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FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia. - Mechanical Shaft Seals
FLOWSERVEMechanical Shaft Seals

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia.

The FLOWSERVE Replacement Pump Shaft Seal is a mechanical shaft seal designated as Type 21, designed for a 1-inch shaft diameter and compatible with cooking oil. It features a single spring made of stainless steel…

SKU 3G-OTH-95351

Also listed as: 2110004 · 21 100 04

Brand
FLOWSERVE
Item
Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia.
Category
Mechanical Shaft Seals
Available to Order
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

FLOWSERVE
Manufacturer Part Number
21-100-04
Type
21, Cooking Oil
Shaft Dia.
1 in
Spring Type
Single Spring
Gasket Material
Rubber
Spring Material
Stainless Steel
Seal Type Designation
21

Technical Documents

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

Product Description

The FLOWSERVE Replacement Pump Shaft Seal is a mechanical shaft seal designated as Type 21, designed for a 1-inch shaft diameter and compatible with cooking oil. It features a single spring made of stainless steel and a rubber gasket material, identified by manufacturer part number 21-100-04.

Frequently Asked Questions

What is the FLOWSERVE 21-100-04 mechanical shaft seal used for?

The FLOWSERVE 21-100-04 mechanical shaft seal is used to prevent leakage along rotating shafts in pumps handling cooking oil. It is designed for a 1-inch shaft diameter and is commonly applied in food processing, edible oil refining, and industrial fluid handling systems.

What are the specifications of the FLOWSERVE 21-100-04 shaft seal?

The FLOWSERVE 21-100-04 is a Type 21 mechanical shaft seal with a 1-inch shaft diameter. It features a single stainless steel spring and a rubber gasket material. The manufacturer part number is 21-100-04, and it is designed for use with cooking oil.

Where to buy the FLOWSERVE 21-100-04 shaft seal worldwide?

3G Electric supplies the FLOWSERVE 21-100-04 mechanical shaft seal worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the FLOWSERVE 21-100-04 mechanical shaft seal?

To install the FLOWSERVE 21-100-04, ensure the shaft and housing bore are clean and free of burrs. Lubricate the seal faces and rubber gasket with compatible oil. Press the seal evenly onto the shaft using a sleeve tool, avoiding direct impact on the sealing faces.

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 Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia., Cooking Oil (MPN 21-100-250)
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