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FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia., 1 in Working Lg - Mechanical Shaft Seals
FLOWSERVEMechanical Shaft Seals

FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia., 1 in Working Lg

The FLOWSERVE Mechanical Shaft Seal, type designation 21, is a single-spring mechanical seal with a carbon ring, Viton gasket, and 18-8 spring material. It is designed for a 1-inch shaft diameter with a 1-inch…

SKU 3G-OTH-95340

Also listed as: 2110010 · 21 100 10

Brand
FLOWSERVE
Item
Mechanical Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia., 1 in Working Lg
Category
Mechanical Shaft Seals
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

FLOWSERVE
Manufacturer Part Number
21-100-10
Type
21, 18-8, Viton
Shaft Dia.
1 in
Working Lg
1 in
Spring Type
Single Spring
Ring Material
Carbon
Gasket Material
Viton
Spring Material
18-8
Seal Type Designation
21

Technical Documents

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

Product Description

The FLOWSERVE Mechanical Shaft Seal, type designation 21, is a single-spring mechanical seal with a carbon ring, Viton gasket, and 18-8 spring material. It is designed for a 1-inch shaft diameter with a 1-inch working length, identified by manufacturer part number 21-100-10.

Frequently Asked Questions

What is the FLOWSERVE 21-100-10 mechanical seal used for?

The FLOWSERVE 21-100-10 mechanical shaft seal is used to prevent leakage along rotating shafts in pumps, mixers, and compressors. Its carbon ring and Viton gasket suit water, light chemicals, and general industrial fluids. 3G Electric supplies this seal for worldwide maintenance and repair applications.

What are the specifications of the FLOWSERVE 21-100-10 mechanical seal?

The FLOWSERVE 21-100-10 is a type 21 single-spring mechanical seal with a 1-inch shaft diameter and 1-inch working length. It features a carbon rotating ring, Viton gasket, and 18-8 stainless steel spring. The manufacturer part number is 21-100-10.

Where to buy the FLOWSERVE 21-100-10 mechanical seal worldwide?

3G Electric sources and delivers the FLOWSERVE 21-100-10 mechanical seal worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this genuine FLOWSERVE seal.

How to install a FLOWSERVE type 21 mechanical seal?

Clean the shaft and housing bore thoroughly before installation. Lubricate the Viton gasket and carbon face with a compatible fluid. Press the seal evenly onto the shaft, ensuring the working length of 1 inch is maintained. Follow FLOWSERVE's generic installation guide for single-spring seals.

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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