Features
Pressurized barrier system (closed circuit) for use in seal systems with high pressures and/or for hazardous/environmentally harmful processes. The SPO Plan 53C range is available with a pressure booster, cooler (finned tube, water or air cooler with fan) and a wide range of instruments.
Circulation in accordance with API 682 / ISO 21049: Plan 53C
Advantages
- Pressurization is by means of a pressure booster
- Automatic setting of the barrier pressure via reference pressure: simple and reliable mode of operation
- Safe operation even in case of pressure changes
- Barrier pressure is created without any need for connection to a nitrogen supply
- Available with finned tube, water or air coolers with fan
- Modular system: combination with a wide range of system components/instruments possible
Standards and approvals
- PED 2014/68/EU (Design and production in accordance with EU Pressure Equipment Directive)
- ASME VIII, Div. 1 (Design, calculation and production)
Recommended applications
- Petrochemical industry
- Chemical industry
- Oil and gas industry
- Refining technology
Functional description
The SPO is designed to perform the following functions of a barrier system:
- to pressurize the buffer chamber
- leakage compensation
- to cool the seal
Pressurization (> process pressure) prevents the process medium from getting into the barrier circuit or the atmosphere. Pressurization is supplied by a pressure booster in dependency on the process pressure. Circulation in the barrier circuit takes place by the thermosiphon principle or by forced circulation, e.g. with a pumping screw.