High-quality, cost-effective, balanced seal
A double cartridge mounted face seal which is both stationary and balanced, which can be used in higher pressures and at higher speeds than unbalanced alternatives. it can be used with a pressurized barrier fluid (double seal applications) or unpressurized buffer fluid (tandem applications). The GMP-II seal is available in a wide range of materials to suit the application requirements.
FEATURES and BENEFITS
- Easy-to-install double cartridge design
- Balanced configuration runs cooler and lasts longer
- Cost-effective rebuild kits for easy in-field repair and reduced downtime
- Fits standard ANSI pumps — no modification required
- Stationary compression units offer improved face alignment and extended seal life
- Minimal distance to first obstruction; fits a wide range of pumps
SPECIFICATIONS
- 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
Materials
- Metallurgy: 316SS and Alloy 20
- Rotary face: Silicon carbide (SA)
- Inboard Stationary Faces: Chemical grade carbon; tungsten carbide
- Outboard Stationary Faces: Chemical grade carbon
- 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.
APPLICATIONS
- Chemical
- Pulp and paper
- Mining
- Power generation
