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NAF Setball (v-port)

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The NAF Setball (v-port) is a ball sector valve with metal-to-metal or metal-to-PTFE seating. It combines the best control characteristics of a ball valve and a butterfly valve, making it suitable as both a control valve and a shutoff valve. The NAF Setball (v-port) is available as standard in stainless steel but can also be supplied in other materials such as CG8M, Titanium, etc.

 

This valve features a one-piece, leak-proof stainless steel body, a V-shaped sector for accurate control, and PTFE lined bearings. It also includes a standard Stellite seat that can be converted to PTFE without dismantling the valve.

  • Specifications
  • Technical Data
  • Advantages
  • Industries
  • Applications
  • Documents
  • Contact

Specifications

  • Material: Stainless steel, CG8M, Titanium, etc.
  • Seating: Metal-to-metal or metal-to-PTFE
  • Leakage: Maximum leakage in the direction of flow is less than 5 x 10⁻⁶ of the Kv value

Technical Data

  • Size Range: DN 25-400 (1-16″)
  • Pressure Rating: PN 10-40 (ANSI Class 150, 300)

Advantages

  • Combines control characteristics of both ball and butterfly valves
  • Low operating torque due to top and bottom bearings
  • V-shaped sector for accurate control over a wide range
  • Easy conversion of Stellite seat to PTFE without dismantling
  • Maintenance-free O-ring stem seal design
  • CE-marked according to Pressure Equipment Directive (PED 97/23/EG) module H, category III

Industries

  • Paper Stock
  • Coatings
  • Digester
  • Chemical and Liquor
  • Bleach Chemicals

Applications

The NAF Setball can be used both as a control valve and as a shut-off valve in a wide variety of applications and operating modes. It is designed for functionality, high quality, and low life-cycle costs, making it suitable for a range of industrial applications, including those involving high-density black liquor and chlorine bleaching.

Contact Us

Contact our Valve Specialist Team

  • Brendan Merrigan (External) – mob: 087 2598124
  • Vicki McGrath – tel: 021 461 7207
  • Brian Barry – tel: 021 461 7211
  • Tim Quigley – tel: 021 461 7209
  • Ross O’Donovan – tel: 021 461 7230
  • Shauna O’Connor – tel: 021 461 7237
  • Tel: 021 461 7200

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