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FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 21, 3/4 in Shaft Dia., 0.88 in Working Lg - Mechanical Shaft Seals
FLOWSERVEMechanical Shaft Seals

FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 21, 3/4 in Shaft Dia., 0.88 in Working Lg

The FLOWSERVE Mechanical Shaft Seal, designated Type 21, is a single-spring mechanical seal with a carbon ring and Buna gasket. It features an 18-8 spring material and is designed for a 3/4-inch shaft diameter with a…

SKU 3G-OTH-95236

Brand
FLOWSERVE
Item
Mechanical Seal: Mechanical Shaft Seal, 21, 3/4 in Shaft Dia., 0.88 in Working Lg
Category
Mechanical Shaft Seals
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Technical Specifications

FLOWSERVE
Manufacturer Part Number
21-075-04
Type
21, 18-8
Shaft Dia.
3/4 in
Working Lg
0.88 in
Spring Type
Single Spring
Ring Material
Carbon
Gasket Material
Buna
Spring Material
18-8
Seal Type Designation
21
View Full Spec Sheet

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FLOWSERVE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FLOWSERVE Mechanical Shaft Seal, designated Type 21, is a single-spring mechanical seal with a carbon ring and Buna gasket. It features an 18-8 spring material and is designed for a 3/4-inch shaft diameter with a 0.88-inch working length (MPN 21-075-04).

Used in

Common applications for FLOWSERVE
Water and wastewater pumping — FLOWSERVE Type 21 mechanical seal (e.g., MPN 21-100-10) for centrifugal pumps in municipal water treatment
Hydrocarbon processing — FLOWSERVE Type 68 mechanical seal (e.g., MPN 68-062-214) for diesel and light oil transfer pumps
Food processing — FLOWSERVE Type 21 seal (MPN 21-137-04) for cooking oil circulation pumps in edible oil refineries
Chemical transfer — FLOWSERVE Type 51 narrow cross-section seal (MPN 51-087-05) for compact chemical dosing pumps
HVAC and cooling systems — FLOWSERVE Type 16 unitized rotary seal (MPN 16-062-11) for chilled water pump shaft sealing
General industrial mixing — FLOWSERVE Type 52 narrow cross-section seal (MPN 52-125-05) for agitator shafts in batch processing tanks

FLOWSERVE Products

3G Electric supplies FLOWSERVE mechanical shaft seals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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FLOWSERVE Narrow Cross-section Replacement Pump Shaft Seal: Mechanical Shaft Seal, 52, Single Spring (MPN 52-100-05). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: 316 Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 52.
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