ps-3021
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3021 / 3802 Mechanical Seal (PS-3021 ; PS-3802)— 3″
3021 / 3802 Mechanical Seal (PS-3021 ; PS-3802)— 3″
View ProductSingle Spring Mechanical Seal 3021 / 3802 | PS-3021 PS-3802 Equivalent
Direct-fit aftermarket replacement G-Type mechanical seal equal to industry standard 3021 / 3802 and PS-3021 / PS-3802. Built to the John Crane 2100-style design for reliable, leak-tight performance in demanding pump service.
Key specs: • Shaft size: 3.000″ single spring seal • Seat: 3.875″ × 0.625″ • Rotary OD: 3.898″ • Working length: 2.062″
Material build
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VIT / SIC / SIC — Viton elastomers; Silicon Carbide vs. Silicon Carbide faces
Excellent chemical/temperature resistance and wear durability.
Cross-references
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3021 / 3802, PS-3021 / PS-3802
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Industry standard G-Type / John Crane 2100
Have questions? Check out our Single Spring Seal Guide or call us anytime—we’re here to help.
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.
Please click “specifications” below for OEM numbers and Pump Nameplate Data
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