Orifice Plates


The OP Series ceramic restriction orifice plates are ideal for reducing pressure and/or flow in piping systems, and are also effective in reducing or completely eliminating cavitation downstream of control valves.  They feature a solid silicon carbide ceramic insert enclosed in a durable stainless steel housing.



  • Silicon carbide ceramic is the only wetted component in the process
  • Abrasion and wear resistant
  • Corrosion-resistant
  • Unaffected by cavitation
  • ±0.002” bore tolerance
  • Temporary metallic orifice inserts may be provided for commissioning and start-up

Technical Specifications

Size Range: ½” to 14”
Pressure Rating: ANSI 150 lb. to ANSI 1,500 lb.
Max Operating Temperature: 1,000° F
Max Thermal Shock Ability: 700° F
Max Differential Pressure: 3,000 psi
Ceramic Material: Sintered Silicon Carbide


OP Brochure


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