Chesterton 442PR Split Pumping Ring Seal

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Chesterton 442PR Split Seal with Pumping Ring
Maximum Heat Removal in Hot Water Services

  

​​​​​​The design of the Chesterton 442PR split seal is ideal for hot heater drains and boiler feed pumps where cooling to a single seal must be provided.

The high capacity pumping ring provides for maximum heat removal and reliability in hot water services. The 442PR delivers the lowest cost of ownership from its ease of installation, low cooling, and reliability.

High-flow pumping device
Designed for API Plan 23
Engineered for high ​​pressure
High strength external springs
Non-fretting to equipment
Premium, high-graphite carbon face
Ball-and-socket O-Rings
Patented, automatic centering
Technical Data​​​
Sizes20 mm to 200 mm (0.75" to 8.00​")
Pressure711 mm or 28" Hg Vacuum to 31 bar g (450 psig*)
Temperature120° C ( 250° F)
Speed20 m/s (4000 fpm)
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Article: What Determines Seal Leakage? (English)http://chestertondocs.chesterton.com/Rotating/What Determines Seal Leakage.pdfArticle: What Determines Seal Leakage? (English)pdf
Technical Material Reference (English)http://chestertondocs.chesterton.com/Rotating/EN23875_Technical_Material_Reference.pdfTechnical Material Reference (English)pdf
Catalog: Rotating Equipment Solutions - Mechanical Seals, Pump Packing, Gaskets, and Morehttp://chestertondocs.chesterton.com/Rotating/RotatingCAT.pdfCatalog: Rotating Equipment Solutions - Mechanical Seals, Pump Packing, Gaskets, and Morepdf
Brochure: Chesterton Split Seals - Solutions for Large Rotating Equipment (English)http://chestertondocs.chesterton.com/Rotating/EN22283_SSforLargeEquip.pdfBrochure: Chesterton Split Seals - Solutions for Large Rotating Equipment (English)pdf
Environmental Control Plans (English)http://chestertondocs.chesterton.com/Rotating/EN23873_MS_Enviro_Control_Plans.pdfEnvironmental Control Plans (English)pdf

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