Slurry seals | Heavy-duty Cartridge Seal for Boiler Feed Circuit Applications
Features mechanical seal Type 5870
- California Residents: PROPOSITION 65 WARNING
- Smooth, open-profile seal faces resist clogging and receive cooling and lubrication from the pumped liquid, eliminating flush water seal support
- Quench water usage as an option
- Factory preassembled into a complete package and tested to ensure fast, accurate installation
Recommended Applications Type 5870
- Process pumps
- Other rotating equipment
About Mechanical seal Type 5870
The Type 5870 is a single, balanced, O-ring pusher cartridge seal. It is designed to operate unsupported in all paper stock consistencies and light slurry applications in Goulds Pumps’ TaperBore™ PLUS with Vane Particle Ejector (VPE) seal chambers. John Crane’s Type 5870 is open-profile and abrasive-resistant.
Design Features mechanical seal Type 5870
- Mechanical drive — eliminates overstressing of bellows
- Self-aligning capability — automatic adjustment compensates for abnormal shaft end play runout, primary ring wear and equipment tolerances
- Special balancing — for higher pressure applications and less wear
- Non-clogging, single-coil spring — not affected by buildup of solids
- Low drive torque — improves performance and reliability
Material mechanical seal Type 5870
- Seal faces: TC/TC
- O-rings: TFE (Aflas), EPDM, Viton
- Metals: AISI 316
- Springs: AISI 316
Operating range mechanical seal Type 5870
- Temperature Limits
-40°F to 300°F/-40°C to 150°C - Pressure Limits
300 psi(g)/21 bar(g)
- Speed Limits
36fps/11m/s
Product Description Type 5870
The Type 5870 Flushless Seal is designed to operate unsupported in all paper stock consistencies and light slurry applications in Goulds Pumps’ TaperBore™ PLUS with Vane Particle Ejector (VPE) seal chambers. John Crane’s Type 5870 open-profile, abrasive-resistant sealing faces positioned near the impeller, allows cool running and clog-free performance.
- Goulds Pumps’ TaperBore PLUS VPE seal chambers allow operation in up to 6% paper stock and light slurries up to 20% by weight without typical flush water seal support.
- Seal lubrication and cooling are supplied from the pumped fluids
