Norwesco 3725 Gallon Black Heavy Duty Horizontal Leg Tank

The buyer here is filling with something heavier than water

Read the duty off the grade line, because that is the only place this sheet states one. The specific gravity cell reads 1.9 and the maximum contents cell reads 59026 lb, while the same shell full of water at 8.34 pounds per gallon comes to 31066 lb. The product application cell is blank, so the record names no service and neither will we. What it does tell you plainly is that the figure the maker prints for contents is well above the figure for water, and that is the whole reason a buyer picks this part number rather than a general-purpose body of the same gallonage.

So the operation that ends up with 44049B is usually one that fills from a supply line or a nurse truck, holds a working stock of a liquid denser than water on a flat piece of ground, and draws it back out through the bottom port on a pump. Nothing about that duty is transport; the name says leg tank and the legs are moulded into the body to hold it on a surface. Look at the three numbers together before you commit: 145 inches of length is twelve feet of ground, 92 inches of width is closer to eight, and at 97 inches the top of the manway is above head height for most people who will work on it.

The honest limitation on this record is that the structural cell is empty. There is no band detail, no hoop detail, no sump and no hold-down entry anywhere on the sheet, so how the tank is supported and restrained where you put it is a local question and not one this listing answers. The install specific: set out the 145 by 92 inch footprint with a tape and a can of paint before the truck is booked, because a leg tank wants full, even contact under all of its feet and that is much easier to arrange on bare ground than after the tank is sitting on it. If the volume itself is still open, the tank sizing calculator turns a daily draw into gallons and the guide to choosing a tank size explains why the answer rounds up.

A three inch bulkhead with a reducer sitting in it

Start at the pump and work backwards, because on a leg tank the pump is the reason the port is where it is. The outlet cell on 44049B reads a 3 inch PP female NPT bulkhead fitting with a 2 inch reducer, which is the single most useful line on the whole sheet: the tank arrives with the larger port in the shell and the smaller thread available at it, and you decide at the skid which one your suction line takes. A pump that wants volume gets the 3 inch. A pump already plumbed in the smaller size does not need an adapter bought separately.

The inlet cell is blank. That means filling happens through the top opening unless you arrange otherwise, and the top opening is a 16 inch threaded vented manway. Sixteen inches is a generous circle for a fill wand, a level float or a light, and the vent is part of the closure rather than a separate fitting, which matters because a tank being drawn down hard needs air in as fast as liquid leaves.

The install specific for this page is about where the pump sits, not what it is. Put it low and close, so the suction line runs short and downhill from the bulkhead rather than climbing to reach the pump; a horizontal body only gives you the head the liquid level provides, and on a shell 97 inches tall that head disappears fast as the tank empties. Nothing on this record settles the suction line size, the fitting on the far end of it or the pump itself, and we are not going to write those onto the page. Send us the part number with your pump and we will confirm the arrangement with the factory before the order is placed.

Two 3725 gallon part numbers, 1450 lb and 1320 lb

Four rows at the top of that table are one shell. Same 145 inch length, same 92 inch width, same 97 inch height, four part numbers. The two that publish a weight publish two different figures, 1450 lb here and 1320 lb on 44047B, and the two that do not publish one leave the cell blank. Those are the printed facts and they are where the choice between the rows lives; this page is not going to tell you what the maker means by the words in either name, because the sheet does not say and guessing at it would be an invention.

What the sheet does give you, side by side, is a grade line and a warranty cell on each row. This record prints 1.9 and a five year term. The 44047B row prints its own grade figure, which is the lower of the two, and a three year term. If the mass per gallon of what you are storing is the question your purchasing department is asking, that pair of cells is the answer, and it is the reason to open both listings rather than pick on gallons alone.

The bottom two rows are the neighbours in the range. N-42990 is 1800 gallons in a body one inch longer than this one and much narrower, which is the row to look at when width is the constraint rather than volume. 42602 is 5025 gallons in the same 92 inch width at 190 inches long, the next size up without another inch across.

Two rows look the same? The difference is the wall; call 866-418-1777 with the liquid and we will say which, or ask for a quote on both.

Where 59026 lb of contents changes the conversation

The number to carry into any specification meeting on this tank is 59026 lb. That is the maximum contents figure the sheet prints alongside a 1.9 grade line, and it sits against 31066 lb for the same shell full of water. Both figures are printed here exactly as the maker prints them and neither has been computed, scaled or compared. When someone asks whether the tank will take a product heavier than water, the honest answer is to hand them those two cells and the part number rather than an opinion.

The other limit worth writing on the job file is temperature: 120 F / 48 C. That is the service ceiling this sheet gives, and it applies to the whole body, not just the fitting. Freight class is 300 and there is no NMFC number printed beside it.

Two pieces of background reading sit around this record. Our write-up on how the applicator and leg tank range is scoped on paper, and what those categories actually cover is the right place to start if you are choosing between body styles in this family. Our longer piece on the loaf-style portable utility tanks and the paperwork questions that come with running them in a farm fleet covers the smaller portable bodies that people often compare against a fixed leg tank of this size.

Listed chemical service for this shell

The maker's list for this resin: each liquid, the concentration it is rated to, and the fitting and gasket that go on the order. Verify your own service on the linked page or 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
• 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 (
• 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

Two plants, 145 inches of tank, one bill of lading

Two plants carry 44049B: St. Bonifacius, Minnesota and Fairfield, Texas. Which one your order leaves from changes the lane and therefore the number, which is why we quote it per ZIP rather than pretending there is one figure. Freight class 300, mode LTL, and at 1450 lb on a 145 by 92 by 97 inch body this tank prices on the space it takes up rather than on its weight. Put the destination ZIP into the freight cost estimator before you build a schedule around it; the listed price is before freight.

Receive it on its feet. This body sits on moulded legs, and the first thing to look at when the trailer curtain comes back is whether every one of those feet is flat on the deck with nothing under it and nothing wedged beside it. A leg tank that has travelled with a foot bridged over a chock or a strap has carried its whole empty weight through one point, and that is the check nobody thinks to make because everybody is looking at the top of the tank instead. Do it before a single strap is released, while the load is still exactly as it was carried.

Whoever signs the delivery note should be the person who is going to live with the tank, not whoever happens to be nearest the gate. Mark the vent and the outlet on the outside of the shell so nobody caps the wrong one in the dark.