Hayward® Diaphragm Valves

Diaphragm valves are engineered to provide superior handling of difficult media such as corrosive fluids, abrasives, and slurries. They can also be used for high purity and sanitary applications. The valve controls flow by varying the space between a stationary weir and a moveable flexible diaphragm. By compressing the diaphragm against the weir, all flow is shut off. Other diaphragms and materials are available; contact us for a quote.

  • CPVC body
  • PTFE or FPM diaphragm
  • Wetted components are the lower half of the valve body & the diaphragm
  • Large, sure-grip handwheel makes it easy to open or close the valve
  • The beacon-type indicator provides a highly visible position indication
  • Stroke adjustment allows precise "tweaking" of diaphragm movement for exact flow control
  • Pressure rating: 150 psi @ 70°F, non-shock
  • Temperature rating: 190°F
Item # Description Catalog Pg. Price Add to Cart
1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19538
483.03/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
483.03/Each
3/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/FPM Diaphragm
Item 19540
520.85/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
520.85/Each
1" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19543
641.59/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
641.59/Each
1-1/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/FPM Diaphragm
Item 19545
928.17/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
928.17/Each
1-1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19546
928.17/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
928.17/Each
2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19547
1008.17/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1008.17/Each
1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19549
548.85/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
548.85/Each
3/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19550
583.82/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
583.82/Each
1" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19553
699.52/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
699.52/Each
1-1/4" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19554
1101.48/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1101.48/Each
1-1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19555
1111.29/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1111.29/Each
2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19556
1153.63/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1153.63/Each
1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19571
473.22/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
473.22/Each
3/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19572
529.92/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
529.92/Each
1" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19573
662.22/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
662.22/Each
1-1/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19574
1022.17/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1022.17/Each
1-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19575
1022.17/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1022.17/Each
2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19577
1190.12/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1190.12/Each
2-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19578
1734.95/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1734.95/Each
3" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM  Diaphragm
Item 19579
4258.49/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
4258.49/Each
4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19580
3573.82/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
3573.82/Each
1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19581
579.52/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
579.52/Each
3/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19582
641.59/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
641.59/Each
1" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19583
803.87/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
803.87/Each
1-1/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19584
1011.93/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1011.93/Each
1-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19585
1189.7/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1189.7/Each
2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19586
1347.2/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1347.2/Each
2-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19587
2453.77/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
2453.77/Each
3" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19588
3001.77/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
3001.77/Each
4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19589
4254.39/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
4254.39/Each