Power Generation Products
Many John Crane products specifically address the needs of the power generation industry by improving the productivity and performance of mission-critical operations:
O-ring Pusher Seals
Heavy-duty Type 270F and Type 48 Seals: Designed for critical high-pressure, high-temperature and high–shaft speed applications; used for boiler feedwater, circulation or start-up pumps and other high-energy applications
Type 5600 Series and Type 4600 Series Seals: Designed for sealing a wide range of fluids; used for numerous applications on condensate, cooling water, raw water, ash sluice, fuel oil and many other duties
Elastomer Bellows Seals
Type 1 Elastomer Bellows Fitted Seal: Designed for tight sealing spaces and abnormal shaft-end play, run-out and equipment tolerances; used for centrifugal and positive displacement pumps, mixers, agitators, compressors, blowers, fans and other rotating equipment
Split Seals
Type 3740 Cartridge Seal and Type 37FS Split Seal: Designed for rapid installation and maintenance without disassembling the equipment involved; used for small centrifugal pumps, split case pumps, vertical lift pumps, side-entry mixers and agitators with severe shaft run-out
Slurry Seals
Type 5860, Type 5870 and Type 5840 Slurry Seals: Designed for handling slurries with solids contents up to 60% by weight, without the need for water flush support; used for FGD slurry pumps, sludge pumps and coal slurry transportation.
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
Pedestal Assemblies: Custom bearing assemblies that include self-supported pedestal housing, thrust and/or journal bearing, oil inlet and drain connections, temperature monitoring and oil lift modules
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
Power Transmission Couplings
H Series: Designed for high performance, reduced moment and low windage; used for gas turbine drives, high-speed steam turbine drives and critical boiler feed pumps
M Series: Designed to provide a good level of angular, lateral and axial misalignment while maintaining a high level of balance integrity; used for electric motor or turbine drives in the oil and gas industry
ZMH Series: Designed for misalignment tolerance and corrosion resistance; used for long DBSE applications such as forced-draft cooling towers
L Series: Designed to provide a general-purpose, cost-effective solution for demanding industrial applications; used for critical circulator pumps, cooling water pumps, fans and blowers
A Series: Designed for simple coupling replacement without moving either the prime mover or the driven equipment; used for low-duty mechanical drives, conveyors, small pumps and dosing pumps
LASE-A-LIGN EX™: Designed for robust laser measurement and alignment; used for rotating machinery such as motors, pumps, turbines, compressors, gearboxes and blowers
Packing
Style 1625G: High-temperature graphite braided packings that offer dimensional stability, reduced process contamination and ease of use
Styles G57, G58 and G58I: High-purity, high-strength interlace braided flexible graphite packings designed to handle a wide range of fluids
100AL: Strong, compressible metallic packing that demonstrates remarkably good shaft conformability and low friction characteristics
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
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