BUL: 3-way unit valve, PN 16 
 
How energy efficiency is improved
Linear mixture and no loss through leakage in the control passage for energy-efficient regulation
 
Features
• Flat-sealing standard version or version with clamping-ring screw fitting for pipe Ø 15 mm with DN 10
• Valve with male thread as per DIN EN ISO 228-1, class B
• Special model for fan coil units with cast-on by-pass T-piece
• Control passage A–AB is closed when the spindle is moved in
• Can be used as a control valve and, thanks to its tight-sealing third passage, as a distribution valve
• Nickel-plated valve body made of cast brass
• Plug with EPDM soft seal for control passage and mixing passage
• Stainless-steel spindle
• Stuffing box with double O-ring seal