Efficient, Cost-effective Products
As demand for fresh water grows and natural resources become increasingly limited, managing costs can be difficult — even more so for plants in remote or elevated locations. And strict environmental standards for disposing waste or managing runoff can present additional obstacles. Fortunately, John Crane offers a wide range of innovative solutions that increase process efficiency while lowering costs, such as our John Crane seal support systems that are engineered to reduce contamination and our seals that require little to no external flush water. We’re a world leader in the design, manufacture and supply of components with proven reliability in seawater pumps, flushing pumps, transfer pumps, booster pumps and intake pumps. Our line of wastewater and clean water management products includes:
Elastomer Bellows Seals
Type 1: Full convolution, industrial duty elastomer bellows shaft seal
Type 2: Multi-purpose, non-pusher elastomer bellows seal available in single, double and balanced arrangements
Type 6: Low-pressure, elastomer bellows unitized seal head for small diameter pumps
Type 21: General duty, elastomer bellows shaft seal; an industry standard with OEMs
Type 502: Excellent in a wide range of hot-water and mild-chemical duties; designed for confined spaces and limited glands lengths
Type 2100: Compact, unitized, single-spring elastomer bellows mechanical seal known for durability and performance
Type 2106: Compact, unitized, single-spring elastomer bellows seal known for fast and easy installation and replacement
Type 4111: Suitable for use with aqueous solutions, engineered to reduce installation times, lower maintenance costs and optimize equipment performance
O-ring Pusher Seals
5600 Series: The first truly universal cartridge with built-in modularity
SB1: Robust single seal for clean fluids and low-percent solids slurries
SBW Quench Seal Arrangement: Reliable seal with non-pressurized buffer fluid and grease quench
SB2 Dual-seal Arrangement: Double-balanced dual-cartridge seal designed for tough duties
Packing
Styles K1730 and K1771: Constructed of high-tensile strength, abrasion-resistant fibers for excellent chemical resistance, dimensional stability, resilience and conformability
Style 1345: Constructed of abrasion- and chemical-resistant fibers that accommodate a wide range of abrasive and slurry services, temperatures, pressures and shaft speeds
Styles C1064 and 1993: Ideal for abrasive services where packing extrusion and sleeve or shaft wear are a concern
Style RPS44: Resilient packing designed to handle high axial and radial shaft movement
CVU/CVH: Automatic packings containing no lubricants or dispersions, well suited for non-contaminating services
Seal Support Systems
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
Splits Seals
Type 3740: Wet-running split seal incorporates the best features for fast and easy seal installation
Type 3740D: Dry-running split seal designed for the large shaft run-out and harsh operating conditions commonly associated with top-entry vessel mixing services and other dry-running applications
Type 3740XL: Wet-running split seal designed fast and easy seal installation, while providing reliable seal performance in demanding large pump and other big rotating equipment fluid services
Type 37FS: Fully split mechanical seal helps significantly reduce maintenance on larger, difficult-to-seal equipment. It is recommended for use on heavy-duty packed 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
Filtration Systems
John Crane's Seebach Particle Filters are used to clean water from the public drinking water network at the inflow into buildings and for the fine filtration of drinking water near to the point of use. They remove suspended sand grains and particles, such as rust, flax fibres, or debris from broken seals, from the pipe system.