cBallast
Industrial Parts Catalog
Datasheet generated 2026-06-07
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Mechanical Seal 25mm Shaft Carbon/SiC/Viton

John Crane · Pumps · Mechanical Seals · USA · johncrane.com
Part Number
SEAL-MECH-25-FKM  ·  HS 8484.20
Mechanical Seal 25mm Shaft Carbon/SiC/Viton

Mechanical shaft seal 25mm with FKM/Viton elastomers. Carbon vs Silicon Carbide faces. For hot water, oil, and chemical service pumps.

Technical Specifications

TypeMechanical Shaft Seal
Shaft Size25mm
Seal FaceCarbon vs SiC
O-RingFKM (Viton)
SpringSS316
Max Temp180C
Max Pressure16 bar

Properties

MaterialCarbon/SiC/FKM/SS316
Pressure rating16 bar
Temperature range-20C to +180C
Standard size25mm Shaft
MOQ1

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