500 running meters of DN630 pipes to Kamyshin City
Initial conditions
In 2020, there was much work to do in spite of the coronavirus pandemics. A customer from Kamyshin City addressed us for estimation for a revamping project of TM-1 from Kamyshin CHPP to 1TK-3 in Lenin Street.
- Fast manufacturing and almost simultaneous shipments since the utility runs through a residential area;
- Only new steel tubes (not from old stocks, nor repaired) with certificates and passports;
- Most stringent inspection of the products, because of a complicated site acceptance test;
- Deferred payment.
Negotiations
A deferred payment during a pandemic crisis when all enterprises accept only 100% down payments was almost impossible to realize. That is why we proposed to subdivide the scope of supply into single, separately payable batches.
Procurement of brand-new steel tubes with certificates is no problem for us since it is the only condition of the tubes we process. The problem was that the required range of tubes was not at once available from the mill. "Uraltrubprom" OJSC could provide the tubes of the required GOST and size on July 27, whereas the customer was planning to commence the works in the middle of July.
We proposed the following solution. The first batch of the products (8 pipes and 2 bends) could be made of the tubes available from our stock and delivered to the project site on 21.07. The second batch consisting of bends could be available in the project site on 27.07, since Customer's priority were the fittings. We promised to supply the rest items in expedited manner, as soon as we receive the tubes from the mill. Thus, in spite of the shift in the delivery of the rolled stock, the installation works were commenced already on July 21, without adverse effects for Customer's schedule.
Manufacturing and shipping
Manufactured quantity:
- Труба Ст.10,20 (ГОСТ 10704-91, 10705-80) 630х8,0-1(800)-ППУ-ПЭ – 501 м;
- Отвод Ст.20 630х8,0-90-1(800)-ППУ-ПЭ L=1200 мм – 21 шт.;
- Неподвижная опора Ст.10,20 (ГОСТ 10704-91, 10705-80) 630х8,0-1000х50- 1(800)-ППУ-ПЭ L=1500 мм – 6 шт.;
- Концевой элемент Ст.10,20 (ГОСТ 10704-91, 10705-80) 630х8,0-1(800)-ППУ-ПЭ-МЗИ-КВ L=2200мм – 1 шт.;
- Металлическая заглушка изоляции 630-1(800)-ППУ-650 – 2 шт.;
- Комплект заделки стыка (муфта+пенопакет+термоклей+пробки+гильзы+держатели ОДК) 630-(800) – 105 шт.
Totally, 8 trucks were dispatched. We undertook for the delivery ourselves for expedited processing: the products were dispatched as soon as they were ready, without intermediary supply chain links and delays. Also, we distributed the budget for the logistics with maximum efficiency since our trucks are equipped with bolster inserts holding more pipes in prefabricated PUR foam insulation. For example, for 630х8.0 pipe, the rated load capacity of the truck is 8 pipe sections + 2 bends.
- laboratory tests of polyethylene and polyurethane;
- RRCS circuit integrity test (to be on the safe side, additional conductors were added to each pipe);
- NDT of welds with ultrasound and radiography.
That is why the products easily passed all inspections in-situ, and now Kamyshin citizens enjoy their new heat supply mains utility in reliable insulation. An article on our products was published in local media –– Revamping of the 1st heat supply mains utility in Kamyshin City.
Fill-up the inquiry form in our web site, and we will call you back and answer all questions which may arise.
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