Quadax ® – buttweld type

The buttweld type is mainly used in overground pipeline construction. This version without flange connections significantly reduces the risk of undetected leaks.

Key data:
Butterfly valve: Bare shaft
Pressure range: PN 0-160 bar
Nominal diameter: DN 80-1800 mm
Connection: welding ends




Housing materials: Steel, stainless steel,
Special materials: (Duplex, Inconel, Bronze)

Seat Materials: Inconell, Others on request

Sealing materials: Graphit / stainless steel, Inconell, stainless steel, PTFE

Technical data

Ports buttweld ends
Function NC / NO / DA depending upon actuator
Pressure range body pressure 0 to 160 bar
△p standard shaft 52 bar in both directions
△p optional shaft 100 bar in both directions
Kv value m³/h see table
Leakage rate 1 DIN 3230
A DIN EN 12266
BS 6364
Fire safe
Flow direction A → B as marked
Switching time s DN/100
Process- and outside temperature standard -10 °C to +450 °C
with special materials -270 °C to +800 °C
Limit switches option
Approvals PED / Fire safe / BAM / TA Luft / ATEX ect.
Weight kg see table
additional equipment upon request

For detailed product information, the technical data sheet is available for download.