SDVOSB Certified
Friendswood, TX

Anti-Cavitate Orifice Plate™

Restrict Flow’s Anti-Cavitate Orifice Plate™ is a single-stage, fixed-geometry pressure-reduction device for liquid piping systems where a standard restriction orifice plate may create damaging downstream cavitation. It is engineered to manage pressure drop and cavitation within the device while fitting between standard flanges.

  • Liquid applications only
  • Fits between standard flanges within a compact flange-to-flange envelope
  • No pipe configuration change
  • One plate, one pressure drop
  • Custom engineered from submitted system data

Cavitation control
in industrial piping systems

Cavitation is a system-level problem driven by pressure drop and energy dissipation within piping systems.

Cavitation in liquid flow: cavitating vs. Anti-Cavitate Orifice Plate™
© 2026 Restrict Flow L.L.C.| restrictflow.com .

Side-view engineering drawing comparing a multi-stage orifice assembly spanning a full spool length against an Anti-Cavitate Orifice Plate™ installed as a single wafer between two flanges.

Restrict Flow’s Anti-Cavitate Orifice Plate™ can often replace a larger multi-stage assembly while managing the required pressure drop within a compact, single-stage device.

Code compliance

ASME B31.1 & B31.3

Power piping and process piping. Engineered to your service conditions. Stamped identification on the plate handle upon request.

Federal Contracting

SDVOSB-Certified

Service-Disabled Veteran-Owned Small Business. Eligible for federal set-aside contracts.

Installation

Fits between standard flanges

Installs like a standard orifice plate within a compact flange-to-flange envelope.

Construction

One-piece, no wet welds

Single-piece body engineered from the metallurgy the service environment requires.

What this plate does

Manage pressure drop inside the plate

Restrict Flow’s Anti-Cavitate Orifice Plate™ is engineered for liquid applications where a standard restriction orifice plate may create damaging downstream cavitation. Its single-stage flow path manages pressure drop and cavitation within the device, helping reduce damaging vapor collapse in downstream piping.

Common goals

  • Reduce cavitation-related wear
  • Protect downstream piping and components
  • Limit noise and vibration
  • Fit between standard flanges
  • Avoid long multi-stage assemblies
Engineered to your system

Each plate is engineered to the application

Each Anti-Cavitate Orifice Plate™ is designed from the operating conditions provided, including flow rate, pressure drop, pipe size, fluid properties, and temperature.

Flow rate

Design flow in GPM establishes the velocity and energy the plate must dissipate.

Inlet & outlet pressure

The differential across the plate defines the pressure recovery profile and cavitation risk.

Pipe size & schedule

Bore geometry and the available envelope are set by line size and wall schedule.

Fluid type & temperature

Fluid properties and vapor pressure govern where flashing or cavitation would occur.

What makes it different

Cavitation is managed inside the plate

The Anti-Cavitate Orifice Plate™ is engineered to manage cavitation and pressure reduction within the plate rather than allowing damaging vapor collapse to occur downstream in the piping. It installs between two standard flanges within a compact flange-to-flange envelope, allowing it to fit existing piping layouts without major modification.

One-piece, engineered construction

Each plate is fabricated from a single piece of material and can be engineered from virtually any metallurgy the application requires. The result is a robust, application-specific flow element with no moving parts and no internal assemblies.

  • No moving parts
  • No internal assemblies
  • No wet welds exposed to the process fluid

Single-stage, engineered design

Where high pressure drops have traditionally been handled with multi-stage orifice plates, the Anti-Cavitate Orifice Plate™ achieves the required reduction in a single stage through engineered three-dimensional geometry.

The internal design is proprietary and not publicly disclosed. Each unit is custom engineered, and design details are protected to maintain performance reliability.

Maintenance & turnaround

Reduced inspection burden at turnaround

Inspection and maintenance requirements are simpler than many multi-stage designs. Multi-stage assemblies remain a traditional approach to high pressure drop, but their additional stages and larger assemblies can increase inspection and maintenance requirements compared with a single engineered plate.

Anti-Cavitate Orifice Plate™

  • One-piece construction with no wet welds
  • No pressure testing of internal wet welds
  • No bore scope inspection of internal stages
  • Simplified inspection during plant turnarounds
  • Visual inspection only

Multi-stage orifice plates

  • Multiple restriction stages
  • May include internal welds exposed to process fluid
  • May require additional inspection of internal stages
  • Greater number of components and potential failure points
  • Longer inspection and maintenance time

The result is a simpler inspection profile compared with larger multi-stage assemblies.

Representative case

Typical application data

Each unit is engineered per application. The configuration shown is a representative design case only. Actual designs vary with project-specific data.

Applications

Fluid
Water
Flow rate
3,590 GPM
Inlet pressure
112 PSIG
Outlet pressure
2.1 PSIG
Pipe size
12″ nominal
Material
316 stainless steel
Flange rating
125# (AWWA C115)

Sample configuration. Actual flange spacing and installation requirements depend on the final engineered design, flange arrangement, and project conditions.

The internal design of the Anti-Cavitate Orifice Plate™ is proprietary and not publicly disclosed. The spec sheet shows how the plate fits within existing piping envelopes and achieves the targeted pressure drop for one engineered case.

Submit System Data

Every plate is engineered to your system

Provide flow rate, inlet pressure, desired outlet pressure, pipe size and schedule, and fluid type and temperature. Restrict Flow will review the submitted system data and follow up if additional information is needed.