Spotlight on Innovation: LFY2 Series – 3-way Pinch Solenoid Valves

Published On: July 4th, 2021
LFY2 Series - 3-way pinch solenoid valve

The LFY2 Series solenoid valve offered by DenisDePloeg is a groundbreaking internal pinch-tube style valve featuring ultra-low internal volume in a maintenance free package. Available as a 3-way design, this chemically inert valve is equipped with industry standard ports and contains both a normally open and normally closed flow path that are operated simultaneously. Additionally, it offers zero dead volume and a fully swept flow path to minimize sample volume and residual carryover during operation.

Designed using an innovative ‘Y’ shaped elastomeric tube and unique actuating mechanism, a controlled pinch seals off the normally open or closed ports as the solenoid actuates. This precise pinch preserves the purity of the fluid and is tolerant of contamination in the flow stream providing consistent reliable performance throughout its rated life. The unique design of the LFY2 combines the best features of inert isolation valves with the flow path of a pinch valve while eliminating the need for maintenance.

The LFY2 Series solenoid valve is 100% functionally tested for performance and designed with materials that will ensure consistent, long-term operation. Performance characteristics can be further optimized to meet specific application requirements.

LFY2 Series - Exceptionally low internal volume


  • Chemically Inert
  • Low Internal Volume: Less than 10 μL
  • Maintenance Free Design
  • Zero Dead Volume
  • 5 Million Cycle Life
  • Lower Power Consumption
  • 1⁄4-28 or 062 MINSTAC Ports


  • Gene Sequencing
  • Flow Cytometry
  • Scientific Instruments
  • Drug Discovery
  • In Vitro Diagnostics