Type SB2/Type SB2A

The Safeseal Type SB2/Type SB2A is a dual-cartridge seal. Its double-balanced design ensures the reliability and longevity of the seal in the most demanding conditions. The Type SB2/Type SB2A seal is ideal for use with environmentally hazardous and abrasive fluids, most often used in pumps in pulp mills, minerals processing and other slurry duties up to 40% solids by weight and a solids hardness of 8 Mohs. The Type SB2/Type SB2A seal is widely used with other process equipment including agitators.

Several variants of the design available for different services:

• Type SB2 — designed for DIN standard dimensions
• Type SB2A — designed for ANSI standard dimensions
• Type SB2A-PR — designed for ANSI standard dimensions, including integrated pumping device
• Type SB2B — designed for big bore dimensions
• Type SB2B-PR — designed for big bore back plate dimensions
• Type SB2S — designed for special dimensions, including metric sizes
• Type SB2S-PR — designed for special dimensions, including integrated pumping device
• Type SB2 USP/Type SB2A USP – Add Upstream Pumping seal face technology to nearly eliminate water consumption, improve reliability and decrease power requirements

Adding Upstream Pumping seal face technology extends the life of the seal by combating severe-service conditions, including high-heat generation, low-lubricity and intermittent dry running conditions. By eliminating the need for a flush, USP technology nearly eliminates water consumption and decreases power usage. For more information on our Upstream Pumping technology, visit the web page.