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
Stock Description Catalog Pg. Price
1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19538
395.45/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
395.45/Each
3/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/FPM Diaphragm
Item 19540
426.39/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
426.39/Each
1" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19543
525.24/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
525.24/Each
1-1/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/FPM Diaphragm
Item 19545
759.87/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
759.87/Each
1-1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19546
759.87/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
759.87/Each
2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19547
825.42/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
825.42/Each
1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19549
449.34/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
449.34/Each
3/4" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19550
477.97/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
477.97/Each
1" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19553
572.66/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
572.66/Each
1-1/4" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19554
901.77/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
901.77/Each
1-1/2" True Union CPVC Hayward® DAB Series Diaphragm Valve  w/PTFE Diaphragm
Item 19555
909.81/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
909.81/Each
2" True Union CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19556
944.48/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
944.48/Each
1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19571
387.43/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
387.43/Each
3/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19572
433.79/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
433.79/Each
1" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19573
542.14/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
542.14/Each
1-1/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19574
836.85/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
836.85/Each
1-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19575
836.85/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
836.85/Each
2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19577
974.45/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
974.45/Each
2-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19578
1420.41/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1420.41/Each
3" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM  Diaphragm
Item 19579
3453.73/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
3453.73/Each
4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/FPM Diaphragm
Item 19580
2925.98/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
2925.98/Each
1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19581
474.46/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
474.46/Each
3/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19582
525.24/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
525.24/Each
1" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19583
658.07/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
658.07/Each
1-1/4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19584
828.5/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
828.5/Each
1-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19585
974.04/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
974.04/Each
2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19586
1103.02/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
1103.02/Each
2-1/2" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19587
2008.91/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
2008.91/Each
3" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19588
2457.68/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
2457.68/Each
4" Flanged CPVC Hayward® DAB Series Diaphragm Valve w/PTFE Diaphragm
Item 19589
3483.26/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
Internet Only
3483.26/Each