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Service Manuals

Reduced Pressure Detector Assemblies
Wilkins 375ADA 4-10
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Wilkins 375DA 2 1/2-3
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Wilkins 475DA 4-10
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Wilkins 475DAV 4-10
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Wilkins 975 RPDA
This is a reduced pressure detector assembly. Production began in 1993 and was discontinued in 2004. The main valve utilizes an assembly similar to the 975 design. The bypass unit uses either a 3/4" 975 or 975XL. Check the tag to be sure which model you have.