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KNR Heavy Duty Ball Valve

1、KN Series ball valve, excels by offering problem solutions from a modular system. The selection of fluoroplastic linings, the large temperature/pressure range and the numerous options permit a tailor-made solution for virtually every application involving highly corrosive and ultrapure media.

2、The standard KN/KNA modular system.
ISO/DIN and ASME/ANSI body, 3 lining materials, universal stem sealing, 4 standard ball versions..

3、KN/KNA Series ball valve
• Shut-off and control valves for highly aggressive fluids
• For applications where stainless steel, special metals and standard plastics are not sufficiently corrosion-resistant
• The lower-cost alternative to special metals
• Suitable for pure, ultrapure and solids-laden media

 

Main Features

1、Permanently tight body connection 
• Also with frequent temperature changes
• Sealing surface with full lining
• Labyrinth-like sealing
2、Maximum surface pressure between the body halves
• Body halves center themselves exactly to each other owing to the fit
• Almost metallic stop absorbs pipe forces
3、Richter ENVIPACK stem sealing with active stainless steel packing gland follower
• Conformity with German Clean Air Act (TA Luft), self-adjusting
• Bellows-type PTFE packing insert
• Gas-tight to EN 12266 leakage rate A
• Virtually maintenance-free sealing even with frequent hot/cold cycles
• Visual inspection of the pre-tensioning action
• Can be re-adjusted from outside in a controlled manner
4、1-piece, PFA-lined ball/stem, optionally Al2O3 ball and special versions

KNR Heavy Duty Ball Valve
Specifications

1) Size range:0.5"-8"(DN15 - DN200)
2) Pressure Rating: Vacuum to 17.2bar (250 psi) 
3) Temperature Rating: -60°C to 200°C ( -75°F to 400°F).
4) Material.
• Body: Ductile iron EN-JS 1049 / ASTM A395 lined PFA, or stainless steel 1.4408 (316,CF8M) lined PFA
• Lining:PFA, optionally PFA-L antistatic, PFA-P highly permeation-resistant or Ultrapure (e.g. pharma applications PFA-HP)

 

Applications
  • Shut-off, throttling and control of corrosive, hazardous, pure, and solids-laden media in the chemical pharmaceutical and other industries.