Diaphragm valve can be replaced with piping. Please refer to the following for the replacement procedure.
Instruction Manual;
Replacement Procedure of Diaphragm for 400 Model Series:B71-31-03E-2
Weir Type Manually Operated DiaphragmValve:B71-31-08E-1, B71-31-07E-2
Pneumatically Operated On-Off Diaphragm Valve, Bioclean Valve:B71-33-05E-9