BY Series Features and Options
  • Cast iron bodies with standard stainless steel disc and stem
  • 2" through 12" sizes (up to 24" upon request)
  • Lug and wafer style connections
  • EPDM, BUNA-N, Viton or TFE seat options
  • Designed to ANSI, API 609 and MSS-SP67 standards
  • ISO mounting pad for direct mount automation
  • Pneumatic or electric actuators
  • Customized three-way tee linkages for diverting or mixing applications
  • Factory assembled and tested
  • Large inventory for same day shipment on many models
  • Limit switches, modulating positioners, NAMUR solenoids and many other custom options
Unit of Measure
With 120VAC Electric Actuator
2" BY-*E-2-20-200-A-4-P1
2-1/2" BY-*E-2-25-200-A-4-P1
3" BY-*E-2-30-300-A-4-P1
4" BY-*E-2-40-400-A-4-P1
5" BY-*E-2-50-1000-A-4-P1
6" BY-*E-2-60-1000-A-4-P1
8" BY-*E-2-80-1500-A-4-P1
10" BY-*E-2-100-3800-A-4-P1
12" BY-*E-2-120-3800-A-4-P1
With Double Acting Pneumatic
2" BY-*E-2-20-63-DA-PN
2-1/2" BY-*E-2-25-63-DA-PN
3" BY-*E-2-30-63-DA-PN
4" BY-*E-2-40-75-DA-PN
5" BY-*E-2-50-85-DA-PN
6" BY-*E-2-60-85-DA-PN
8" BY-*E-2-80-100-DA-PN
10" BY-*E-2-100-125-DA-PN
12" BY-*E-2-120-160-DA-PN
With Spring Return Pneumatic
2" BY-*E-2-20-75-SR-PN
2-1/2" BY-*E-2-25-75-SR-PN
3" BY-*E-2-30-85-SR-PN
4" BY-*E-2-40-100-SR-PN
5" BY-*E-2-50-100-SR-PN
6" BY-*E-2-60-125-SR-PN
8" BY-*E-2-80-125-SR-PN
10" BY-*E-2-100-160-SR-PN
12" BY-*E-2-120-200-SR-PN
Part Number Note Use "W" for wafer connection or "L" for lug.

All assembly part numbers above indicate EPDM seats; for BUNA, change "E" to "N"; for Viton change "E" to "V"; for TFE change "E" to "T".