Non-contacting mechanical seals operate with inert gas as a seal face lubricant. They provide a highly durable mechanical seal for demanding refinery and chemical processing applications. Non-contacting sealing technology can also be used to preserve product purity.
John Crane non-contacting mechanical seals can assist companies who are seeking a zero-emission/zero leakage mechanical seal solution to achieve environmental and safety regulations.
Showing 1–10 of 10 Products
Non-contacting, Gas-lubricated Seals for Small-bore Rotating Equipment
The rotating mating ring features micromachined spiral grooves that compress an inert barrier gas and create a lifting force on...
Externally Mounted, Gas-lubricated, Non-contacting Cartridge Double Seal for Pumps
The John Crane Type 2800EH is a non-contacting dual seal for non-turbo small-bore rotating equipment applications, meeting the requirements of...
Externally Mounted, Gas-lubricated, Non-contacting Cartridge Double Seal For Pumps
Unique spiral groove technology patented John Crane spiral grooves are machined into the mating ring faces. A pressurized suitable inert...
Non-contacting Gas-lubricated Dual Cartridge Seal for Large-bore Pumps
The patented technology and tolerant design make these seals ideally suited for applications requiring specially engineered seals with performance even...
Non-contacting, Gas-lubricated Dual Cartridge Seal for Large-bore Pumps
The John Crane Type 2800XP is a non-contacting dual seal for non-turbo, large-bore rotating equipment applications, and complements the John...
Non-contacting, Gas-lubricated Dual Cartridge Seal for Large-bore Pumps
Type 2800XS is the designation used for specially engineered seals designed for operation outside the normal parameters of Types 2800XA and 2800XP...
Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps
As the worldwide leader in spiral groove technology, John Crane is the first to utilize non-contacting seals...
Non-contacting Dual Gas Seal Cartridge for Pumps
The Type 2874 is an internally pressurized, gas-lubricated, non-contacting dual cartridge seal designed for use in API, ANSI and DIN...
Non-contacting Secondary Containment Seal
The 28SC is a gas-lubricated, non-contacting secondary containment seal, which is applied as a component of a multiple seal...
Non-contacting, Metal Bellows, Outward Pumping Dual Pressurized Gas Lubricated Seal
Reliably sealing high and low temperature process fluids up to 425°C (800°F), the Type 2874HTC incorporates unique HTC (high-temperature, corrosion-resistant) metal bellows technology with non-contacting…