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Pump Matrix
Husky 1590 Aluminum and Stainless Steel Pumps, Series A
Your Model No. is marked on the pump’s serial plate. To determine the Model No. of your pump from the following
matrix, select the six digits which describe your pump, working from left to right. The first digit is always D,
designating Husky diaphragm pumps. The remaining five digits define the materials of construction. For example, a
pump with an aluminum air motor, aluminum fluid section, polypropylene seats, balls, and diaphragms
is Model No. D B 3 9 1 1. To order replacement parts, refer to the part lists on pages 24–25. The digits in the
matrix do not correspond to the ref. nos. in the parts drawing and lists.
Diaphragm
Pump Air Motor Fluid Section – Seats Balls Diaphragms
232502* aluminum aluminum – Hytrel acetal Hytrel
D (for all pumps) B (standard) 1 (not used) – 1 (not used) 1 ( ) 1 ( )
C (remote) 2 (not used) – 2 (not used) 2 (acetal) 2 (not used)
3 (aluminum) – 3 (316 sst) 3 (not used) 3 (not used)
4 (sst) – 4 (17–4 PH sst) 4 (440C sst) 4 (not used)
5 (not used) – 5 (Hytrel) 5 (Hytrel) 5 (Hytrel)
C (aluminum
BSPT)
– 6 (Santoprene) 6 (Santoprene) 6 (Santoprene)
D (sst BSPT) – 7 (not used) 7 (not used) 7 (not used)
– 8 (Viton) 8 (Viton) 8 (Viton)
– 9 (polypropylene) 9 (not used) 9 (not used)
– A (Kynar) A (not used) A (not used)
– G (Geolast) G (Geolast) G (Geolast)
* 232502, Aluminum 1590 Pump, Series A
Model No. 232502 is a private-label aluminum 1590 pump. Other than the label, it is the same
as Model No. DB3525.
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