ES21

 


ES21 METRIC
Single Spring, Elastomer Bellows Seal

Features and Benefits:
• Cost effective seal common to many process pumps
• Bellows design helps compensate for face wear
• Bi-directional
• Multiple face and elastomer choices
• Equivalent to European DIN standard Type 21’s
• Most common metric seat available as requested


Standard Materials of Construction:

• Faces:
• Carbon Graphite (Resin Impregnated), Antimony-
• Impregnated Carbon, Silicon Carbide, Tungsten
Carbide
• Elastomers:
• Buna, Viton®, Aflas®, Neoprene, EPDM
• Metallurgy:
• 304, 316, Monel


Operating Limits:

• Pressure: to 150 PSI.
• Temperature: -40°F to +400°F.

 
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