Pressurized barrier system (closed circuit) for use in seal systems with high pressures and/or for hazardous/ environmentally harmful processes. The SPO (Plan 53B) range is available with a pressure accumulator, cooler finned tube, water or air cooler with fan) and a wide range of instruments. Circulation in accordance with API 682 / ISO 21049: Plan 53B
•Pressurization is by means of a preloaded bladder accumulator
•The nitrogen is separated from the barrier medium by membranes in the accumulator: nitrogen cannot get into the arrier medium or process medium
•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)
A refilling unit has to be provided.
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