Espey WKA3 Carbon Floating Ring Seal

Features

Cartridge seal

Standardized dimensions

Short axial installation length (8.4 mm)

Dry running

Seal ring bears radial shaft movements

Compensates axial shaft movements

No sealing components mounted on the shaft and hence no additional shaft vibrations

Seal rings running contact-free – sliding faces and machine consume no additional power

Advantages

• Easy installation
• High reliability
• Maintainability
• Long-term operating time
• Alternative to radial shaft seal ring

 Operating range

Shaft diameter:

d = 28 … 80 mm (1.10″ … 3.15″)

Operating pressure: p = 1.075 bar (16 PSI) abs.

Operating temperature:

t = max. +200 °C (392 °F)

Sliding velocity:

vg = max. 40 m/s (131 ft/s)

Radial play: ±2.0 … 4.0 mm (±0.08″ … 0.16″)

Axial movement: theoretically unlimited

Materials

Seal ring: PTFE compound

Housing: 1.4301

Tension spring: 1.4571

Standards and approvals

• FDA

Recommended applications

• Chemical industry
• Food processing industry
• Machinery and plant building
• Pulp and paper industry
• Metal production and processing
• Small and medium-sized fans / blowers
• Air regulating devices
• Bearing seals
• Clean gases*