FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 21, 1/2 in Shaft Dia., 0.81 in Working Lg
The FLOWSERVE Mechanical Shaft Seal, designated Type 21, is a single-spring mechanical seal with a carbon ring and a Viton gasket. It features an 18-8 spring material and is designed for a 1/2-inch shaft diameter…
SKU 3G-OTH-94979
Also listed as: 2105005 · 21 050 05
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
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Product Description
The FLOWSERVE Mechanical Shaft Seal, designated Type 21, is a single-spring mechanical seal with a carbon ring and a Viton gasket. It features an 18-8 spring material and is designed for a 1/2-inch shaft diameter with a 0.81-inch working length (MPN 21-050-05).
Frequently Asked Questions
What is the FLOWSERVE Type 21 mechanical seal used for?
The FLOWSERVE Type 21 mechanical seal is used in industrial pumps and rotating equipment to prevent fluid leakage along a rotating shaft. It is suitable for water, light chemicals, and general process applications where a single-spring, carbon-ring seal with Viton gasket provides reliable sealing.
What are the specifications of the FLOWSERVE 21-050-05 mechanical seal?
The FLOWSERVE 21-050-05 mechanical seal has a 1/2-inch shaft diameter, 0.81-inch working length, single spring type, carbon ring, Viton gasket, and 18-8 spring material. It is designated Type 21 and manufactured by FLOWSERVE under MPN 21-050-05.
Where to buy the FLOWSERVE 21-050-05 mechanical seal worldwide?
You can source the FLOWSERVE 21-050-05 mechanical seal through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to install a FLOWSERVE Type 21 mechanical seal?
To install a FLOWSERVE Type 21 mechanical seal, ensure the shaft and housing bore are clean and free of burrs. Lubricate the seal faces and gasket with a compatible fluid, then slide the seal onto the shaft. Follow the manufacturer's instructions for setting the working length and tightening the set screw.
Used in
Common applications for FLOWSERVEFLOWSERVE 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.
