G-Type / 2100
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Single Spring Mechanical Seal 3015 | PS-3015 Equivalent (G-Type / 2100)
Single Spring Mechanical Seal 3015 | PS-3015 Equivalent (G-Type / 2100)
View ProductSingle Spring Mechanical Seal 3015 | PS-3015 Equivalent (G-Type / 2100)
Direct-fit aftermarket 3015 / PS-3015 mechanical pump seal built in the G-Type / John Crane 2100 style—a compact, unitized, single-spring elastomer bellows seal design widely used across pump applications. Ideal for repairs where you need OEM-style fit and reliable sealing performance.
Key specs: • Shaft size: 1-3/8″ (1.375″) single spring seal • Seat: 2.000″ x 0.437″ • Rotary OD: 1.929″ • Working length: 1.024″
Material build: VIT / SIC / SIC — Viton elastomers; Silicon Carbide vs. Silicon Carbide faces
Excellent chemical/temperature resistance and wear durability.Please click “specifications” below for OEM numbers and Pump Nameplate Data
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
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Single Spring Mechanical Seal 3020 | PS-3020 Equivalent (G-Type / 2100)
Single Spring Mechanical Seal 3020 | PS-3020 Equivalent (G-Type / 2100)
View ProductSingle Spring Mechanical Seal 3020 | PS-3020 Equivalent (G-Type / 2100)
Direct-fit aftermarket 3020 / PS-3020 mechanical pump seal built in the G-Type / John Crane 2100 style for reliable, leak-tight performance. This is a common single-spring seal used across industrial and HVAC/hydronic pump applications—match dimensions and OEM references before ordering.
Key specs: • Shaft size: 2-1/8″ (2.125″) single spring seal • Seat: 3.000″ x 0.562″ • Rotary OD: 2.717″ • Working length: 1.181″
Material build (standard)
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VIT / SIC / SIC — Viton elastomers; Silicon Carbide vs. Silicon Carbide faces
Excellent chemical/temperature resistance and wear durability.
Fitment
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O-ring seat design
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Listed as compatible with VSC-style pump assemblies
Please click “specifications” below for OEM numbers and Pump Nameplate Data
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.
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Single Spring Mechanical Seal 3021 / 3802 | PS-3021 ; PS-3802 Equivalent
Single Spring Mechanical Seal 3021 / 3802 | PS-3021 ; PS-3802 Equivalent
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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Single Spring Mechanical Seal 3022 | PS-3022 Equivalent (G-Type / 2100)
Single Spring Mechanical Seal 3022 | PS-3022 Equivalent (G-Type / 2100)
View ProductSingle Spring Mechanical Seal 3022 | PS-3022 Equivalent (G-Type / 2100)
Direct-fit aftermarket G-Type mechanical seal equal to industry standard 3022 / PS-3022. Designed in the John Crane 2100-style configuration for reliable, leak-tight performance in common pump services.
Key specs: • Shaft size: 2-3/8″ (2.375″) single spring seal • Seat: 3.250″ x 0.562″ • Rotary OD: 3.150 • Working length: 1.299″
OEM reference
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OEM number: 81974941
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Brand: Flowserve Corporation
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Nameplate data: VCS Mechanical Seal
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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Single Spring Mechanical Seal 3170 | PS-3170 Equivalent
Single Spring Mechanical Seal 3170 | PS-3170 Equivalent
View ProductSingle Spring Mechanical Seal 3170 | PS-3170 Equivalent (G-Type / 2100)
Direct-fit aftermarket replacement mechanical seal 3170 / PS-3170 built in the G-Type / John Crane 2100 & 2106 style for reliable, leak-tight performance. This seal is a common solution for 2.000″ shaft pump repairs where a floating mating ring (Type G) configuration is required.
Key specs: • Shaft size: 2.000″ single spring seal • Seat: 2.750″ x 0.500″ • Rotary OD: 2.598″ • Working length: 1.500″
Material build (standard):
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VIT / SIC / SIC — Viton (FKM) elastomers; Silicon Carbide vs. Silicon Carbide faces
Excellent chemical/temperature resistance and wear durability.
Key Features:
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Upgraded design: Replaces the original carbon rotary face with a silicon carbide rotary face for enhanced durability and abrasion resistance.
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Includes Viton #129 O-ring for sleeve
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Seal type: T-25 L-shape floating seal
Cross Reference:
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OEM Number: P5001890
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Brand: Bell & Gossett (a Xylem brand)
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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Single Spring Mechanical Seal 3793 | PS-3793 Equivalent (G-Type / 2100)
Single Spring Mechanical Seal 3793 | PS-3793 Equivalent (G-Type / 2100)
View ProductDirect-fit aftermarket replacement G-Type mechanical seal equal to industry standard 3793 / PS-3793, built in the John Crane 2100/2106 style for dependable, leak-tight performance. This seal is commonly used in larger pump applications where a 3-1/2″ shaft single spring unitized seal is required.
Key specs: • Shaft size: 3-1/2″ (3.500″) single spring seal • Seat: 4.375″ x 0.625″ • Rotary OD: 4.402″ • Working length: 2.189″
Materials & design notes:
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Material build: Carbon / Silicon Carbide / EPDM
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Design note: Center-mount O-ring seat (no notch)
OEM reference:
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OEM number: P5001895
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Brand: Bell & Gossett (A Xylem Brand)
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Common nameplate data: VSX / VSC including 14×16×17 and 12×14×17.5B configurations
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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Single Spring Mechanical Seal 3804 | PS-3804 Equivalent (G-Type / 2100)
Single Spring Mechanical Seal 3804 | PS-3804 Equivalent (G-Type / 2100)
View ProductSingle Spring Mechanical Seal 3804 | PS-3804 Equivalent
Direct-fit aftermarket G-Type replacement mechanical seal equal to industry standard 3804 / PS-3804, designed in the John Crane 2100 style for dependable, leak-tight pump performance.
Key specs: • Shaft size: 2-1/2″ (2.500″) single spring seal • Seat: 3.375″ x 0.562″ • Rotary OD: 3.268″ • Working length: 1.811″
Material build: Carbon/Silicon Carbide/EPDM
OEM reference (helps match manuals/invoices)
This seal is commonly cross-referenced to:
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OEM number: P5001891
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Brand: Bell & Gossett (A Xylem Brand)
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Nameplate data: VSX Series – Standard Construction
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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Single Spring Mechanical Seal 3883 | PS-3883 Equivalent (G-Type / 2100 Style)
Single Spring Mechanical Seal 3883 | PS-3883 Equivalent (G-Type / 2100 Style)
View ProductSingle Spring Mechanical Seal 3883 | PS-3883 Equivalent
Direct-fit aftermarket G-Type mechanical seal equal to industry standard 3883 / PS-3883, designed in the John Crane 2100 / 2106 style for reliable, leak-tight performance. Commonly found in applications referencing Sta-Rite/Pentair OEM numbers and specific pump models (example listing: STA-RITE DHJ3-170MS3).
Key specs: • Shaft size: : 1-1/4″ (1.250″) single spring seal • Seat: 1.875″ x .0437″ • Rotary OD: 1.811″ • Working length: 1.024″
OEM cross references shown/commonly used
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U9-433SS (Sta-Rite / Pentair reference)
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U109-220
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U90451SS (Viton material version reference)
***Please note: At Seal House, we have seen this seal in pumps where OEM manual states U109-220 or U90451SS. U90451SS is 3883 in viton material. Our standard replacement is 3883, for non chemical applications and temperatures below 220°F . For chemical service or temperatures above 220°F, you need 3883 with viton material, which is equivalent to OEM U90451SS. Please contact us for viton pricing and delivery
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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Single Spring Mechanical Seal 3992 | PS-3992 Equivalent (G-Type / 2100)
Single Spring Mechanical Seal 3992 | PS-3992 Equivalent (G-Type / 2100)
View ProductSingle Spring Mechanical Seal 3992 | PS-3992 Equivalent
Direct-fit aftermarket replacement G-Type mechanical seal equal to industry standard 3992 / PS-3992, built in the John Crane 2100 / 2106 style for reliable, leak-tight performance in common pump services. Designed for use with a 1-1/2″ cup seat and matches configurations commonly used in 2100S 38mm rotary assemblies.
Key specs: • Shaft size: 1-1/2″ (1.500″) single spring seal • Seat (mating ring): 2.125″ x 0.437″• Rotary OD: 2.125″ • Working length: 1.181″
Material build: Carbon/Viton (FKM)— Viton elastomers with Carbon rotary face (typical PS-3992/VCFJF listings)
Compatible components
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Designed for use with 1-1/2″ cup seat. Matches configurations used in 2100S 38MM rotary assemblies.
Please click “specifications” below for OEM numbers and Pump Nameplate Data
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.
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