. On height, SII-5700103CF42 is the same 120 gallons on the same 56 by 43 inch plan at 51 inches tall and 130 pounds, which is the tank without the stand. This one is 67 inches tall and 166 pounds. Sixteen inches of height and 36 pounds is what the frame costs, and what it buys is the space underneath: a metering pump sitting below the tank's low point on a flooded suction instead of pulling a lift, a drain that reaches a carboy or a sump without a transfer pump, and a clear line of sight under the vessel so a weep is found by eye rather than by boot. On a dosing duty that runs every day, that is usually the whole argument. Buy the 51 inch version instead when the ceiling is low, when the fill point is fixed at a height the stand would beat, or when the pump already sits below floor level. On wall, this part is the high density linear polyethylene one; its twin SII-5700104CFWS42 is listed at the identical 56 by 43 by 67 inches and the identical 166 pounds under a cross-linked name. The sheet gives them as the same station at the same weight and explains nothing further, so this page prints that and invents no difference; order the part number your plant's drawing or spares list already carries. The 83 by 68 inch question people ask about bigger stations does not arise here: this one is 56 by 43 inches in plan, which is one small rectangle to bund, one pad to level and an aisle-width footprint in a chemical room. Set it on a flat, continuous, level surface that carries the whole frame, not on two rails with the middle unsupported, and anchor it before the first fill. Above that frame sits 1,001 pounds of water, and 1,902 pounds at the rating. Check 120 gallons against your dosing rate and delivery interval in the tank sizing calculator, and take the reserve and thermal freeboard from the tank sizing guide.

Ninety, one twenty and one fifty on the same 56 by 43 plan

Every station on this sheet has the same 56 by 43 inch plan, which is the most useful fact in the table: the footprint, the bund and the pad do not change across the family, only the height and the volume do. The 90 gallon SII-5690103CF42 is 41 inches tall and 99 pounds, the 120 without a stand is 51 inches and 130 pounds, the 150 gallon SII-5710103CF42 is 62 inches and 138 pounds, and this one stands 67 inches at 166 pounds. That means you can size the chemical room once and change your mind about volume later without re-cutting the bund. Note what the numbers say about the stand: at 67 inches this 120 gallon station stands taller than the 150 gallon tank at 62 inches, and at 166 pounds it is heavier than that tank at 138 pounds, while holding 120 gallons against 150, because the difference is a frame and not a bigger vessel. If what you need is more product between deliveries, the 150 is the tank; if what you need is a pump under the outlet, this is the station. Where the room takes several stations for several chemicals, keeping them on one plan makes the pads, the bunds and the spares interchangeable, and the only thing that then differs between duties is the chemistry.

Picked the 120 gallon tank? Add it to your cart above; freight is quoted to your ZIP before you pay anything.

An open vent path, a 14 inch lid, and nothing else published

• Venting first: this sheet publishes no vent, no breather and no fitting other than the lid, and a chemical feed station that cannot breathe is the most common self-inflicted failure on a dosing skid. Vented, the tank equalises while a pump draws and while a delivery fills it; blanked off, a polyethylene wall pulls inward on suction and balloons on fill. Specify the vent as part of the installation, sized to the fill rate rather than to the drain rate, and route it where the vapour is meant to go.
• Access: a 14 inch lid at 67 inches, which is at or above chest height for most people standing beside it. Bring the fill line to a coupling at working level rather than asking someone to lift a hose over the rim, and keep the lid closed except when it is being worked on.
• Outlet and pump connection: the sheet gives none. No outlet size, no drain and no bulkhead is published here, so none is stated, and the connection has to be specified as part of the order rather than assumed from the picture. Tell us the chemical and the duty and we will confirm what the part carries before it ships.
• Level and identity: the level belongs on a gauge read where the operator stands, and the chemical belongs on the tank in words. The level gauge selection guide compares radar, ultrasonic, hydrostatic and magnetostrictive for chemical service, and the label and signage compliance guide works through the marking that survives an inspection.
• Service limit: 120 F / 48 C, the only operating limit this sheet publishes, and the wall is rated at a specific gravity of 1.9.

Where the fill, the vent, the level device and the return line end up on the top of a station decides whether they fight each other for the rest of its life, and an hour on paper beforehand is cheaper than a hole in the wrong place: the top fitting placement guide sets out the sequence. Everything downstream is carried on its own support, never hung on the tank or the frame, with a flexible connector at the first joint so a pump start does not load the wall.

Day tanks, dosing points and the sample that tells the truth

A 120 gallon station is a day-tank size: hypochlorite, caustic, acid or polymer at a small water or wastewater plant; a dosing point beside a process line in a food, paper or metal finishing plant; cooling water treatment at a tower; bulk detergent at a wash or a laundry; a defined quantity at a lab, a hatchery or a greenhouse where drums are a nuisance and a bulk tank is overkill. Every one of those duties depends on knowing what is actually in the vessel, and a sample drawn badly returns a wrong answer that looks right, which is exactly what the chemical sampling protocol article is about. Draw from the same point, at the same depth, on the same cadence, and log it against the delivery.

Service list by chemical

One line per liquid the maker rates for this resin, with the concentration it is rated to and the fitting and gasket to order. Take your own concentration and temperature to the linked page or the chemical compatibility database before ordering.

• hydrochloric acid (37%, PVC fittings, Viton gaskets)
• sulfuric acid (98%, CPVC, Viton)
• phosphoric acid (85%, PVC, Viton)
• hydrofluoric acid (48%, PP/PVC, Viton)
• hydrofluosilicic acid (26%, PP/PVC, Viton)
• hydrogen peroxide (50%, PVC, Viton)
• peracetic acid (30%, 316SS, Aflas)
• ferric chloride (50%, PVC, EPDM)
• ferric sulfate (60%, PVC, EPDM)
• sodium hypochlorite (<16.5%, PVC, Viton)
• ethylene glycol (100%, PVC, EPDM)
• potassium carbonate (50%, PVC, EPDM)
• potassium hydroxide (saturated, PVC, EPDM)
• polyaluminum chloride (PVC, EPDM)
• propylene glycol (PP/316SS, EPDM)
• sodium bisulfate (PVC/PP, EPDM)
• sodium bisulfite (PVC/PP, EPDM)
• sodium thiosulfate (40%, PVC, EPDM)
• zinc orthophosphate (PP/316SS, EPDM) and ozonated water (up to 10 PPM, PVC, EPDM).Lower-density chemistries such as
• acetic acid (60%)
• aluminum sulfate (50%)
• calcium chloride (40%)
• DEF (32.5%, 316SS)
• urea solution (50%, PP/PVC)
• ferrous sulfate (20%)
• magnesium chloride (30%) and
• sodium carbonate (30%) are compatible as well, though they only need a 1.35-1.9 SG tank - this 1.9 SG shell simply gives you extra margin.

Marked Tree to your dock at 166 pounds

This station is molded at Marked Tree, Arkansas and ships from Arkansas as the sheet says, which is the short lane into the Mid-South and the lower Mississippi valley. The sheet gives the freight class as LTL, a mode rather than a numeric class, under NMFC 156600-03, and it shipments at 56 by 43 by 67 inches. Price the lane to your ZIP with the freight cost estimator; the listed price is before freight. At 166 pounds it comes off with a forklift under the frame or a pallet jack, never by the 14 inch lid and never with a sling around the tank body. Measure the door and the aisle on the route before the truck is booked, because 67 inches on a pallet is taller again than 67 inches on the floor. Set it on the finished, level pad, anchor the frame, then water-fill it once and hold it while you read the lid seal, the base of the tank and the floor under the stand, and drain it dry before the chemical arrives. The last job before the first delivery is the label: a feed station nobody can identify at a glance is the one that gets the wrong load. Keep the delivery paperwork with the tank; the serial number on the shell is what a warranty claim starts from.