Type JCS2 O-ring Pusher Seals | John Crane Mechanical Seals

Type JCS2

Integrated Double Mechanical Seal for Demanding Conditions

Type JCS2 seals are designed to be used in pumps for environmentally hazardous and abrasive liquids when operating limits for single-acting seals are exceeded. The double-balanced design of the seal allows the use of both pressurized and non-pressurized sealant fluid. This design ensures reliable and long-lasting operation under the most demanding conditions, reducing seal fluid consumption, and prevents environmental emissions.

Several variant of the design available for different services:

  • JCS2P — OEM (Sulzer Ahlstar Up) Engineered double external stationary spring O-ring mounted seal
  • JCS2A — Double application-specific seal for Sulzer liquid ring pumps and Andritz ACP pumps
  • JCS2M — Double application-specific seal for Sulzer multistage pumps
  • JCS2-MC — Double application-specific seal for Andritz MC-pumps
  • JCS2E — Double application-specific seal for Sulzer hot liquid pumps

Features

  • California Residents: PROPOSITION 65 WARNING
  • The seal is fully integrated into the pump.
  • No measurements required for installation, reducing risk for error.
  • Shaft misalignment does not pulsate the spring or wear out the O-ring.
  • Torque transmission with super elastic devices, combined with no drive pins at seals faces. This eliminates possible start-up failures.
  • Seal utilizes the integrated and advanced SmartFlow seal water control technology, reducing more than 90% seal water savings usage.

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