black steel pipe


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black steel pipe

Uncoated steel pipe, called “black” because of the dark-colored iron-oxide scale formed on its surface; usually used for low-pressure hot-water heating pipes.
References in periodicals archive ?
heating distribution with 9 mixed heating circuits dn 80 to dn 32, - 330 m black steel pipe dn 150 to dn 15 as heating pipes, incl.
pipelines are welded to the distributor as a black steel pipe thermal insulation: mineral wool insulating sleeves alukaschiert: distribution pipes from the ug technical center, risers, distribution pipes in the false ceiling, distribution pipes below the windows, other radiator connections mineral wool insulating sleeves, aluminum-coated with galvanized sheet metal coating: manifolds, rlt device connections, lines below 2.00 m from rfb mineral wool mats alukaschiert: heat exchanger, distributor room heating radiators: office space: in all offices, heating is provided via heating and cooling ceilings, as well as radiators.
- 2 000 m black steel pipe dn 15 to dn 125, - 13 high-efficiency heating pumps up to 12 m 3 / h, - 350 pieces fittings dn 15 to dn 125, - 1 460 m 2 swing floor heating, - 500 m 2 underfloor heating, - thermally separated angle distributor up to 12 m 3 / h, - buffer tank 2 000 l, - 2er cascade freshwater station changing clothes, - 1 st.
wc-care combinations, 2 900 m heating pipe black steel pipe dn 10 to dn 80, 1 pc.
circulating pumps; piping indoors: black steel pipe dn15 200 m, dn20 80 m, dn25 180 m, dn32-dn50 130m, dn65-dn100 150m, dn125-dn150 90m; outdoor pipeline: double pipe plastic-coated dn125 45m; underfloor heating 1 145 m 2 ; 10 pcs radiators, disassembly of a hot water tank 200 liters; disassembly black steel pipe dn40 20m, dn80 120 m.
1 000 m black steel pipe with thermal insulation in nominal sizes from dn 15 to dn 50, - approx.