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Chesterton 377 CarbMax Packing
Chesterton 377 CarbMax™ packing combines one of the highest carbon content fiber yarns using the latest formulations with the newest blocking agents. This yarn provides the enhanced strength and toughness of a continuous multi-filament carbon fiber with additional increased durability. This makes the 377 firm, yet resilient, with high thermal conductivity over the conventional carbon packing.
Chesterton 377 incorporates a special formulated inorganic dispersion applied throughout the packing braid which prevents penetration and migration of gases or liquids. The inter-braid construction provides superior interlocking between all the strands of yarn with the additional blocking agents added to the composition of this unique mechanical packing.
Features & Benefits- Dense, yet resilient, continuous multi-filament carbon yarn
- Latest formulation & construction combined with newest blocking agents
- High thermal conductivity for maximum heat dissipation
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Chesterton 412-W Synthetic Multi-Service Packing
Chesterton 412-W combines a newly developed synthetic composite yarn with a specially formulated break-in lubricant. Continuous filament center provides 10 times the tensile strength of typical packing fibers.
- Fibrous covering enables 412-W to absorb twice the PTFE blocking agents of conventional packing
- Chesterton interbraid construction helps prevent migration of blocking agents so that 412-W maintains density to prevent wicking throughout its service life
- Incorporates a purified colloidal lubricant to prevent failure at start-up and maintain continuous lubrication throughout the break-in process
412-W Synthetic Multi- Service Packing Technology Advantages:
- Pure white packing
- Superior tensile strength
- Holds twice the PTFE blocking agent of traditional fibers
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Chesterton 425 Food Process Packing
Chesterton 425 is manufactured with a virgin PTFE filament and a white oil lubricant. It is perfectly suited for use in valves and also in rotating equipment such as blenders, mixers, agitators and other rotating equipment. Chesterton 425 complies with the USDA requirements for minimal food contact and FDA specification 21 CFR, 178.3620 for lubricants with incidental food contact as well as 177.1550 perfluorocarbon resins.
Features & Benefits- Meets USDA requirements
- Meets FDA requirements 21 CFr 178.3620(a) and 21 CFr 177.1550
- For use in valves, pumps, and other rotating and reciprocating equipment
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Chesterton 442 Split Seal
High-Performance Seals Available in Large DiametersThe Chesterton 442 split seal is ideal for equipment that is difficult and time-consuming to disassemble, such as large pumps, vertical pumps, and horizontal split case pumps. This proven, compact design can be used in a wide variety of equipment and process fluids.
The patented, high-performance split technology allows the 442 to operate from vacuum to high pressures.
- Compact design allows for easy installation and a fit advantage on most equipment
- Split, low-cost repair kits reduce ongoing maintenance costs even further
- Designed with the installer in mind, the ball-and-socket O-Rings provide a quick and easy leak-free seal without the use of adhesives
- Captive screws cannot fall out, making installation straightforward and reliable
1NSF version available upon request.
Features:
- Fully split mechanical seal
- Ball-and-socket O-Rings
- Adjustable gland tabs
- Patented, automatic centering
- Patented, full-vacuum capability
- Engineered for high pressure
- Non-clog external springs
- Non-fretting to equipment
- Dry run capable
- Large seal diameter options
- Integral dual flushport
- Certified to NSF/ANSI 61
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Chesterton 442C Split Cartridge Seal
Chesterton is the world leader in design innovation of split seals. Our innovative split seals have been used to seal thousands of process-critical pieces of rotating equipment with exceptional results and many years of leak-free operations.
Chesterton was the first company to offer commercially-viable split seals for plant-wide use, which revolutionized pump sealing across industries. Since that time, we’ve launched a number of innovative split seal designs now used as a standard by companies around the globe. We offer shaft diameters ranging from 25-914 mm (1-36 in.)
Common sizes currently in stock at Powerflo Products Inc.
Powerflo is an authorized Chesterton Mechanical Seal Distributor in California.
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Chesterton 442C XL Cartridge Split Mechanical Seal
Equipment disassembly leads to high maintenance and operating costs as well as safety risks, but with extremely large pumps and other rotating equipment the stakes are even higher. The Chesterton 442C XL Split Seal, which suits equipment shafts from 5.00″ (125 mm) upto 7.75″ (195 mm), allows for seal installation without disassembly of large pumps, helping customers avoid extended downtime, lifting of heavy components, and disruption to nearby equipment.
The XL also has the following features that simplify reliable installation and operation:
- Spring Carrier Plate: Reduces installation errors and saves time
- Unique O-Ring Grooves: Greater sealing capability for use in more applications
- Automatic Self-Aligning Faces: Aligned and compressed automatically without manual handling
- Interlocking Rotary Face: Positively locates the face halves for greater sealing reliability
Features:
- Simple cartridge installation—without equipment disassembly
- Innovative design with superior performance
- Fits the majority of rotating equipment
- Easy field repair
- Certified to NSF/ANSI 61
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Chesterton 442M Mixer Split Seal
Split Seal that Accommodates Radial and Axial Shaft Motion for Industrial Mixers & Agitators
The Chesterton 442M split mechanical seal eliminates the need for equipment disassembly during seal installation and reduces maintenance costs. This split technology includes vacuum-to-positive pressure capability, which is especially beneficial in process vessel material transfer. It accommodates large radial and axial shaft motion associated with industrial mixers, agitators, reactors, and blenders.
- Installation is made easy with patented, automatic centering
- Uses many patented features allowing for easy and cost-effective field repair
- The unique ball-and-socket O-Rings are the easiest to install and are leak-free without the use of adhesives
- Available in sizes ranging from 20 mm to 610 mm (.75″ in.-24 in.)
Features:
- Ball-and-socket O-rings
- Patented, automatic centering
- Patented, captive fasteners that will not fall out
- Large axial and radial motion handling capability
- Full vacuum and high pressure sealings
- Non-clog external springs
- Non-fretting to equipment
- Dry run capable
- Compact design
- Integral dual flushport
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Chesterton 442PR Split Seal with Pumping Ring
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.
Features:
- 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
- Certified to NSF / ANSI 61
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Chesterton 477-1 Carbon Fiber Packing
Chesterton 477-1 carbon fiber packing combines a new yarn formulation with superior blocking agents. New, low modulus yarn provides the strength associated with continuous filament carbon fibers plus greater flexibility. This makes 477-1 strong, yet pliable, without the brittleness of conventional carbon packing.
Chesterton 477-1 incorporates a high-purity dispersion of inorganic platelets which prevent penetration of gases or liquids through the packing. Inter-braid construction locks these blocking agents within the packing ring.
Features & Benefits
- Strong, yet pliable, staple carbon yarn
- Unique inorganic blocking agent stops gas/liquid penetration
- Molybdenum-based corrosion inhibitor prevents stem pitting
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Chesterton 477-1T Carbon/PTFE Packing
Chesterton 477-1T is a tough, yet pliable, continuous filament carbon yarn packing impregnated throughout with PTFE to provide a non-contaminating, non-staining carbon yarn packing. Developed for the tough applications in the pulp and paper industry, 477-1T is specially designed to be used in high pressure feeders, pre-steaming vessels and applications that are moving abrasive slurries. This packing’s combined force of carbon yarn and PTFE dispersions increases its chemical resistance against strong caustic and acid mediums.
Chesterton 477-1T is also an excellent bottom anti-extrusion end ring when coupled with Chesterton 1400R Carbon-Reinforced Graphite Packing in rotating equipment. This combination is ideal for reducing or eliminating flush water from a stuffing box.Features & Benefits- Non-contaminating, non-staining carbon yarn packing
Unique inorganic blocking agent stops gas/ liquid penetration - Molybdenum-based corrosion inhibitor prevents stem pitting
- Non-contaminating, non-staining carbon yarn packing
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Chesterton DualPac® 2212 Packing
A reliable sealing solution can save you both time and money on your pump operation. Traditional braided pump packing requires frequent gland adjustments and often burns out quickly, especially under high speeds. This results in packing failure and equipment damage.
Chesterton® DualPac 2212 is created using our patented DualPac Technology, which combines a burn-resistant material on the packing’s shaft side with a highly resilient outer fiber. This formulation creates a unique, long-lasting packing that uses the gland load more efficiently and achieves a reliable and quicker break-in period. This ability keeps the packing internally loaded against the rotating member while, at the same time, resisting burning and shaft scoring. DualPac 2212 gives users peace of mind in the toughest sealing applications.
DualPac Technology Advantages
- Significantly fewer gland adjustments than traditional packing
- Simplifies your inventory: you can use the same packing for end rings and sealing rings
- Better utilization of gland load in sealing configuration
- Minimizes shaft scoring
- Requires less overall maintenance
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Chesterton GraphMax Packing
Chesterton GraphMax is an inter braided graphite packing. Carbon yarns are incorporated in the braided structure in a way that allows very tight braiding and corner reinforcement that improves the strength of the packing. This dramatically improves the packing’s resistance to extrusion and blow out, one of the limitations of traditional, flexible, graphite tape packings.
GraphMax can be used in demanding rotating applications such as those in the power, pulp and paper, and ore processing industries where temperature and pressure resistance can be required in combination with chemical and abrasion resistance.
GraphMax’s applicability in valves makes it a convenient plant-wide general service packing.
Features & Benefits
- Exclusive construction for plant-wide use in pumps and valves
- Maintains structural integrity for easy removal
- Carbon fiber-reinforced graphite strands provide maximum extrusion resistance and high-pressure capability
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