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RMA-ball valves are trunnion mounted with maintenance-free bearings in all sizes (DN 50 and greater) and all pressure ratings.
The precision machining and special low friction bearings ensure minimum wear. This is
particularly advantageous for the resistance and smooth operating of ball valves. These low torque levels are
also an advantage when dimensioning gears, electrical, pneumatic or hydraulic actuators.
RMA Welded Body Ball Valve


NPS 1” to 56” Full Port / Reduced Port
Pressure Ratings
ASME 150CL to 1500CL
SPE / DIB1 / DIB2 Seat Designs
Temperature Range
-49F to 752F / -45C to 400C
Design Standards
API 6D.QSL1, ISO 14343, API 607 and API6FA, CSA Z245.15.17 NACE MR0175, ISO 15156, CRN


  • Welded body type
  • Trunnion mounted, double block and bleed
  • Forged balls sourced from Italy
  • In house Chromium Plating
  • Fire safe certified
  • Pup manufacturing and installation
  • Anti-blowout stem design (API 608)
  • Anti-static device
  • Double piston / self-relieving seat designs (DBB / DIB1 / DIB2)
  • Emergency grease stem sealing
  • Adjustable stem packing
  • Emergency grease seat to ball sealing