SAPPD 1,1-7,5/3-35K series differential pressure automatic maintenance system, based on the differential hydraulic piston

Система автоматического поддержания перепада давления САППД 1.1-7.5/3-35К

Application

SAPPD 1,1-7,5/3-35K series differential pressure automatic maintenance system, based on the differential hydraulic piston, is designed for storage, cooling and increasing the volume, as well as for automatic maintenance of barrier liquid differential pressure in the cooling system of 2TM series dual mechanical seals and 2TMR series dual mechanical seals, intended for agitators.

Specific design features:

  • Differential pressure automatic maintenance system of a block-type includes external heat exchanger, differential hydraulic piston and manual booster pump;
  • construction of differential hydraulic piston and external heat exchanger of a split type (for the purpose of simplifying the cleaning of internal surfaces);
  • bimetallic thermometer is fitted at the inlet of barrier liquid into the heat exchanger;
  • indicating pressure gage is installed in the inlet line of barrier liquid into the seal;
  • device for visual control of the barrier liquid level in the differential hydraulic piston;
  • sensor for indicating the minimum level of barrier liquid in the differential hydraulic piston;
  • union for connection of the temperature sensor;
  • safety valve;
  • SAPPD 1,1-7,5/3-35K are applied in piping plan 53С according to API 682.

Materials:

  • stainless steel of grade 12Х18Н10Т and steel of grade 20Х13;
  • rubber compounds based on fluorine rubber and perfluoro elastomer.

Main characteristics of SAPPD 1,1-7,5/3-35K

№ п/п Наименование параметра Значение
1 Барьерная жидкость масло минеральное (И-5, И-10), масло синтетическое, дизтопливо, вода
2 Охлаждающая жидкость химобессоленая вода или другие теплоносители
3 Объем барьерной жидкости, дм3
наибольший 10
наименьший 8
4 Температура барьерной жидкости на входе в теплообменник, 0C не более 80
5 Рабочее давление барьерной жидкости МПа (кг/см2), не более 3,5 (0,35)
6 Рекомендуемая температура охлаждаемой жидкости, 0C 20...30
7 Рекомендуемый расход охлаждающей жидкости, м3/час 0,6...1,2
8 Полезная площадь теплообмена змеевика, м2 0,3...0,35
9 Эффективная мощность теплообменника, не менее кВт 3,5
10 Давление срабатывания предохранительного клапана, МПа (кг/см2) 3,5 (35)
11 Масса без приборов КиП и А, кг 83
Additional information

САППД SHALL NOT BE SUBJECTED TO REGISTRATION IN STATE HEALTH AND SAFETY SUPERVISION AUTHORITY: (ITEM 6.2.2, SUB-ITEM 5) OF “RULES FOR DESIGN AND SAFE OPERATION OF PRESSURE VESSELS”, LABOR PROTECTION REGULATORY DOCUMENTS НПАОПА 0.00-1.07.94 (ITEM 1.1.3, SUB-ITEM 13)

If you have any questions on the selection of the necessary equipment or if you would like to buy SAPPD 1,1-7,5/3-35K series differential pressure automatic maintenance system, based on the differential hydraulic piston, please, contact us via a contact form.

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