Type 48SC O-ring Pusher Seals | John Crane Mechanical Seals
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Type 48SC

Dry-contacting Secondary Containment Seal

Dry-running, contacting seals employ a technology based on careful material selection and precise control of contact forces. They are designed to operate dry, with the containment chamber between the seals being vented to a flare or vapor recovery system.



  • California Residents: PROPOSITION 65 WARNING
  • Shaft-mounted unit with a carbon primary ring and a specially shaped silicon carbide mating ring and drive collar designed to enhance cooling
  • Narrow radial section, simplicity and lower cost, making it an attractive option for many services


Temperature Limits

32°F to 400°F/0°C to 205°C

Pressure Limits

Dry: 5 psi(g)/.35 bar(g)

Wet: 500 psi(g)/35 bar(g)

Speed Limits


Recommended Applications

  • 流程泵
  • 其他转动设备

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