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Food and Pharmaceutical PTFE Braided Packings

John Crane styles C1056 and C1057 are specifically designed to service the food and beverage as well as chemical and pharmaceutical industries, using FDA-compliant PTFE fibers and lubricants. Featuring dimensional stability and resilience, these styles are also ideal to service other critical applications where contamination is a concern.

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c1056 c1057 lg


  • Styles C1056 and C1057 are available in standard cross-section sizes from 1/8" to 1" in 1/16" increments.
  • As John Crane spools, these standard sizes are available for immediate shipment. Metric and larger sizes are available upon request.
  • Packing can be die-formed to exact dimensions for ease of installation and enhanced performance.


Temperature Limits

-450°F to 500°F/-268°C to 260°C

Pressure Limits

C1056/C1057 pump: 300 psi(g)/bar(g)

C1056/C1057 valve: 2,500 psi(g)/170 bar(g)

Speed Limits

C1056: 2000fpm/10m/s

C1057: 1500fpm/7.5m/s

pH Range

0 to 14

Recommended Applications

  • Process Pumps
  • Mixer and Agitators
  • Other Rotating Equipment
  • Valves

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