Ask us first. Engineering desk 2 h first reply Water tank 20/20 water test answers in millimeters.

Five things, all handled by the same engineer: consultation on duty and sizing, review of a drawing you send us, design-for-manufacture analysis, material selection and tolerance guidance. One engineer owns your file from the first sketch to the moment panels are pressed, so you are not re-explaining the job to a ticket queue. Send a STEP file, a DWG, a PDF or a photograph of a hand sketch; what comes back is a marked-up drawing, not a form letter.

Two hours during working hours in China time. That first reply is a real engineering response, not an acknowledgement: it will either answer the question or tell you exactly which dimension, pressure or water analysis is missing before it can be answered. Complex tender reviews take longer, and we will say so in that first reply rather than going quiet.

STEP and IGES for 3D, DWG and DXF for 2D, plus PDF for marked-up prints. If all you have is a sketch on site paper, photograph it and send that. For 3D we prefer STEP over a native format because it survives the round trip without version problems. File naming and revision control conventions are set out in the guidelines on this page so that the drawing you approve and the drawing we press from are provably the same one.

Yes, and that is the better starting point. Give us three things: the stored volume the duty requires, the footprint and headroom available, and the fill and draw arrangement. From those our engineers lay out a panel configuration using 2x1, 1.5x1, 1x1, 1x0.5 and 0.5x0.5 m modules and return a general arrangement. If you are still choosing between materials, the buying guide walks through the decision in six steps.

It depends on chloride content, temperature and whether the water is potable. 316L stainless resists chlorides far better than 304; galvanized steel to ISO 1461 gives roughly 85 micrometres of zinc for outdoor duty; GRP/SMC is inert and the usual answer for potable storage; enameled steel suits aggressive municipal water. Send a water analysis and we will put the recommendation in writing rather than leaving it to a chart.

Panel and assembly tolerances are published in the guidelines above. The two that catch people out on site are the plinth, which must be flat to 3 mm over any 3 m, and the bolt torque and gasket compression schedule, because the seal is made by gasket compression rather than by the bolt itself. Both are issued with the approved drawing so the installer is not guessing.

We will look at a drawing at tender stage without an order in place, because a specification that cannot be manufactured helps nobody. What we will not do is silently redraw someone else's design and return it as ours. If the review finds a problem, you get the problem, the reason and the options, and you are free to take that to any manufacturer.

The standard inspection and test plan covers material receipt, panel pressing, punching and dimensional check, assembly, and a hydrostatic test before dispatch. Witness points and ITP templates are downloadable from this page. If you want a third-party inspector at a specific stage, say so before the drawing is approved so the hold point is written into the production order rather than added later.

They are on the datasheets and downloads page, in PDF for specification and DWG or STEP for dropping straight into your layout. Technical datasheets, grade selection charts, chemical compatibility tables and tolerance tables are all there, along with the current certificates listed on the certifications page.

Engineering sits on the same site as the production lines in Wucheng County, Dezhou, which is how a drawing change reaches the floor quickly. You can book a visit or take the virtual factory tour first. To open a file, email guan@lvjiatank.com, call +86 186 0534 4338, or use the form on the contact page.

Yes. Send the duty, the footprint and the head and we will check the water tank sizing against a real panel layout rather than a rule of thumb. Most over-sizing we see comes from adding a safety margin to a figure that already had one. A water tank sized from the actual draw-down is cheaper to buy and cheaper to keep clean.

A full water tank drawing review: we mark up the general arrangement, flag anything that cannot be pressed or bolted as drawn, and suggest the panel configuration that uses the fewest special parts. You get the marked-up water tank drawing back whether or not you place the order, because a water tank specification that cannot be built wastes everyone time.

Give the position from a fixed datum on the water tank, not from a wall that may move on site. Every nozzle, manhole and ladder fixing is punched into the water tank panel at the factory, so a penetration added later means a replacement panel. List size, orientation and flange standard for each one, and our engineers will place them on the water tank drawing for your approval.

An annual internal inspection and a clean, with gaskets checked at the same visit. A bolted water tank is designed to be opened, so a partitioned water tank can be cleaned one side at a time without losing supply. Keep the water tank test sheet and the drawing together; the next inspector will want both. Guidance is on this page and in the buying guide.

That is most of what the desk does. A water tank that has to pass a 2.1 m door, sit in a live plant room or land on an existing bund needs the panel module chosen around the access, not the other way round. Send photographs and dimensions of the route as well as the space, and the water tank layout will be drawn to fit both.

Yes, from the same engineer. Bolt torque values, gasket replacement, panel replacement and re-testing are all covered, and a damaged water tank panel can be replaced individually rather than scrapping the water tank. Quote the water tank drawing number and we can pull the exact build. Email guan@lvjiatank.com or use the contact page.

Pick the range first, because panel module and thickness follow from it. The five are GRP/FRP/SMC, stainless steel, hot-dip galvanized, enameled steel and BDF underground water tanks, 13 models each. Open the nearest model, take its panel grid into your layout, then send the drawing to the desk and we will confirm it against the press. The full catalogue lists every model in one place.