The BQFD™ (Bellows Quench Flush Drain) range of single cartridge mechanical seals uses many of the same modular parts as a BSIV™ but has the added features of Quench and Drain, making it usable in more diverse applications.

• Cartridge design for reliable installation
• Hydraulically balanced seal face loading, which maximizes seal life and allows for vacuum service capability
• The BQFD™ range has quench flush and drain ports with optional restriction bush (BQFD-R)
• BQFD™ sizes available from 1.000″ to 5.000″ (24mm – 125mm)