The Walchem EWN-B31VEUR pump is now obsolete and the replacement model is the EWP-265EVE08N-USR pump. For reference, the obsolete EWN-B31VEUR specifications were:
Series: EWN-R
Max Output: 3.2 GPH
Max Pressure: 30 PSI
Pump Head: PVC
Valve Seats: EPDM
O-Rings: EPDM
Valve Balls: Ceramic
Diaphragm: PTFE (+ EPDM Backer)
Gaskets: PTFE
Tubing: ½″ OD PE
Electrical: 115V US Plug
Control Module: Manual Control, Pulse & Analog Input, Stop/Pre-Stop Input
