Watts Model 990RPDA

The Watts 990RPDA is a reduced pressure detector assembly ( RPDA ).  It was available in 4” – 8” sizes and was in production from 1993-1997. The body was made of ductile iron with a fused epoxy coating.  The 990RPDA utilized the 3/4” 009 or 009M2 for the bypass assembly.

Parts Breakdown

PDF    Series 990RPDA Parts Breakdown


Repair Procedures

Not Currently Available

Repair Videos

990RPDA Repair Video

Repair Guy Article

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Spec Sheet


Not Currently Available



Category: Watts
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