PERFORMANCE BULLETIN 107 – 428 and AV8 Disc Holder Material Change Stainless Steel

The Disc Holders used in the 4” AquaMatic valves series 428 and AV8 will be changing material from Aluminum Bronze to 303 Stainless Steel. The dimensional characteristics of the parts will remain the same and they can be used interchangeably. As a result, the Aluminum Bronze parts will be obsoleted and replaced with the Stainless parts in both valves and kits.

Current Disk holderNew Disk Holder
PN 1074587 Disc Holder, 428, Aluminum Bronze
Model 428-N
PN 1074590 Disc Holder, 428, Stainless
Model 428-NS
PN 1074588 Disc Holder, AV8, Aluminum Bronze
Model 428-NA
PN 1074589 Disc Holder, AV8, Stainless
Model 428-NAS