NAF – Trimball Ball Control ValveEnquire Now

NAF 8211 Trimball Ball Control ValveNAF 8211 Trimball Ball Control Valve

BRAND: NAFCATEGORY: Ball Valves, Control Valves,

The NAF Trimball is a rotary control valve which is specifically designed for demanding applications where media and high pressure drop conditions result in cavitation, noise and erosion. The valve has options of an A-trim or Z-trim which are ideal for a variety of applications.

The A-trim has a number of zig-zag channels, which when the flow is controlled from the closed position, the channels are opened one by one. Every channel comprises a large number of deflections, which enables the pressure drop to take place in a number of small steps. In addition, the area of each channel can easily be varied. These design features are necessary for effectively solving the problems of cavitation, erosion and noise during flow control.

The Z-trim reduces noise and cavitation by reducing the pressure drop in several steps. This design allows it to be used with impurities or fibres and has a self-cleaning effect. It has an easy to service arrangement, due to the off-centre joint face of the body, which allows for easy replacement of the ball and seals, without the need for removing the stem and actuator.

Contact one of our technical specialists for a quote today or download the brochure to learn more!

Specifications

SeriesTrimball
Design

Split Body Floating Ball

Features
  • Z –Trim self-cleaning for impurities
  • A-Trim for cavitation and noise reduction
  • Modular design / No brackets
  • Easy to service arrangement
  • Trunion mounted >400mm
Size
Range

50mm to 500mm (Z trim) / 2” to 20” (Z trim)

Pressure
Rating

PN10 – 40 / ANSI 150 – 300

TemperaturesUp to 350°C
End
Connections
Flanged
Body
Materials

Stainless Steel (Std)Other materials on request

Seat
Materials
PTFE / Carbon reinforced PTFE / Stellite
Ball
Materials
Stainless steel / Hard chromed / Solid Stellit
Options &
Accessories
Applications

Control and on/off for liquids and gases in the pulp & paper and other process industries

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