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3-Way Actuated Ball Valves

PVC & CPVC Diverter or Sampling Valves -- Using compressed air or hydraulic power for actuation

3-way actuated Ball Valves in PVC and CPVC for acid and other aggressive chemicals, shown here with automatic spring return

Actuator Features:

Valve at right is shown with TABVS Air x Spring automatic fail-safe actuator. Air is used to actuate the valve; when air is relieved, an internal spring automatically returns the valve to its standard position. With optional Limit Stops, the valve can be set to open or close to any partial position.

Valve Features:

3-way air actuated ball valve

Photo shows Air x Air valve which must be actuated one way or the other.

Valve Design:

The ABV- Series is a scotchyoke type design. The ABR- and ABM- Series are rack & pinion type design. The actuator works directly on the ball valve shaft, ball, and bottom trunnion.

The bottom trunnion design element is accomplished via a circular thermoplastic sleeve fitted into the bottom hole of the ball. This sleeve locks the ball into the base of the valve, much like the typical trunnion found in the True Blue 2-way valve. After over two decades of proven design superiority, Plast-O-Matic remains the only industrial thermoplastic ball valve manufacturer to employ the trunnion principle. "Blocking" type ball valves, no matter how well designed, will result in uneven strain on the ball and shaft as they are tightened and especially during flow & pressure conditions -- a misaligned ball eventually causes leaks. The trunnion design, on the other hand, assures a perfectly aligned ball.

Materials of Construction:

Ball valves are available in Geon® PVC and Corzan® CPVC, withPTFE seats. A 3-hole ball design is standard and prevents amomentary no-flow ("dead head") condition by briefly allowingflow from two ports. If liquids cannot be mixed, please consultfactory for 3-way air actuated isolation valve. Seats areavailable in EPDM or Viton®. For complete specifications on the3-way ball element, please refer to Series TMBV.Actuator is constructed of corrosion resistant thermoplastics.Seals are Buna-N. For optional materials, please consult factory.

Manual Override:

All 3-way Air x Air models have direct override to the ball valve shaft. Series TABVS (Air x Spring 1/2", 3/4", and 1") requires simple loosening of the spring prior to manual override. Series TABRS (Air x Spring 1-1/2" and 2") should be specified as TABMS if manual override is critical to the application.

Temperature and Pressure:

Pressure rating for both PVC and CPVC is 175 PSI at 75° F (24° C). Maximum temperature for PVC is 140° F (60° C); maximum temperature for CPVC is 180° F (82° C).


Air x Air models require a 4-way air solenoid valve; Air x Spring models require a 3-way air solenoid to control actuation. Compressed air should be filtered and lubricated.


Valve Sizes         1/2"     3/4"      1"Cv Factors:         4.0      8.0       13.0Torque, in-lbs:	    25       35        45Air x AirPSI Required:       20-50    20-50     20-50Air x SpringPSI Required:       50-80    50-80     50-80 Valve Sizes         1-1/2"   2"Cv Factors:         38.0     39.0 Torque, in-lbs:     70       70Air x AirPSI Required:       30-50    30-50Air x SpringPSI Required:       60-80    60-80Tested cycle life:  1,000,000+ all sizes         

Dimensions & Ordering Information:

dimensional drawing of series TABV Actuated 3-way ball valves

Valve Size1/2" 3/4"1"1˝"2"
Air x Air Part #TABVA050-TABVA075-TABVA100-TABRA150-TABRA200-
A5.757.37.3see abovesee above
H2.82.82.8see abovesee above
IMPORTANT MUST READ: Model numbers listed above must be completed (in this order) with seal material, "V" for Viton or "EP" for EPDM; followed by connection type, "T" for threaded or "S" for socket; followed by a dash; followed by the valve body material, "PV" for Geon PVC or "CP" for Corzan CPVC. For example, a 1/2" threaded union Valve in PVC with Viton would be TABVA050VT-PV. For Air x Spring, simply change TABVA to TABVS or TABRA to TABRS. If TABRS with manual override is required, change part number to TABMS. Manual override is standard on all others. Note that overall height of TABMS is 14.8".

ABR/ABV Air Consumption Table
Actuator SizeAir Pressure @ ActuatorCFM* @ 1 cycle/hr/FT³/min.
To obtain CFM required from compressor, multiply the chart CFM value times the number of required actuator cycles per hour. (1 cycle = 1 open, 1 close)
Example: For a 1.6 actuator using 50 PSI air pressure, with 12 cycles per hour required: Required CFM = .000357 x 12 = .004284 CFM.
*CFM is the cubic feet per minute of free air.

CAD Drawing:

If you need a non-CAD drawing of Series TABV, you may simply right-click the dimensional drawing above, and "save as" in your desired directory.

If you would like a .dwg file, please click on the CAD link icon below but please be aware that you will have to download the actuator (ABV or ABR) and the valve (TMBV) separately.

Please click here to link to CAD file page with .DWG and 3D files


3-Way Solenoid Valves: If you need an actuated valve with instantaneous on/off control, or a much smaller sized valve, or a lower-cost valve... Series THP is a compact solenoid valve ideal for many applications.

Ball Valves Index Page -- Overview and links to all ball valves, actuators, and accessories. Possibly the page you were on prior to this one.

Series MBV -- True BlueBall Valves -- Manual version of Plast-O-Matic's popular ball valveline; constructed with integral mounting lugs for easy addition of anactuator when needed. Features also include Trunnion design, reinforced shaft and PTFE thrust washer. 2-way and 3-waydesigns. Socket, threaded, flanged ends, NPT, BSP or Metric; customizingavailable.

Series EBV -- ActuatedBall Valves -- Electrically powered actuators for 2-way and 3-wayball valves, all sizes. Features Standard Manual Override.

Series ABV -- ActuatedBall Valves -- Pneumatically or hydraulically powered actuators for2-way and 3-way ball valves, sizes 1/2", 3/4", and 1". Air x air and "failsafe" air x spring models available; converts easily between types. Manualoverride standard.

Series ABR -- ActuatedBall Valves -- Pneumatically or hydraulically powered actuators for2-way and 3-way ball valves, sizes 1-1/4", 1-1/2", and 2". Air x Air and"fail safe" Air x Spring models available. Manual override standard on airx air, optional on air x spring version. Air x spring converts easilybetween fail safe "open" and fail safe "closed."

Series TMBV --3-way Manual Ball Valves -- Explanatory page for 3-way ball valves, all sizes. These are the valves that serve as the base for the actuated packages depicted on this webpage.

Series TEBV -- Electrically Actuated Ball Valves 3-Way Electrically-Actuated Ball Valves, for installations where compressed air or hydraulic power is not available or practical.

Series LMBV --Lateral Reducing Ball Valve -- Explanatory page for lateral reducingball valves which simplify lateral connections.

Series Z-Vent MBV --Vented Ball Valve for Sodium Hypochlorite -- Vented ball valve for sodium hypochloriteand other applications prone to outgassing.

Series LS --Limit Stops -- For use with actuated ball valves.

Series SW --Limit Switches -- For use with actuated ball valves.

Air-Operated Diaphragm Valves and Globe Valves-Perhaps your application requires more rapid shut-off, or you want to use line pressure to open the valve, or have other reasons you don't specifically want a ball valve. If so, True Blue ASO, BSD, or BSR is likely to meet your needs.

Online Pressure DropCalculator -- Allows you to easily determine the probable pressuredrop across a valve. Note: For comparison and illustrative purposesonly; not to be relied on for system design.

5 Most Common Mistakes When Specifying Valves

Valve Pressure Loss & Flow - Q&A and Equations
(Explains Cv and Delta P, how to better specify valves, etc.)

Additional Info: Catalog Request Catalog TABV

Plast-O-Matic Valves, Inc.
1384 Pompton Avenue
Cedar Grove, NJ 07009 USA
Voice: (973) 256-3000
Fax: (973) 256-4745


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