Key Features

• Cartridge Upgrade: Takes the industry-standard Pac-Seal Type 21 component seal and packages it into a convenient, pre-set cartridge format.

• Eliminates Measurement: Removes the need to measure working length or mark the shaft, which is the #1 cause of Type 21 failure.

• Universal Gland: Features a slotted gland plate designed to fit the bolt circles of most ANSI and DIN standard pumps originally fitted with component seals.

• Shaft Protection: Unlike the standard Type 21 where the drive band bites into the shaft, this cartridge version has an internal sleeve, protecting the pump shaft from damage.

• Improved Concentricity: The cartridge gland ensures the stationary seat is perfectly square to the shaft, reducing uneven wear.

Product Specifications

Workshop

This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.

Product Research, Development and Testing

Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.

Industry Solutions

FAQs about Metal Bellows Seals for High Temperature Pumps

Q: Is this more expensive than the component seal?

A: Yes, the initial purchase price is higher due to the metal gland and sleeve. However, the total cost of ownership is lower because it installs faster and lasts longer due to better alignment.