Mechanical Seals Support Systems
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MECHANICAL SEAL SUPPORT SYSTEMS ASSET OPTIMIZATION FOR INCREASED PRODUCTIVITY ■- Global Solutions, Local Service.

Chesterton Mechanical Seal Chesterton® Mechanical Seal Support Systems are designed to optimize the seal’s operating environment in order to increase its reliability and Mean Time Between Repair (MTBR). The fluid film on which the seal operates is critical to its life expectancy; slurries, hot liquids, crystallizing solutions, and high viscosity and solidifying media often require adequately specified seal support systems in order for the mechanical seal to function correctly. Selecting the correct support system is crucial. The seal and equipment on which the seal support system is being...

Support Systems Single Seals Single seals operating in harsh processes are most commonly configured to seal flush systems such as Plan 32, Plan 33, or variants thereof, utilizing plant water supplies as a source of clean, cool flush. The plant water line is often connected directly to the seal or stuffing box chamber without adequate controls. Excessive water consumption and/or accidental loss of flush can result in premature failure. Our Flow Guardian™ provides control and indication of flush supply to ensure the mechanical seal is operating in its optimum environment. Seal Tank Systems...

WSS Water Saving System Plan 53P Automatic Water Support Tank Easy to install, complete solution with minimal water consumption for reliable operation of dual mechanical seals. The Chesterton Water Saving System (WSS) is a complete seal support system designed to maintain water barrier pressure and levels without maintenance. Containing all of the equipment required for connection to a dual mechanical seal, the Water Saving System is easy to install. Water Saving System Configuration Featuring a pressure regulator, non-return valve, and vent valve, the Water Saving System isolates the dual...

Operating Principle Water from the plant water line enters the system through the non-return valve. The pressure of the barrier fluid in the tank can be set via the pressure regulator. 3 Flow Indicator 4 Vent Valve Once at the correct pressure, the plant water line remains connected to automatically top up and maintain the pressure. Water consumption is minimal. (Water Line Connection) B To the Mechanical Seal C From the Mechanical Seal 6 Mounting Brackets 7 3-Way Valve 8 Drain Valve The barrier fluid is circulated to the seal and back to the system by the thermosyphon effect. Ordering...

BSS Buffer Support System Plan 52 Non-Pressurized Tank Easy to install, complete non-pressurized solution for reliable operation of dual mechanical seals. The Chesterton Buffer Support System (BSS) for dual mechanical seals is a complete solution for the environmental support of dual mechanical seals where product contamination from support fluid cannot be tolerated. BSS Configuration Supplied ready to install the BSS is preconfigured to allow simple connection and non-pressurized support to a dual mechanical seal. A dedicated fill valve allows quick and easy commissioning of the seal and...

Operating Principle The support fluid is circulated by thermosyphon effect or the mechanical seal’s pumping ring. Connect the system to the seal and add the support fluid via the fill valve until it is at the required level on the glass. 4 Drain Valve 5 Auxiliary Connections Ordering Codes Type Item Number Buffer Support System complete with all the Components Buffer Support System complete with Cooling Coil Tank Stands Telescopic Vertically and Horizontally Adjustable Stand - Stainless Steel Piping Kits Fixed Stand - Stainless Steel Telescopic Vertically and Horizontally Adjustable Stand -...

PSS Pressurized Support System Plan 53A Standard Tank Easy to install, complete pressurized solution, for reliable operation of dual mechanical seals. The Chesterton Pressurized Support System (PSS) for dual mechanical seals is a complete solution for the support of dual mechanical seals where product leakage cannot be tolerated. Pressurized Support System Configuration Supplied ready to install, the PSS features a non-return valve, pressure regulator with gauge, and pressure relief valve. A dedicated fill valve allows quick and easy commissioning of the seal and system arrangement. The PSS...

Operating Principle Close the fill valve and connect the air or nitrogen supply and adjust the regulator to the required pressure. Connect the system to the seal and add the support fluid via the fill valve until it is at the required level on the glass. The barrier fluid is circulated by thermosyphon effect or the mechanical seal’s pumping ring. Mounting Brackets Ordering Codes Type Item Number Pressurized Support System complete with the Components Pressurized Support System complete with Cooling Coil Fixed Stand - Stainless Steel Telescopic Vertically and Horizontally Adjustable Stand -...

Flow Guardian Plan 32/33S/54DM Specifically designed to supply uninterrupted, regulated seal flush water and deliver operational efficiency to the pump population. Managing flow rates while regulating important pressure differentials is possible. Costly seal failures are reduced while assisting in-plant water conservation initiatives. Flow Guardian Selection There is a Flow Guardian for every application. The DP50 Dual Flow Guardian is designed to measure flow entering and exiting a dual seal installation. This capability allows for early detection of leakage into the process stream as a...

Water Saver Features a thermally activated valve that automatically drains hot barrier fluid (only when necessary) to keep dual seals running cool and reliable. Valve opening temperature preset to work with S20 Seals. 95% water savings compared to open barrier fluid supply Recommended Applications Technical Data Chemical industry Pulp and paper industry Operating Parameters Pressure Limit Temperature Limit Temperature Set Point Connections 20.7 bar g / 300 psig* 125°C / 257°F 80°C / 176°F 1/4" NPT Materials of Construction Body Bushing Hose Barb Fitting 303 Stainless Steel / EN 1.4305 316...