• Multi-Step Axial Flow High Resistance Trim: Pressure reduction occurs along the length of the plug in a series of throttling stages. The fluid also takes a tortuous flow path, which adds resistance and therefore velocity head loss.
• The special design provides control of high pressure fluids without the Erosion, Vibration or High Noise Levels commonly associated with conventionally designed Control Valves.
• High allowable pressure drops: No individual stage is exposed to the full pressure drop, thus extending Trim life substantially.
• Adiabatic Flow with Friction: Reduces pressure much in the same way as pressure loss occurring in a long pipeline.
• Low Pressure Recovery: This minimises Cavitation potential and contributes towards reduction of Noise for all fluids. Pressure recovery factors as high as 0.998.
• Standardised high performance material: To ensure material integrity, 78000 Series valves are machined from solid steel forging (Cast construction is optional). High performance Trim material ensures durability in any severe application.
• Balanced Trims: Available for sizes 2” and above, allow much higher shut-off pressures with conventional Actuators.

Standard Sizes & Rating

½" to 6" : ANSI 300# to ANSI 2500#

Seat Leakage Class

(as per ANSI/FCI 70.2)
Standard : Class V
Optional : Class VI

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