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Type 1648

API 682-qualified, Single Cartridge, Type "A" O-ring Pusher Seal

The Type 1648 is a high-performance single cartridge pusher seal designed to help prevent emissions leakage in most refinery applications. It is applied in non-hydrocarbon, non-flashing hydrocarbon and flashing hydrocarbon services. Process leakage is further contained by standard incorporation of a floating throttle bushing.

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1648 lg


  • Qualification-tested per API 682
  • Complies with API 682 technical design requirements
  • Standard materials, per API 682
  • Fits API 682 Table 1 and 2 seal chambers
  • Computer-optimized, low-emission seal face designs


Temperature Limits

-40°F to 500°F/-40°C to 260°C

Pressure Limits

1000 psi(g)/69 bar(g)

Speed Limits


Recommended Applications

  • Process Pumps
  • Other Rotating Equipment

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