Mechanical Seal 4801 — 2-1/2″

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.

Standard material build

• SC / SC / NIT — Silicon Carbide vs. Silicon Carbide faces; Nitrile elastomers
  Durable hard faces for wear resistance; cost-effective Nitrile for general service.

Seat style

• Notched O-ring seat — Hydromatic upper configuration
  (Many OEM builds use a carbon rotary—this version is upgraded to SiC/SiC for longer life.)

Key dimensions

• Seat: 3.375″ × 0.562″

• Rotary OD: 3.268″

• Working length: 1.299″

Cross-references

• 4801 / PS-4801

• Industry standard G-Type / John Crane 2100 (2-1/2?)

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