Single Spring Mechanical Seal 4801 | PS-4801 Equivalent

Direct-fit G-Type replacement equal to industry standard 4801 and PS-4801. Built to the 2-1/2″ John Crane 2100 style for reliable, leak-tight performance.

Key specs: • Shaft size: 2-1/2″ single spring seal • Seat: 3.375″ × 0.562″ • Rotary OD: 3.268″ • Working length: 1.299″

Standard material build

• SC / SC / VIT — Silicon Carbide vs. Silicon Carbide faces; Viton elastomers
  (Many OEM builds use a carbon rotary—this version is upgraded to SiC/SiC for longer life.)

Seat style

• Notched O-ring seat — Hydromatic upper configuration

Cross-references

• 4801 / PS-4801

• Industry standard G-Type / John Crane 2100 

Please click “specifications” below for OEM numbers and Pump Nameplate Data

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