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Delchem Dual Flush Siphons

Delchem Dual Flush Siphons


The Delchem Dual Flush Siphon is suitable for use in low level and closed coupled WC cisterns and is available in 4 sizes,7½”, 8”, 9” & 9½. Pressing down on the lever lifts a plastic washer which raises the level of the water above the spill over point. At this point the water in the cistern will flow down through the tube by siphonic action into the toilet bowl until the siphon action is broken. The siphon can be set for three flush options by inserting the bung supplied into the top two hole (Full Flush), one bung into top hole (Medium Flush) or one bung into lower hole (Low Flush). All siphons come complete with siphon backnut/washers and low level coupling nut/seal as standard


  • Made of PVC
  • Can be Installed in Low Level & Closed Coupled WC Suites
  • Water Saving
  • Adjustable Flush Volumes
  • Low Level Coupling & Washer Supplied
Technical Data:  
Valve Material: PVC
Washer Material: PVC
Valve Outlet: 1½” BSP
Flush Volume Adjustment: Full, Medium & Low Flush Settings
Internal Overflow: 7½”, 8”, 9” & 9½”
Flush Volume: 9 / 7 / 6 Litres
Approvals: WRAS Approved