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Трубы ВГП

г. Липецк, пл. Плеханова, д.3, оф.510 (БЦ "ЕВРОПОРТ")

бесплатный 8 (800) 707-18-83
опт +7 (4742) 232-787
розница +7 (4742) 71-00-30

ГОСТы


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К данному виду металлопродукции относятся трубы стальные водогазопроводные оцинкованныеи неоцинкованные с нарезанной или накатанной цилиндрической резьбой и без резьбы, изготовляемые по условному проходу (ДУ) и толщине стенки согласно ГОСТ 3262-75 .

Сортамент труб должен соответствовать ГОСТ 3262-75 .

По длине трубы изготовляют:

  • мерной длины - от 4 до 12м;
  • кратной мерной длины - в пределах мерной, с припуском на каждый рез по 5мм и продольным отклонением на всю длину + 10мм;
  • немерной длины, в пределах мерной.

По согласованию изготовителя с потребителем в партии немерных труб допускается до 5 % труб длиной от 1,5 до 4 м.

Для резьбы, изготовленной методом накатки, на трубе допускается уменьшение ее внутреннего диаметра до 10% по всей длине резьбы.

Масса 1м труб подсчитана при плотности стали, равной 7,85 г/см3. Оцинкованные трубы тяжелее неоцинкованных на 3%.

По группе точности изготовления водогазопроводные трубы подразделяются на:

  • обычной точности;
  • повышенной точности.

Стальные водогазопроводные трубы обычной точности изготовляют из сталей по ГОСТ 380  и ГОСТ 1050   без нормирования механических свойств и химического состава. Такие трубы применяют для водопроводов, газопроводов и систем отопления.

Стальные водогазопроводные трубы повышенной точности изготовляют из сталей по ГОСТ 1050   без нормирования механических свойств и химического состава. Такие трубы применяют для деталей водопроводных и газопроводных конструкций.

Стальные водогазопроводные трубы являются электросварными (с усиленным швом).

В зависимости от толщины стенки трубы могут легкимиобыкновенными и усиленными. Толщина стенки нормируется ГОСТ 3262-75 .

По требованию потребителя на обыкновенных и усиленных трубах с уловным проходом более 10мм резьбу наносят на оба конца трубы. Резьба может быть длинной и короткой.

Трубы могут поставляться как без резьбы, без муфты (б/р, б/м), так и с резьбой и с муфтой (с/р, с/м).

Иногда размер стальных водогазопроводных труб указывается в дюймах..

Расшифровка дюймов:

четверть дюйма -8мм; полдюйма - 15мм; три четверти дюйма - 20мм; дюйм - 25мм; дюйм с четвертью - 32мм; полтора дюйма - 40мм; два дюйма - 50мм; два с половиной дюйма - 65мм; 4 дюйма - 100мм.