API 682 PLAN 52/53A

MP52 series meets API 682 Plans 52 & 53A—Plan 52 for low-pressure buffer fluid, Plan 53A for pressurized barrier fluid. ASME-certified reservoirs, standard or custom, for chemical/petrochemical industries. Ensures safety & environmental protection.

• Flanged or elliptical heads available
• A finned tube cooling system
• 100% more cooling surface area than is standard in the industry
• Comes with 3, 5, or 8 gallon reservoirs with 6″ or 8″ diameter
• Available in 304SS, 316SS, or carbon steel
• Meet full API 610 and 682 compliance (latest edition)
• Designed per ASME Section VIII
• ASME U Stamp available
• Built with DFAR compliant materials
• Built with Div. I, Section IX Weld Procedures
• Designed to MAWP of pump

According to API 682 Seal Plan 52, a non-pressurized reservoir system is a protective buffer between the product and the surrounding atmosphere. Several seal systems are used to isolate toxic fluids/gases that, when exposed to the atmosphere, can change state. For this reason, buffer fluid is circulated between the inner and outer seal chambers with a circulating pump.

The MP52/53A Reservoir (Pot) provides buffer fluid to the secondary seal for lubrication under normal operations and serves as an overflow for process fluid in a failure scenario. The reservoir can also be equipped with level, pressure, and temperature instrumentation to provide real-time process feedback on mechanical seal health.