Chemical Application Products
Specialized applications such as aggressive acids, dewatering chemicals and high-pressure, high-speed polymerizing fluids require extensive materials research and proven designs. John Crane products are specifically developed to meet the unique needs of customers in the chemical processing industry:
Non-Contacting Seals
Type 2800EX Cartridge Seal: Capable of handling up to 20% by volume solid in suspension
Type 2800 Series: Polymerization-mitigating seal that eliminates frictional heat and reduces emissions by up to 92%
Metal Bellows Seals
Type 670 Metal Bellows: Extremely durable in aggressive environments
Type 680 Metal Bellows: Provide corrosion resistance in low-temperature applications
GL1B Metal Bellows: Made with Inconel 625 for strength and corrosion resistance
Type 609 Metal Bellows with Grafoil: Heat transfer-specific; ideal for pumps with limited seal chamber clearance
Type 2609 Dual Metal Bellows and Grafoil Cartridge Seal: Provides superior seal face stability at elevated temperatures
Slurry Seals
Type 5860 Slurry Seal: Heavy duty for the harshest abrasive slurry environments
O-ring Pusher Seals
Type 48SC: Provides emissions compliance with reduced cost of ownership
Type 5600 Cartridge Seal: Modular design that allows unmatched versatility and reduced inventory
Vessel and Agitator Seals
Type 32 Mixer and Agitator Seals: Cleaning-in-place or sterilization-in-place (CIP/SIP) seal; excellent for operation in vacuum conditions
Seal Support Systems
WCH/WCV/K2S: Water-cooled heat exchangers for use where water is readily available
GR1/1C: General duty reservoir that can withstand pressure up to 16.3 bar while providing buffer/barrier fluid to a dual-seal arrangement
GR2/2C: General duty reservoir that can withstand pressure up to 30 bar while providing buffer/barrier fluid to a dual-seal arrangement
GR3/3C: General duty reservoir that can withstand pressure up to 73 bar (stainless steel) or 62 bar (carbon steel) while providing buffer/barrier fluid to a dual-seal arrangement
GP-S/GP-D: Non-API gas control panel for filtering, regulating and monitoring gas supply to gas-lubricated pump seals
Cyclone Separators: Typically used in an API Plan 31 arrangement and incorporated in the seal flush line (API Plan 11) from the discharge of the pump
Safeunit Ultima: Specially designed to control seal water flow and pressure in extreme conditions
Safeclean: Removes impurities and particles, providing clean seal water for stuffing boxes and mechanical seals
Hydrodynamic Bearings
Fixed Geometry Thrust Bearings: Offer extreme running precision and stability; energy-efficient under low to medium loads
Fixed Geometry Journal Bearings: An economic and energy-efficient solution for many rotating equipment applications
Tilting Pad Journal Bearings: Offer optimal rotor stability due to exceptional stiffness and damping; ideal for use in high-speed machinery operating under low to medium loads
Tilting Pad Thrust Bearings: Feature increased support area to accommodate axial loads and ability to adjust to varying conditions during operation
Clearance Seals: Enhanced thermoplastic and metallic labyrinth seals reduce running clearances, improve safety and increase efficiency and reliability for critical equipment
Power Transmission Couplings
A Series: Urethane element couplings known for quick installation without moving prime mover or driven equipment
L Series: Designed for demanding industrial applications with a scalloped hub for the shaft
H Series: High-performance couplings designed for unspared machines
Packing
Style C1065: Chemlon Graphite Fiber, ideal for controlled leakage and extrusion resistance at high pressures and shaft speeds
Style 387I: A special high-temperature/pressure and corrosion-inhibited valve stem packing
Style 1625G: High-temperature graphite braided packing that offers dimensional stability, reduced process contamination and ease of use
Style 1335: Cost-effective, general-service packing constructed of the highest-quality synthetic fibers and lubricants
Style 1340: Cost-effective, general-service graphited packing designed to handle a wide range of fluids at moderate to high temperatures, pressures and shaft speeds
Style CVU/CVH: Automatic packings containing no lubricants or dispersions, well suited for non-contaminating services
MLS Series: Cartridge seals designed for rotary positive displacement pumps handling high-viscosity fluids
Filtration Systems
Liquid Filtration: Filters designed for almost any liquid application, from lubrication, hydraulic or bearing oil systems to water injection systems
Seal Gas Filtration: Removes liquid and particle contamination to allow continuous supply of clean, dry gas
Fuel-Gas-Filtration: Individually tailored for maximum reliability, regardless of the condition of the supply gas
Fuel Oil Filtration: Patented elements that remove water and particle contamination for maximum reliability
Double 3-way and 6-way Transfer Valves: Provides continuous operation while one side receives maintenance
Filter Elements: Patented design for maximum performance and running time between change outs