GMP-I Single Cartridge Seal

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Tax included
Reference GMP-I Single Cartridge Seal
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Cost-effective and versatile balanced seal

A single cartridge mounted face seal with a stationary, balanced design for service in higher pressures and higher speeds than typical unbalanced alternatives. The GMP-I is for use in clean general service and moderate abrasive service. It is available in a wide range of materials to accommodate application requirements. Its balanced design allows it to perform in pressure and vacuum service. Repair kits are available for easy repair.


  • Preassembled cartridge is easy to install
  • Balanced internal design runs cooler and provides longer seal life
  • Fits standard ANSI pumps — no modification required
  • Rebuild kit available for easy in-field repair and reduced downtime
  • Attached setting clips prevent lost parts or damage to equipment
  • Minimal distance to first obstruction; dimensionally compatible with a wide range of bearing protectors
  • Stationary springs allow better face/seat alignment


  • Minimum Shaft Diameter:        1.000 in.    /    25.4 mm
  • Maximum Shaft Diameter:    4.000 in.  /      101.6 mm
  • Maximum Pressure: 300 psi / 20 bar
  • Maximum Vacuum: 28 in Hg / 711 mm Hg
  • Maximum Temperature: 400°F / 204°C
  • Maximum Surface Speed: 5000 fpm / 25.4 m/s
  • Spring Configuration:        Multiple stationary coil springs


  • Metallurgy: 316SS and Alloy 20
  • Rotary face: Silicon carbide (SA)
  • Stationary faces: Chemical grade carbon; tungsten carbide
  • Springs: Hastelloy C®
  • O-rings: Fluoroelastomer standard (Aflas® and Kalrez® offered as alternatives)

Other materials available. Consult Garlock.

Hastelloy C is a registered trademark of Haynes International. Aflas is a trademark of Asahi Glass Company. Kalrez is a registered trademark of DuPont.


  • Chemical
  • Pulp and paper
  • Mining
  • Power generation
GMP-I Single Cartridge Seal