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Ball Valves
Get dependable flow control with our versatile ball valves. Designed for quick on/off operation and tight shutoff, these valves provide a simple, cost-effective solution for managing liquids and gases in a wide range of systems. Our selection includes brass ball valves, stainless steel ball valves, PVC ball valves, and high-pressure industrial ball valves, available in multiple sizes, connection types, and pressure ratings. Perfect for use in plumbing, HVAC, water treatment, chemical processing, and manufacturing, ball valves are built to perform in both commercial and industrial environments. With durable construction, easy operation, and trusted-brand quality, our ball valves deliver long service life, leak-free performance, and reliable flow control, making them a go-to choice for professionals and contractors.
Filters 11,675 Results
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The Dwyer - FSV15 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.24 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$927.35
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - AAV-1120 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 3/4 ", 9 Cv, 25 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 290 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$607.29
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV14-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 0.6 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,884.75
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV12-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 3/4 " NPT Female, 3.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 70 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$2,468.78
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV38-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1.7 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$2,034.14
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV516-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,901.21
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV14-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 0.6 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,599.49
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV104-MA is a Proportioning Valve featuring Low Cost, Electronically Controlled, 20:1, 2-Way, N.C, 1/8 " NPT Female, 0.12 Cv, 12 Vdc to 24 Vdc, 4 mA to 20 mA, SS, FKM, 40 psi, and Gas. It is rated for a temperature range of 82 °C (180 °F). Part of the PV100 Series. Sold individually.
$1,047.43
Should ship between 26 Dec and 02 Jan
Subject to factory lead times
The Dwyer - PV12-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 3/4 " NPT Female, 3.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 70 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,876.51
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - FSV14 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.068 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$927.35
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - PV34-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1 " NPT Female, 6.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$3,111.06
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1115C is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 1/2 ", 4.6 Cv, 26 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 230 psi, Liquid, Gas, Uni-Directional, and Compact Design. It is rated for a temperature range of 180 °C. Part of the AAV-1100C Series. Sold individually.
$405.16
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV38-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1.7 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,651.65
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1115 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 1/2 ", 4.8 Cv, 25 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 290 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$567.94
Should ship between 12 Dec and 19 Dec
Subject to factory lead times
The Dwyer - PV34-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1 " NPT Female, 6.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$2,625.25
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1015 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 1/2 ", 4.6 Cv, 25 psi to 150 psi Pilot Pressure, Bronze, PTFE, 290 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1000 Series. Sold individually.
$421.28
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - FSV12 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.033 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$927.35
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - PV101-MA is a Proportioning Valve featuring Low Cost, Electronically Controlled, 20:1, 2-Way, N.C, 1/8 " NPT Female, 0.002 Cv, 12 Vdc to 24 Vdc, 4 mA to 20 mA, SS, FKM, 200 psi, and Gas. It is rated for a temperature range of 82 °C (180 °F). Part of the PV100 Series. Sold individually.
$1,177.75
Should ship between 26 Dec and 02 Jan
Subject to factory lead times
The Dwyer - AAV-1050 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 2 ", 56.9 Cv, 45 psi to 150 psi Pilot Pressure, Bronze, PTFE, 160 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1000 Series. Sold individually.
$942.36
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1120B is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 3/4 ", 9 Cv, 55 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 230 psi, Liquid, Gas, and Bi-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$642.56
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1150 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 2 ", 59.3 Cv, 45 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 160 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$1,049.08
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - FSV11 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.009 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$1,007.89
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - PV516-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,616.88
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
1-1/2" two-piece stainless steel ball valve.
$252.06
Should ship between 21 Nov and 05 Dec
Subject to factory lead times
The Dwyer - FSV15 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.24 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$927.35
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - AAV-1120 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 3/4 ", 9 Cv, 25 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 290 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$607.29
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV14-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 0.6 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,884.75
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV12-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 3/4 " NPT Female, 3.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 70 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$2,468.78
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV38-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1.7 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$2,034.14
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV516-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,901.21
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV14-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 0.6 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,599.49
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV104-MA is a Proportioning Valve featuring Low Cost, Electronically Controlled, 20:1, 2-Way, N.C, 1/8 " NPT Female, 0.12 Cv, 12 Vdc to 24 Vdc, 4 mA to 20 mA, SS, FKM, 40 psi, and Gas. It is rated for a temperature range of 82 °C (180 °F). Part of the PV100 Series. Sold individually.
$1,047.43
Should ship between 26 Dec and 02 Jan
Subject to factory lead times
The Dwyer - PV12-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 3/4 " NPT Female, 3.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 70 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,876.51
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - FSV14 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.068 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$927.35
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - PV34-SS is a Proportioning Valve featuring Electronically Controlled, 20:1, 1 " NPT Female, 6.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, 316 SS, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$3,111.06
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1115C is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 1/2 ", 4.6 Cv, 26 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 230 psi, Liquid, Gas, Uni-Directional, and Compact Design. It is rated for a temperature range of 180 °C. Part of the AAV-1100C Series. Sold individually.
$405.16
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - PV38-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1.7 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,651.65
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1115 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 1/2 ", 4.8 Cv, 25 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 290 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$567.94
Should ship between 12 Dec and 19 Dec
Subject to factory lead times
The Dwyer - PV34-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1 " NPT Female, 6.5 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$2,625.25
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1015 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 1/2 ", 4.6 Cv, 25 psi to 150 psi Pilot Pressure, Bronze, PTFE, 290 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1000 Series. Sold individually.
$421.28
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - FSV12 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.033 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$927.35
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - PV101-MA is a Proportioning Valve featuring Low Cost, Electronically Controlled, 20:1, 2-Way, N.C, 1/8 " NPT Female, 0.002 Cv, 12 Vdc to 24 Vdc, 4 mA to 20 mA, SS, FKM, 200 psi, and Gas. It is rated for a temperature range of 82 °C (180 °F). Part of the PV100 Series. Sold individually.
$1,177.75
Should ship between 26 Dec and 02 Jan
Subject to factory lead times
The Dwyer - AAV-1050 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 2 ", 56.9 Cv, 45 psi to 150 psi Pilot Pressure, Bronze, PTFE, 160 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1000 Series. Sold individually.
$942.36
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1120B is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 3/4 ", 9 Cv, 55 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 230 psi, Liquid, Gas, and Bi-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$642.56
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - AAV-1150 is an Air-Actuated Valve featuring 2-Way, N.C, Pilot Operated, 2 ", 59.3 Cv, 45 psi to 150 psi Pilot Pressure, 316 SS, PTFE, 160 psi, Liquid, Gas, and Uni-Directional. It is rated for a temperature range of 180 °C. Part of the AAV-1100 Series. Sold individually.
$1,049.08
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
The Dwyer - FSV11 is a Proportioning Valve featuring Electrically Controlled, 100:1, 1/4 " Compression, 0.009 Cv, 12 Vdc to 30 Vdc, 0 to 5 Vdc, 4 mA to 20 mA, 316 SS, 416 SS, FKM, 500 psi, and Gas. It is rated for a temperature range of 54 °C (130 °F). Part of the FSV10 Series. Sold individually.
$1,007.89
Should ship between 28 Nov and 12 Dec
Subject to factory lead times
The Dwyer - PV516-B is a Proportioning Valve featuring Electronically Controlled, 20:1, 1/2 " NPT Female, 1 Cv, 12 Vdc to 24 Vdc, 1 Vdc to 5 Vdc, 4 mA to 20 mA, Brass, and 120 psi. It is rated for a temperature range of 121 °C (250 °F). Sold individually.
$1,616.88
Should ship between 21 Nov and 28 Nov
Subject to factory lead times
1-1/2" two-piece stainless steel ball valve.
$252.06
Should ship between 21 Nov and 05 Dec
Subject to factory lead times
FAQ
- A ball valve has a drilled ball that rotates a quarter turn between fully open and fully closed. The bore lines up with the pipe when open, blocks it when closed. They're cheap, quick to operate, and have very low pressure drop. The trade-off is that they're not built for throttling.
- Full port matches the pipe ID, so flow goes straight through with almost no pressure drop and you can run a pig through it. Standard port has a smaller bore, costs less, and has slightly more pressure drop. For most isolation duty the standard port is fine. Spec full port when pigging, when pressure drop matters, or when the spec sheet calls it out.
- 1-piece is welded shut, dirt cheap, and not repairable. When it leaks you throw it out. 2-piece has a screwed end cap so you can replace seats, but the body still has to come out of the line. 3-piece bolts together with end caps that stay flanged to the pipe, so you can swing the body out, rebuild it, and bolt it back without disturbing the piping. Most maintenance shops insist on 3-piece for anything they expect to rebuild.
- Throttling. Sitting a ball valve at half-open puts the edges of the bore right in the fluid path, and the seats get chewed up by erosion in months. Also avoid them in slurry service unless the design has cavity fillers, since solids pack into the body cavity and lock the ball.
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About NISCO Inc.
NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.