Neotecha-P-P000261

Válvulas revestidas Neotecha Modelo NeoSeal

Product Description

Uma solução revestida em PTFE conforme a ISO 5752/5 para dimensões curtas (EN 558-1/T5) com diversos materiais de disco resistentes à corrosão

ped

Características

  • Upper and lower set of Belleville springs put pressure to keep the two sealing surfaces of the stem seal together resulting in a superior TA-Luft / VDI 2440 approved. tem seal.
  • The elastomer back-up pads behind the liner ensure a tight fit around the disc, for a bubble tight shut-off.
  • The liner provides a wide flange sealing surface.
  • A one piece thin disc stem lined with 3 mm molded PFA providing high Kv values.
  • The liner and disc are the only two valve parts in contact with the medium.
  • Primary shaft sealing by preloaded contact between disc and liner hub.
  • Secondary shaft seal by oversizing the shaft diameter in relation to the shaft hole in the liner.
  • The liner and disc are molded and machined to close tolerances to provide:
    • low torque
    • less stress and deformation during opening and closing
  • Vacuum tests with helium with pressures less than 20 Pa absolute (0.2 mbarA).
  • Optional TFM lining available for extremely demanding applications.
  • Integral body locating holes to ensure perfect centering of the valve.
  • Actuator flange and stem dimensions acc. ISO 5211.
Certificações
PED, emissões evasivas, CUTR, CRN, CE
Ligação de extremidade
Com olhais, wafer
Design do corpo
Padrão curto
Material
Ferro maleável
Temperatura operacional
Menos que 200 °C
Classe de pressão
PN
Tipo de sede/selo
Revestido
Padrão do tamanho da válvula
DN
Meio
Líquidos/gases agressivos

Documentação e desenhos

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