Class E balanced seals E03, E04, E13, E14
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E03 / E13 Balanced seal
Class E balanced seals
E03, E04, E13, E14
Features
- Rotating single-spring pusher seals
- Balanced
- Robust seal design
- Available as O-Ring or wedge variants
- Hard/hard seal face combination available
- Independent of direction of rotation
(E13, E14) - Available as single, dual and tandem arrangements
Advantages
- Ideally suitable for abrasive, corrosive and viscous fluids
- Over 35 years of running reference in the field
- Narrow cross-section allows the seal fitment in narrow stuffing boxes
- Lower inventory since all parts except seal ring composite and follower are interchangeable with Class E unbalanced seals (E01, E02, E11, E12).
Operating range
Shaft diameter: d = 25 … 100 mm (1" ... 3.94")
Pressure: p = vacuum to 60 bar (870 PSI)
Temperature:
t = -75 °C ... +260 °C (-103 °F ... +500 °F)
Sliding velocity: vg = 15 m/s (49 ft/s)
Axial movement: ±1.5 mm
Materials
(Consult EB for applications outside above limits). Seal ring: Carbon graphite resin impregnated,
Carbon graphite antimony impregnated,
Tungsten carbide, Silicon carbide
Mating ring: Silicon carbide, Tungsten carbide
Secondary seals: FKM, NBR, FFKM, PTFE
Springs: SS 316
Metal parts: SS 316, other materials on request.
Recommended applications
- Process industry
- Oil and gas industry
- Refining technology
- Petrochemical industry
- Chemical industry
- Pharmaceutical industry
- Power plant technology
- Water and waste water technology
- Building services industry
- Food and beverage industry
- Sugar industry
- Horizontal and vertical pumps, agitators, mixers
Recommended piping plans
API Plans 01, 02, 03, 11, 12, 13, 14, 21, 22, 23, 31, 32, 41, 52, 53A, 53B, 53C, 54, 55, 61, 62, 65A, 65B, 66
Product variants
E04 / E14 Balanced seal
