Valve actuator

BGA series


The BGA series is a bevel gear type valve actuator that can be attached to gate and round valves that receive thrusts for easy manual switch control. With an adaptor, it could be attached to existing valves. It has a compact design with a built-in thrust pairing. This is the newest model for the previous BA series which has sold over a few hundred thousand units, used in water and sewage systems, water gates and power plants.


water ansd sewerage treatment plants, sluice gates, power plants.


  • – It has a sealed structure and is ready for immediate use with hyper pressure grease inside.
  • – Round shaft bearing is used for all bearings and is over 90% effective.
  • – With a hammer blow function, it is easy to close the valve (no lost motion for BGA-4)
  • – The stem nut is an involute / spline double feature, and can be easily taken apart for screw processing.
  • – The opening meter and display limit switch can be easily attached.
  • – By attaching either a SMB, JMB, or L120 series actuator using a standard adaptor in place of the manual handle, it could easily be made electric.
  • – We offer accessories like hand wheels, stem covers, and stem plugs.
  • – There also is an orthogonal two shaft type to match a wide range of systems.


Type & Size BGA-04 BGA-00 BGA-0 BGA-1 BGA-2 BGA-3 BGA-4
Gear Ratio 2:1 2.5:1 3:1 4.11:1 6:1 9:1 10:1
Max. Thrust Capacity(kN) 26 62 98 200 340 620 1,200
Max. Torque Capacity(N・m) 110 340 740 1,500 2,900 5,900 12,000
Max. Stem Acceptance(mm) Stem Dia 40 46 55 62 85 115 130
Bore Dia&Keyway 30 35 45 52 70 95 110
Weights(approx.) 12 18 25 45 84 223 380

※1 The stem nut will be supplied with the standard pilot bore.
※2 Unit is desgined to handle a one time thrust overload of 1.5 times its rating.

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