Ball Valve

Ball Valve

Ball Valve Types And Mechanism

A ball valve is a valve with a spherical disc, the part of the valve which controls the flow through it. The sphere has a hole, or port, through the middle so that when the port is in line with both ends of the valve, flow will occur. When the valve is closed, the hole is perpendicular to the ends of the valve, and flow is blocked. The handle or lever will be in line with the port position letting you "see" the valve's position.

Ball valves are durable and usually work to achieve perfect shutoff even after years of disuse. They are therefore an excellent choice for shutoff applications (and are often preferred to globe valves and gate valves for this purpose). They do not offer the fine control that may be necessary in throttling applications but are sometimes used for this purpose.

Ball valves are used extensively in industry because they are very versatile, supporting pressures up to 700 bars and temperatures up to 200°C. Sizes typically range from 0.5 cm to 30 cm. They are easy to repair and operate.

The generalized trademark ball-o-fix is occasionally used after the original UK market leader.

Types of ball valve

There are five general body styles of ball valves: single body, three piece body, split body, top entry, and welded. The difference is based on how the pieces of the valve--especially the casing that contains the ball itself--are manufactured and assembled. The valve operation is the same in each case.

In addition, there are different styles related to the bore of the ball mechanism itself:

A full port or more commonly known full bore ball valve has an over-sized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. Flow is unrestricted but the valve is larger and more expensive so this is only used where free flow is required, for example in pipelines which require pigging.

In reduced port or more commonly known reduced bore ball valves, flow through the valve is one pipe size smaller than the valve's pipe size resulting in flow area being smaller than pipe. As the flow discharge remains constant and is equal to area of flow (A) times velocity (V), A1V1 = A2V2 the velocity increases with reduced area of flow.

A V port ball valve has either a 'v' shaped ball or a 'v' shaped seat. This allows the orifice to be opened and closed in a more controlled manner with a closer to linear flow characteristic. When the valve is in the closed position and opening is commenced the small end of the 'v' is opened first allowing stable flow control during this stage. This type of design requires a generally more robust construction due to higher velocities of the fluids, which might damage a standard valve.

About the Author

A ball valve is a valve with a spherical disc, the part of the valve which controls the flow through it. The sphere has a hole, or port, through the middle so that when the port is in line with both ends of the valve, flow will occur. Valve Manufacturer India

KIT,SEAL TIGHT BALL VALVE $52.99 KIT,SEAL TIGHT BALL VALVE

Zurn Pexqest .50in. Poly Ball Valve QPBV3XPPK1 $26.07 Ball valve. Poly.50

Adjustable Ball Valve Lockouts $42.9 Versatile and easy to use ball valve lockouts. Adjustable Ball Valve Lockout consists of two halves that encompass ball valve handle to secure from inadvertent activation (padlocks not included) Valve lockouts are constructed of ultra tough polypropylene Small valve control lockout (L1364) locks out pipes 1/2" to 2-1/2" in diameter Large valve control lockout (L1365) locks out pipes 2" to 8" in diameter Small lockout lockout devices can also be used to lock valves open on pipes from 1/2" to 1-1/4" in diameter Ball valve lockouts are available in Red, Yellow, Blue, and Green

Universal Ball Valve Lockouts $31.9 Valve lockouts lock out ball valves in any position . Lockout any length round, square, or flat, quarter-turn valves with handles up to 1-1/4" thick by 1-5/8" wide Strong, yet lightweight, the ball valve lockout tolerates extreme temperature changes; it won't warp or crack These Universal Ball Valve Lockouts are made of durable, super tough nylon and steel to resist solvents, chemicals, and abrasion This ball valve lockout device allows an individual to lock valves in the on, off, and throttle positions Attach a second valve lockout arm (sold separately) and lock out 3, 4, and 5 way valves Available in 4 sizes

Ball Valve - 5/8 in. $4.99 Use this handy ball valve for low-pressure applications like canister filters, pump return lines, protein skimmers, and more. Positive barb retention and connection. Easy adjust valve control.

Ball Valve - 1-1/2 Inch $24.99 1-1/2" True Union Ball ValvePerfect for installing / replacing a new pool pump or filter system!Our 1-1/2" True Union Ball Valve makes draining, winterizing (or simply isolating your systems components) quick & easy. This Valve ensures complete shutoff and extremely smooth handle operation. And the "anti-block" feature allows unlimited tightening of unions without affecting handle operation. Just connect this Union Ball Valve to your pool plumbing and never cut through PVC again!Made from injection-molded PVC with polyethylene seats & EPDM "O"-ringsLeak-proof, 150 PSI

Ball Valve - 2 Inch $34.99 2" True Union Ball ValvePerfect for installing / replacing a new pool pump or filter system!Our 2" True Union Ball Valve makes draining, winterizing (or simply isolating your systems components) quick & easy. This Valve ensures complete shutoff and extremely smooth handle operation. And the "anti-block" feature allows unlimited tightening of unions without affecting handle operation. Just connect this Union Ball Valve to your pool plumbing and never cut through PVC again!Made from injection-molded PVC with polyethylene seats & EPDM "O"-ringsLeak-proof, 150 PSI

Zurn Pexqest .75in. Low Lead Levered Ball Valve QQBV44GXPK1 $32.09 Ball valve. Low lead. With lever.75

Zurn Pexqest .50in. Low Lead Levered Ball Valve QQBV33GXPK1 $28.98 Ball valve. Low lead. With lever.50

Ball Valve Lockout $36.9 These valve lockouts lock valves in closed position. The Ball Valve Lockout helps to insure that valves are closed depending on their use at your site The lock handle is sandwiched between two durable plastic pieces A padlock can then be inserted between the two pieces and the valve is locked closed The lockout is available in nylon or steel in two sizes to fit valves from 1/4" to 3"

Ball Valve - 1/2 in. $4.99 Aquatic Micro Ball Valves is excellent for low pressure installations with standard aquarium hose of 1/2 in. Positive barb connection and retention.

Campbell Hausfeld MP3217 1/4-in Full Port Ball Valve $5.99 1/4-in Full Port Ball Valve - MP3217

Zurn Pexqest 1in. Low Lead Levered Ball Valve QQBV55GXPK1 $37 Ball valve. Low lead. With lever. 1

Ball Valve - 3/4 in. $6.99 Barbed Aquatic Ball Valves are for regulating water flow through standard hose used for devices such as canister filters, pump return lines, and protein skimmers.

Dixon Valve 238BBV100 1 In Brass Ball Valve $98.46 1 Brass Ball Valve. Connection Type: Female/Female. Inlet Size: 1 (NPT). Inlet Type: Female Thread. Outlet Size: 1 (NPT). Outlet Type: Female Thread. Operating Pressure (per Fluid): 600 psi (wog). Body Material: Brass. Ball Material: Brass. Stem Material: Brass. Handle Material: Steel. Seat Material: TFE. Seal Material: Teflon. Opening Type: Lever. Designated Fluid: Air Water Oil Gas. Type: Ball.

Hearth 810 Ball Valve $24.47 Quarter turn ball valve1/2in Flare FittingsCompatible with Connector Hoses. Size: 2quot x 1quot x 1quot. Design is stylish and innovative. Satisfaction Ensured.

Color-Coded Ball Valve Lockouts $44.5 These valve lockouts meet OSHA requirements to ensure ball valves are locked securely and effectively . Use these ball valve lockouts on 1/4-turn valves to prevent tampering The polypropylene material of the lockout devices resists chemicals, solvents, cracking and rust Easy 1-2-3 installation: 1. Place the ball valve lockout securely over valve 2. Slide the locking mechanism firmly into place 3. Secure with padlock (not included) Model L0653 for valves that measure between 3/8" and 1-1/4" locks valves in both the open and closed positions Choose from 4 ANSI colors based on the contents of valve: Red - Fire fighting material Yellow - Inherently hazardous materials Blue - Inherently low hazard gases Green - Inherently low hazard liquids

Dixon Valve 1 In Brass Ball Valve. Each $35.54 Manufacturer: Dixon Valve. Each. Connection Type = Female/Female Inlet Size = 1 in (NPT) Inlet Type = Female Thread Outlet Size = 1 in (NPT) Outlet Type = Female Thread Operating Pressure (per Fluid) = 600 psi (wog) Body Material = Brass Ball Material =

Dixon Valve 2 In Brass Ball Valve. Each $95.54 Manufacturer: Dixon Valve. Each. Connection Type = Female/Female Inlet Size = 1 1/2 in (NPT) Inlet Type = Female Thread Outlet Size = 1 1/2 in (NPT) Outlet Type = Female Thread Operating Pressure (per Fluid) = 600 psi (wog) Body Material = Brass Ball Mat

Hearth 8105X Ball Valve 5 Pack $69.03 Quarter turn ball valve. 1/2 Flare Fittings. Compatible with Connector Hoses. Dimensions: 2 x 1 x 1 .

Brady® One-Piece Ball Valve Lock-Outs $38.69 One-piece ball valve lock-outs fit all major brand ball valves. Installs easily in seconds. Painted, one-piece ball valve lock-outs design is easy to use - slip over valve handle, position arm extension against pipe, and insert padlock, sold separately. Lock out valve handles 1/4" to 3" using padlocks with 9/32" or 3/8" shackle diameters. Wedges to prevent handle movement. Available in different valve sizes.

Watts Watts 1 2cfx1 2cf Ball Valve P-564 $4.32 1/2cfx1/2cf ball valve This valve is the same as the crimp X crimp full port valve, but it includes a waste drain for draining with the valve in the closed position 1/2 barb x 1/2 barb ball valve Brand #: Watts P-564 UPC: 098268299175 Keywords: ball valve in line full port w waste drain

Watts Watts 3 4cfx3 4cf Ball Valve P-764 $7.17 3/4cfx3/4cf ball valve This valve is the same as the crimp X crimp full port valve, but it includes a waste drain for draining with the valve in the closed position 3/4 barb x 3/4 barb ball valve Brand #: Watts P-764 UPC: 098268299823 Keywords: ball valve in line full port w waste drain

Ball Valve - FPT x FPT - 1 in. x 1 in. $15.99 Ball valve FPT x FPT - 1 in. x 1 in.

Ball Valve - FPT x FPT - 1/2 in. x 1/2 in. $11.99 Ball valve - FPT x FPT 1/2 in. x 1/2 in.

Ball Valve - Slip x Slip - 1/2 in. x 1/2 in. $6.99 Half inch x half inch ball valve Slip x Slip

Ball Valve - Slip x Slip - 3/4 in. x 3/4 in. $12.99 Replacement/Plumbing part: Ball valve - slip x slip 3/4 in.

Ball Valve - Slip x Slip - 1 in. x 1 in. $16.99 Ball valve - Slip x Slip - 1 in. x 1 in.

Perko / Perko 2-1/2" Seacock Ball Valve Bronze / 0805010PLB $443.13 Perko - Perko 2-1/2" Seacock Ball Valve Bronze - 0805010PLB

Lifegard Aquatics ARP270509 1 in. Ball Valve Threaded $27.82 Lifegard Aquatics Ball Valve Threaded. Water flow control valve with 1 FPT on both ends. Always use Teflon Tape whenever making any kind of threaded plumbing connection. Dimensions: 1 .

Hearth 81010X Ball Valve 10 Pack $154.91 Quarter turn ball valve. 1/2 Flare Fittings. Compatible with Connector Hoses. 10x per Order. Dimensions: 2 x 1 x 1 .

Perko 21/2 Inch Seacock Ball Valve Bronze $674.27 Perko 21/2 Seacock Ball Valve BronzeThese valve bodies are offered to meet the needs of applications that require extra long scoop or flush type thruhulls.Cast Bronze.Technical Information:. Flange Diameter Inches: 71/4 . Overall Height Inches: 71/2 . Pipe Size Inches: 21/2 . Model Number: 0805010PLB. Ship Weight: 19.6 lbs.Overall height is measured from the top of the hose adapter to the bottomof the flange.. Product : PERKO 21/2 SEACOCK BALL VALVE BRONZE. Manufacturer : PERKO. Manufacturer Part No : 0805010PLB. UPC : 085226679674

Dixon Valve 238BBV50 12 In Brass Ball Valve $52.65 Connection Type: Female/Female. Inlet Size: 1/2 in (NPT). Inlet Type: Female Thread. Outlet Size: 1/2 in (NPT). Outlet Type: Female Thread. Operating Pressure (per Fluid): 600 psi (wog). Body Material: Brass. Ball Material: Brass. Stem Material: Brass. Handle Material: Steel. Seat Material: TFE. Seal Material: Teflon. Opening Type: Lever. Designated Fluid: Air Water Oil Gas. Type: Ball.

Dixon Valve 238BBV25 14 In Brass Ball Valve $52.65 Connection Type: Female/Female. Inlet Size: 1/4 (NPT). Inlet Type: Female Thread. Outlet Size: 1/4 (NPT). Outlet Type: Female Thread. Operating Pressure (per Fluid): 600 psi (wog). Body Material: Brass. Ball Material: Brass. Stem Material: Brass. Handle Material: Steel. Seat Material: TFE. Seal Material: Teflon. Opening Type: Lever. Designated Fluid: Air Water Oil Gas. Type: Ball.

Ldr .75in. IPS Gas Ball Valve 0201504 $26.64 Gas ball valve. Brass construction. Two piece body. Hard chrome plated forged brass ball. For use with natural manufactured mixed liquefied petroleum and LP gas and air mixtures.75 IPS. Length: 2.5. Width: 2.5. Height: 2.5

Watts Watts 1 2cfx1 2cf Ball Valve LF P-564 $5.52 1/2cfx1/2cf ball valve This valve is the same as the crimp X crimp full port valve, but it includes a waste drain for draining with the valve in the closed position Manufactured to include no more than 0.25% weighted average lead content on wetted surfaces 1/2 barb x 1/2 barb ball valve Brand #: Watts LF P-564 UPC: 098268497496 Keywords: ball valve in line full port low lead w waste drain

Watts Watts 3 4cfx3 4cf Ball Valve LF P-764 $9.21 3/4cfx3/4cf ball valve This valve is the same as the crimp X crimp full port valve, but it includes a waste drain for draining with the valve in the closed position Manufactured to include no more than 0.25% weighted average lead content on wetted surfaces 3/4 barb x 3/4 barb ball valve Brand #: Watts LF P-764 UPC: 098268497588 Keywords: ball valve in line full port low lead w waste drain

Utility Ball Valve - 2 in. $53.99 PVC Plumbing Parts for Aquarium and Pond Applications.