ISO 21049 Pumps Shaft sealing systems for centrifugal and rotary pumps - First Edition
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- CEN EN 12561-2 Railway applications - Tank wagons - Part 2: Bottom emptying devices for liquid products including vapour return
- 13
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- CEN EN 12561-2 Railway applications - Tank wagons - Part 2: Bottom emptying devices for liquid products including vapour return
- 13.300
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- CEN EN 12561-2 Railway applications - Tank wagons - Part 2: Bottom emptying devices for liquid products including vapour return
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- 45
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- CEN EN 12561-2 Railway applications - Tank wagons - Part 2: Bottom emptying devices for liquid products including vapour return
- 45.060
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- CEN EN 12561-2 Railway applications - Tank wagons - Part 2: Bottom emptying devices for liquid products including vapour return
- 45.060.20
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- CEN EN 12561-2 Railway applications - Tank wagons - Part 2: Bottom emptying devices for liquid products including vapour return
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- CEN EN 12561-2 Railway applications - Tank wagons - Part 2: Bottom emptying devices for liquid products including vapour return
- BSI BS EN 12561-2 Railway applications - Tank wagons Part 2: Bottom emptying devices for liquid products including vapour return - CORR: August 31, 2011
- ISO 4200 Plain End Steel Tubes, Welded and Seamless - General Tables of Dimensions and Masses per Unit Length - Fourth Edition; Replaces ISO 134: 1973 and ISO 336: 1976
- SNV SN EN 12561-4 Railway applications - Tank wagons - Part 4: Devices for top filling and emptying of liquid products
- Картотека зарубежных и международных стандартов
International Organization for Standardization
Pumps Shaft sealing systems for centrifugal and rotary pumps - First Edition
N 21049
Annotation
This International Standard specifies requirements and gives recommendations for sealing systems for centrifugal and rotary pumps used in the petroleum, natural gas and chemical industries. It is applicable mainly for hazardous, flammable and/or toxic services where a greater degree of reliability is required for the improvement of equipment availability and the reduction of both emissions to the atmosphere and life-cycle sealing costs. It covers seals for pump shaft diameters from 20 mm (0,75 in) to 110 mm (4,3 in).
This International Standard is also applicable to seal spare parts and can be referred to for the upgrading of existing equipment. A classification system for the seal configurations covered by this International Standard into categories, types, arrangements and orientations is provided.
Автоматический перевод:
Герметизирующие системы Вала насосов для центробежных и роторных насосов - Первый Выпуск
Этот Международный стандарт определяет требования и дает рекомендации для запечатывания систем для центробежных и роторных насосов, используемых в нефти, природном газе и химических промышленностях. Это применимо в основном для опасных, огнеопасных и/или токсичных услуг, где большая степень надежности требуется для улучшения доступности оборудования и сокращения обеих эмиссии к атмосфере и затратам на запечатывание жизненного цикла. Это покрывает изоляции для диаметров вала насоса от 20 мм (0,75 в) к 110 мм (4,3 в).
