cBallast
Industrial Parts Catalog
Datasheet generated 2026-06-07
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Mechanical Seal 20mm Shaft Carbon/SiC/EPDM

John Crane · Pumps · Mechanical Seals · USA · johncrane.com
Part Number
SEAL-MECH-20  ·  HS 8484.20
Mechanical Seal 20mm Shaft Carbon/SiC/EPDM

Mechanical shaft seal 20mm, single spring type. Carbon vs Silicon Carbide faces with EPDM elastomers. Universal replacement for centrifugal pumps.

Technical Specifications

TypeMechanical Shaft Seal
Shaft Size20mm
Seal FaceCarbon vs SiC
O-RingEPDM
SpringSS316
TypeSingle Spring
Max Temp120C
Max Pressure12 bar

Properties

MaterialCarbon/SiC/EPDM/SS316
Pressure rating12 bar
Temperature range-20C to +120C
Standard size20mm Shaft
MOQ2

Compatibility

Part number shown for quick reference. Fits listed model. For other models or if unsure, contact us with pump type and serial number to verify compatibility.

Standards

Approvals