Ball Check Valve Manufacturer

Check valves are mechanical valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. Fluid flow in the desired direction opens the valve, while backflow forces the valve closed. The mechanics of check valve operation are not complicated.

Ball Check Valves

Ball check valves contain a ball that sits freely above the seat, which has only one through hole. The ball has a slightly larger diameter than that of the through hole. When the pressure behind the seat exceeds that above the ball, liquid is allowed to flow through the valve. But once the pressure above the ball exceeds the pressure below the seat, the ball returns to rest in the seat, forming a seal that prevents backflow.

Flomatic® Corporation manufactures:

Ball Check Valve

208B
208B
Ball Check Valves
Size(s): 1 1/4 to 2 in. (32 to 50 mm)
208T
208T
Ball Check Valves
Size(s): 1 1/4 to 2 in. (32 to 50 mm)
208
208
Ball Check Valves
Size(s): 1 1/4 to 2 in. (32 to 50 mm)
408<sup>2</sup>
4082
Ball Check Valves
Size(s): 3 & 4 in. (80 & 100 mm)
408
408
Ball Check Valves
Size(s): 3 to 14 in. (80 to 350 mm)
508
508
Ball Check Valves
Size(s): 1 to 4 in. (25 to 100 mm)
408PRX / 408<sup>2</sup>PRX
408PRX / 4082PRX
Ball Check Valves
Size(s): 3 to 14 in. (80 to 350 mm)

Globe Style Silent Check Valve

402BT2/402BTR2
402BT2/402BTR2
Check Valves
Size(s): 2 to 16 in.
402S6/402S6R
402S6/402S6R
Check Valves
Size(s): 2 to 18 in. (150 to 450 mm)
402BT/402BTR
402BT/402BTR
Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)

Hydraulic Check Valve

C1001 / CF1001
C1001 / CF1001
Control Valves
Size(s): 1 1/4 to 36 in. (40 to 900 mm)

Unleaded Bronze Check Valve

100XLE
100XLE
Enviro Check® Valves
Size(s): 1 to 1-1/4 in. (25 to 32mm)
100ME
100ME
Enviro Check® Valves
Size(s): 1 to 1 1/2 in. (25 to 40 mm)
100DPE
100DPE
Enviro Check® Valves
Size(s): 1 X 1 1/4 in. (25 x 32 mm)
100E
100E
Enviro Check® Valves
Size(s): 3/4 to 1 1/4 in. (20 to 32 mm)
80XBE
80XBE
Enviro Check® Valves
Size(s): 1 to 2 in. (25 to 50 mm)
80ME
80ME
Enviro Check® Valves
Size(s): 1 to 2 in. (25 to 50 mm)
80HTE
80HTE
Enviro Check® Valves
Size(s): 1/4 to 4 in. (8 to 100 mm)
80CE
80CE
Enviro Check® Valves
Size(s): 1 to 2 in. (25 to 100 mm)
80BE
80BE
Enviro Check® Valves
Size(s): 3/4 to 4 in. (20 to 100 mm)
80AE
80AE
Enviro Check® Valves
Size(s): 3/4 to 4 in. (20 to 100 mm)
80E
80E
Enviro Check® - Certified Lead Free*
Size(s): 1/4 to 4 in. (8 to 100 mm)
80EVFD / 100EVFD
80EVFD / 100EVFD
VFD - Enviro Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 1 to 4 in. (25 to 100 mm)
100MEVFD
100MEVFD
Enviro Check® Valves
Size(s): 1 to 1 1/2 in. (25 to 40 mm)

Ductile Iron Check Valve

80DI8R-VFD
80DI8R-VFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 3 to 8 in. (80 to 200 mm) 8 round threads (short) are NOT API certified.
80MDI-VFD
80MDI-VFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 6 in. (50 to 150 mm)
82DP
82DP
Ductile Iron Check Valves
Size(s): 2 1/2 to 6 in. (65 to 150 mm)
82DI-VFD
82DI-VFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 3 to 8 in. (80 to 200 mm)
100MDI
100MDI
Ductile Iron Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
80MDI
80MDI
Ductile Iron Check Valves
Size(s): 3 to 5 in. (75 to 125 mm)
80DIVFD
80DIVFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 1 to 8 in. (25 to 200 mm)
80DI8R
80DI8R
Ductile Iron Check Valves
Size(s): 3 to 8 in. (80 to 200 mm) 8 round threads (short) are NOT API certified.
80DIX
80DIX
Ductile Iron Check Valves
Size(s): 3 to 12 in. (80 to 300 mm)
80DI Turbo
80DI Turbo
Ductile Iron Check Valves
Size(s): 10 in. (250 mm)
80DICLVFD/80DIMCLVFD
80DICLVFD/80DIMCLVFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 150 mm)
80DIB
80DIB
Ductile Iron Check Valves
Size(s): 1 to 4 in. (25 to 100 mm)
80DIA
80DIA
Ductile Iron Check Valves
Size(s): 1 to 4 in. (25 to 100 mm)
80DI
80DI
Ductile Iron Check Valves
Size(s): 1 to 8 in. (25 to 200 mm)
80MDW-VFD
80MDW-VFD
Carbon Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 3/8

Swing Check Valve

745LS (745 WITH LIMIT SWITCH (SPDT))
745LS (745 WITH LIMIT SWITCH (SPDT))
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
745BFPI Position Indicator & Backflush
745BFPI Position Indicator & Backflush
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
745PI (745 with Position Indicator)
745PI (745 with Position Indicator)
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
745BF (745 with Back Flush)
745BF (745 with Back Flush)
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
745
745
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
745ASC
745ASC
Swing Check Valves
Size(s): 3 to 24 in. (75 to 600 mm)
78
78
Swing Check Valves
Size(s): 2 1/2 to 10 in. (65 to 250 mm)
78A
78A
Swing Check Valves
Size(s): 3 to 14 in. (80 to 350 mm)
90CS/92CS
90CS/92CS
Swing Check Valves
Size(s): 2 to 30 in. (50 to 750 mm)
90LW/92LW
90LW/92LW
Swing Check Valves
Size(s): 2 to 30 in. (50 to 750 mm)
90LS/92LS
90LS/92LS
Swing Check Valves
Size(s): 2 to 30 in. (50 to 750 mm)
90/92
90/92
Swing Check Valves
Size(s): 2 to30 in. (50 to 750 mm)
93LW
93LW
Swing Check Valves
Size(s): 2 to 12 in. (50 to 300 mm)

Wafer Check Valve

888/888R
888/888R
Check Valves
Size(s): 2 to 10 in. (50 to 250 mm)
888S6/888S6R
888S6/888S6R
Check Valves
Size(s): 2 to 8 in. (50 to 200 mm)
812X
812X
Wafer Style Check Valves
Size(s): 1/2 to 8 in. (15 to 200 mm)
 SPLIT DISC®
SPLIT DISC®
Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)

Stainless Steel Check Valve

816FL
816FL
Ward Check Valves
Size(s): 1 to 2 in. (25 to 100 mm)
402S6/402S6R
402S6/402S6R
Check Valves
Size(s): 2 to 18 in. (150 to 450 mm)
812XT
812XT
Wafer Check Valves
Size(s): 1/2 to 8 in. (15 to 200 mm)
80/100SS
80/100SS
Stainless Steel Check Valves
Size(s): 1 to 2 in. (25 to 50 mm)
80SSA
80SSA
Stainless Steel Check Valves
Size(s): 1 to 2 in. (25 to 50 mm)
80SSB
80SSB
Stainless Steel Check Valves
Size(s): 1 to 2 in. (25 to 50 mm)
80SSC
80SSC
Stainless Steel Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
80SSXB
80SSXB
Stainless Steel Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
100MSS
100MSS
Stainless Steel Check Valves
Size(s): 1/2 to 1 1/4 in. (15 to 32 mm)
816
816
Ward Check Valves
Size(s): 1/4 to 2 in. (8 to 50 mm)
82S6VFD
82S6VFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 3
816FC
816FC
Ward Check Valves
Size(s): 1/4 to 2 in. (8 to 50 mm)
816HS
816HS
Ward Check Valves
Size(s): 1 in. (8 to 50 mm)
80S6
80S6
Stainless Steel Check Valves
Size(s): 1 to 10 in. (25 to 250 mm)
80S6CLVFD
80S6CLVFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 200 mm)
80S6VFD
80S6VFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 200 mm)
80MS6VFD
80MS6VFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 6 in.
80S6MCLVFD
80S6MCLVFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 200 mm)
100XLSS
100XLSS
Stainless Steel Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
888S6/888S6R
888S6/888S6R
Check Valves
Size(s): 2 to 8 in. (50 to 200 mm)
812X
812X
Wafer Style Check Valves
Size(s): 1/2 to 8 in. (15 to 200 mm)
CV80SS
CV80SS
Control Valves
Size(s): 3/8 to 1/2 in. (10 to 15 mm)

Plastic Check Valve

297D/290P
297D/290P
Plastic Check Valves
Size(s): 3/8 to 3/4
901
901
Plastic Check Valves
Size(s): 3/8 to 1
100MP
100MP
Plastic Check Valves
Size(s): 1 to 1 1/4

Auto Drain Valve

70 Auto Drain
70 Auto Drain
Auto Drain Valves
Size(s):

Ward Valve

Threaded Stainless Steel Strainers 16
Threaded Stainless Steel Strainers 16
Unleaded Strainer
Size(s): 1/4 to 2 in. (8 to 50 mm)
816HS
816HS
Ward Check Valves
Size(s): 1 in. (8 to 50 mm)
816FC
816FC
Ward Check Valves
Size(s): 1/4 to 2 in. (8 to 50 mm)
816FL
816FL
Ward Check Valves
Size(s): 1 to 2 in. (25 to 100 mm)
816
816
Ward Check Valves
Size(s): 1/4 to 2 in. (8 to 50 mm)

Carbon Steel Check Valve

80SL
80SL
Carbon Steel Check Valves
Size(s): 2” thru 8”
80MDW-VFD
80MDW-VFD
Carbon Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 3/8
80DIX
80DIX
Ductile Iron Check Valves
Size(s): 3 to 12 in. (80 to 300 mm)
100DPE
100DPE
Enviro Check® Valves
Size(s): 1 X 1 1/4 in. (25 x 32 mm)
100ME
100ME
Enviro Check® Valves
Size(s): 1 to 1 1/2 in. (25 to 40 mm)
100XLE
100XLE
Enviro Check® Valves
Size(s): 1 to 1-1/4 in. (25 to 32mm)
80DI
80DI
Ductile Iron Check Valves
Size(s): 1 to 8 in. (25 to 200 mm)
80DIA
80DIA
Ductile Iron Check Valves
Size(s): 1 to 4 in. (25 to 100 mm)
80DIB
80DIB
Ductile Iron Check Valves
Size(s): 1 to 4 in. (25 to 100 mm)
80DI8R-VFD
80DI8R-VFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 3 to 8 in. (80 to 200 mm) 8 round threads (short) are NOT API certified.
80DI Turbo
80DI Turbo
Ductile Iron Check Valves
Size(s): 10 in. (250 mm)
80ME
80ME
Enviro Check® Valves
Size(s): 1 to 2 in. (25 to 50 mm)
80DI8R
80DI8R
Ductile Iron Check Valves
Size(s): 3 to 8 in. (80 to 200 mm) 8 round threads (short) are NOT API certified.
80DIVFD
80DIVFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 1 to 8 in. (25 to 200 mm)
80MDI
80MDI
Ductile Iron Check Valves
Size(s): 3 to 5 in. (75 to 125 mm)
82DI-VFD
82DI-VFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 3 to 8 in. (80 to 200 mm)
297D/290P
297D/290P
Plastic Check Valves
Size(s): 3/8 to 3/4
80MDI-VFD
80MDI-VFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 6 in. (50 to 150 mm)
80DICLVFD/80DIMCLVFD
80DICLVFD/80DIMCLVFD
Ductile Iron Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 150 mm)
402S6/402S6R
402S6/402S6R
Check Valves
Size(s): 2 to 18 in. (150 to 450 mm)
745ASC
745ASC
Swing Check Valves
Size(s): 3 to 24 in. (75 to 600 mm)
508
508
Ball Check Valves
Size(s): 1 to 4 in. (25 to 100 mm)
408
408
Ball Check Valves
Size(s): 3 to 14 in. (80 to 350 mm)
408<sup>2</sup>
4082
Ball Check Valves
Size(s): 3 & 4 in. (80 & 100 mm)
208
208
Ball Check Valves
Size(s): 1 1/4 to 2 in. (32 to 50 mm)
208T
208T
Ball Check Valves
Size(s): 1 1/4 to 2 in. (32 to 50 mm)
100E
100E
Enviro Check® Valves
Size(s): 3/4 to 1 1/4 in. (20 to 32 mm)
402BT/402BTR
402BT/402BTR
Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
80XBE
80XBE
Enviro Check® Valves
Size(s): 1 to 2 in. (25 to 50 mm)
402BT2/402BTR2
402BT2/402BTR2
Check Valves
Size(s): 2 to 16 in.
80E
80E
Enviro Check® - Certified Lead Free*
Size(s): 1/4 to 4 in. (8 to 100 mm)
80AE
80AE
Enviro Check® Valves
Size(s): 3/4 to 4 in. (20 to 100 mm)
80BE
80BE
Enviro Check® Valves
Size(s): 3/4 to 4 in. (20 to 100 mm)
80CE
80CE
Enviro Check® Valves
Size(s): 1 to 2 in. (25 to 100 mm)
80HTE
80HTE
Enviro Check® Valves
Size(s): 1/4 to 4 in. (8 to 100 mm)
82DP
82DP
Ductile Iron Check Valves
Size(s): 2 1/2 to 6 in. (65 to 150 mm)
208B
208B
Ball Check Valves
Size(s): 1 1/4 to 2 in. (32 to 50 mm)
80S6CLVFD
80S6CLVFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 200 mm)
80SSC
80SSC
Stainless Steel Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
80SSXB
80SSXB
Stainless Steel Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
100MSS
100MSS
Stainless Steel Check Valves
Size(s): 1/2 to 1 1/4 in. (15 to 32 mm)
816
816
Ward Check Valves
Size(s): 1/4 to 2 in. (8 to 50 mm)
100MDI
100MDI
Ductile Iron Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
816FC
816FC
Ward Check Valves
Size(s): 1/4 to 2 in. (8 to 50 mm)
80SSB
80SSB
Stainless Steel Check Valves
Size(s): 1 to 2 in. (25 to 50 mm)
80S6
80S6
Stainless Steel Check Valves
Size(s): 1 to 10 in. (25 to 250 mm)
100XLSS
100XLSS
Stainless Steel Check Valves
Size(s): 1 to 1 1/4 in. (25 to 32 mm)
80S6VFD
80S6VFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 200 mm)
80MS6VFD
80MS6VFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 6 in.
80S6MCLVFD
80S6MCLVFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 to 8 in. (50 to 200 mm)
82S6VFD
82S6VFD
Stainless Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 3
100MP
100MP
Plastic Check Valves
Size(s): 1 to 1 1/4
901
901
Plastic Check Valves
Size(s): 3/8 to 1
816HS
816HS
Ward Check Valves
Size(s): 1 in. (8 to 50 mm)
745
745
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
816FL
816FL
Ward Check Valves
Size(s): 1 to 2 in. (25 to 100 mm)
80SSA
80SSA
Stainless Steel Check Valves
Size(s): 1 to 2 in. (25 to 50 mm)
745BF (745 with Back Flush)
745BF (745 with Back Flush)
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
745PI (745 with Position Indicator)
745PI (745 with Position Indicator)
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
745BFPI Position Indicator & Backflush
745BFPI Position Indicator & Backflush
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
80/100SS
80/100SS
Stainless Steel Check Valves
Size(s): 1 to 2 in. (25 to 50 mm)
812XT
812XT
Wafer Check Valves
Size(s): 1/2 to 8 in. (15 to 200 mm)
745LS (745 WITH LIMIT SWITCH (SPDT))
745LS (745 WITH LIMIT SWITCH (SPDT))
Swing Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
78A
78A
Swing Check Valves
Size(s): 3 to 14 in. (80 to 350 mm)
78
78
Swing Check Valves
Size(s): 2 1/2 to 10 in. (65 to 250 mm)
90/92
90/92
Swing Check Valves
Size(s): 2 to30 in. (50 to 750 mm)
90LS/92LS
90LS/92LS
Swing Check Valves
Size(s): 2 to 30 in. (50 to 750 mm)
90LW/92LW
90LW/92LW
Swing Check Valves
Size(s): 2 to 30 in. (50 to 750 mm)
90CS/92CS
90CS/92CS
Swing Check Valves
Size(s): 2 to 30 in. (50 to 750 mm)
93LW
93LW
Swing Check Valves
Size(s): 2 to 12 in. (50 to 300 mm)
C1001 / CF1001
C1001 / CF1001
Control Valves
Size(s): 1 1/4 to 36 in. (40 to 900 mm)
888/888R
888/888R
Check Valves
Size(s): 2 to 10 in. (50 to 250 mm)
888S6/888S6R
888S6/888S6R
Check Valves
Size(s): 2 to 8 in. (50 to 200 mm)
812X
812X
Wafer Style Check Valves
Size(s): 1/2 to 8 in. (15 to 200 mm)
 SPLIT DISC®
SPLIT DISC®
Check Valves
Size(s): 2 to 24 in. (50 to 600 mm)
CV80SS
CV80SS
Control Valves
Size(s): 3/8 to 1/2 in. (10 to 15 mm)
GF8080E
GF8080E
Dual Check Valve
Size(s): 1/2 to 1 in. (15 to 25 mm)
80EVFD / 100EVFD
80EVFD / 100EVFD
VFD - Enviro Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 1 to 4 in. (25 to 100 mm)
80SL
80SL
Carbon Steel Check Valves
Size(s): 2” thru 8”
80MDW-VFD
80MDW-VFD
Carbon Steel Check Valves - For use with Variable Flow Demand (VFD controlled pumps)
Size(s): 2 3/8
408PRX / 408<sup>2</sup>PRX
408PRX / 4082PRX
Ball Check Valves
Size(s): 3 to 14 in. (80 to 350 mm)
100MEVFD
100MEVFD
Enviro Check® Valves
Size(s): 1 to 1 1/2 in. (25 to 40 mm)
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