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Forged Trunnion Ball Valves

Class 150 to Class 2500
Size Range ½” thru 36” (Class Dependent)

Trunnion | Forged

150# to 2500# | Size Range ½” thru 36”

  • Class 150 to Class 2500
  • Size Range ½” thru 36” (Class Dependent)
  • Full and Reduced Bore
  • Body Wall Thickness ASME B16.34
  • End Connections: RF, RTJ, BW, SW, NPT, BSP, Special
  • Fugitive Emissions ISO 15848
  • Fire-Safe Tested API 607
  • Emergency Sealant Injectors Optional
  • Anti-Static Device and Live-Loaded Packing
  • Guided Seat Design
  • Blowout Proof, Low Torque Guided Stem Design
  • Wide Range of Soft and Metal Seated Options
  • Manual, Electric, Pneumatic, or Electro-Hydraulic Operators Available
  • Custom Face-to-Face Lengths Available
  • Options: Emergency Shutdown (ESD) Valves, Welded Body for Municipal Heating, Cryogenic, Metal-Seated, Double Block and Bleed, Double Isolation and Bleed

Sesto Valves are designed and manufactured to internationally recognized standards including but not limited to the following:

Fire Testing: API 607 Certified
Testing: API 598, API 6D, ISO 15848, ISO 5208
Design: ASME B16.34, ASME B16.5, ASME B16.10, NACE MR0175
Markings: MSS-SP-25, PED, NACE
Certifications: API 607, SIL, NACE, PED, ISO 15848, API 608

Check out these Case Studies!

1-1/2” SS Trunnion, ANSI 1500#, Metal Seated, Zero Leakage, Completed in Less Than 3 Months Case StudiesSesto Forged
November 26, 2025

1-1/2” SS Trunnion, ANSI 1500#, Metal Seated, Zero Leakage, Completed in Less Than 3 Months

This 1-1/2” SS Trunnion, class 1500, was designed with a seat combination configuration which will assure no leakage in the designated flow direction but will self relieve to the upstream pipe as required. The valve is mounted to a customer supplied actuator and ready for…
Max-Air Technology
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Custom Forged Sesto Trunnion Ball Valves w/ Air Controls, Explosion Proof Termination, & Pneumatic Actuators Case StudiesHD SeriesLimit SwitchesMT SeriesSesto ForgedSolenoid Valves
July 28, 2025

Custom Forged Sesto Trunnion Ball Valves w/ Air Controls, Explosion Proof Termination, & Pneumatic Actuators

Even more Pneumatically Automated Explosion Proof Forged Trunnion Valves are shipping today! This order is a great example of the transition point between affordability of a Rack & Pinion and Scotch Yoke. At some point in the consideration of a higher torque actuator, the decision…
Max-Air Technology
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4″ Forged Sesto Carbon Steel Metal Seated Trunnion Ball Valves w/ Max-Air Spring Return Scotch Yokes & Air Handling Case StudiesHD SeriesSesto ForgedSolenoid Valves
October 11, 2024

4″ Forged Sesto Carbon Steel Metal Seated Trunnion Ball Valves w/ Max-Air Spring Return Scotch Yokes & Air Handling

Through our Sesto Valves brand, we supply a variety of engineered ball valve solutions! These 4" Class 600 Carbon Steel Metal-Seated Trunnion Valves are going into high pressure steam service. The 316 Stainless Steel Ball and Seat are coated with Tungsten Carbide. All of this…
Max-Air Technology
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3/4″ Class 2500 Forged Sesto ball Valves w/ Max-Air Stainless Steel Actuator, Limit Switch, Air Filter Regulator, & Tubing Case StudiesSesto ForgedSS Series
October 4, 2024

3/4″ Class 2500 Forged Sesto ball Valves w/ Max-Air Stainless Steel Actuator, Limit Switch, Air Filter Regulator, & Tubing

These 3/4" (Class 2500) 3-Way Trunnion Sesto Premium Ball Valves were produced by our team for a contract manufacturer to integrate into a chemical injection skid that will go on a production platform in Trinidad. They include our Stainless Steel Rack & Pinion Actuators with…
Max-Air Technology
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