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CPR BUSHING
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Catalog excerpts

CPR BUSHING - 1

john crahe\«. CPR BUSHING PTFE PROCESS RESTRICTOR Technical Specification A - Flexible Lip B - Jointing Pins C - O-ring D - Flush Grove E - Extraction Puller Holes F - Flush Holes Product Description I Performance Capabilities The CPR bushing is designed to reduce or restrict process media from entering stuffing box or seal chamber in turn extending packing or mechanical seal life. This product is designed for use in most types of rotating equipment which handles a wide variety of services. With the maintenance person in mind, the CPR Bushing Kit contains products for removal of existing packing and lantern ring plus items necessary for installation. • Temperatures: to 550°F/288°C • pH: 0 to 14 • Speed: 3,600 fpm/18m/s • Pressure: 500 psi/34 bar Supplied in kit form contents: • CPR bushing • Installation instructions • Two flexible shaft packing hooks with corkscrew type tip • Two alternative wood screw type packing hook tips • O-ring and bonding adhesive • Expanded PTFE gasket tape • Equipment tag *Packing set or mechanical seal are sold separately. • Available in multiple John Crane PTFE compounds. • Furnished split or non-split • Custom fit • Utilizes system pressure as an advantage • Proven John Crane restrictor lip design • Multiple sealing areas • Back flush control • Reduce stuffing box pressure • Can be used with clockwise or counter-clockwise shaft rotation • Reduce packing ring requirements • Increased packing life • Reduced water and power consumption • Reduced

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CPR BUSHING - 2

PTFE PROCESS RESTRICTOR Technical Specification Typical Arrangement Design A Split with restrictor lip *Also available in non-spilt design upon request Designed to reduce or restrict process media from entering stuffing box, reduce the number of packing rings required plus eliminate or reduce leakage to atmosphere. Optimum performance achieved when flush pressure maintained at higher level than process. This design is also ideal for use with cartridge type mechanical seals, contact your local John Crane representative for additional information. Typical Arrangement Design A Split without...

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CPR BUSHING - 3

john crane %., CPR BUSHING PTFE PROCESS RESTRICTOR Technical Specification Applications I Industries Served • Agriculture • Chemical and pharmaceutical • Food and beverage • General industry • Marine • Mining and minerals • Municipal waste and water • Oil and gas • Power generation • Pulp and paper • Steel and metals Dynamic Applications Common Services: • Paper stock • Slurries • Sludge • Asphalt • Food processing • Dry processing • Viscous products • Abrasives • Other applications containing particulates • Design “A” Rotating • Design “B” Rotating, Reciprocating • Reduce flush line...

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CPR BUSHING - 4

john crane %%, CPRBUSHING PTFE PROCESS RESTRICTOR Technical Specification Materials of Construction Bushing Components North America Europe United States of America United Kingdom Latin America Brazil Middle East & Africa Asia Pacific United Arab Emirates Singapore smiths bringing technology to life If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to their selection and use. In the interest of continuous development, John Crane Companies reserve the right to alter designs and...

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