Válvula macho de duas vias com construção especial para plantas de alquilação (Ácido fluorídrico)

ASME: NPS ½“ – 8“ / class 150 / 300
PT range: -30 < T < 230/280°C, vacuum 10-8 mbar

Design Features

Características construtivas

  • Sem espaço morto
  • Livre de manutenção – autolubrificada
  • Fácil acesso para o reajuste do macho, inclusive para válvulas automáticas
  • Recomendada para aplicação em vácuo
  • Certificação TA-Luft 2002 (Dekra) – baixa emissões fugitivas
  • Certificação SIL 3 capable (Exida)
  • Firesafe design  conforme API 607 ISO 10497 (atmosfera)
  • Design especial para aplicações em Ácido Fluorídrico (plantas de alquilação com HF):
    – corpo, macho e tampa em monel
    – flanges e tampa com pintura especial para detecção de emissões de HF (amarela ou laranja)
    – macho com furo de alívio
    – vedação suplementar tipo FSN (tripla vedação de haste)
    – ensaio de Raio X para o corpo

PT-Diagram

PT-Diagramm-2015-GB

Operating temperatures < -30°C and > 220 °C have to be checked and approved by AZ according to the operating conditions.

Besides the P/T value of the sleeve the limitations of the valve bodies also have to be considered. Please refer to the EN 12516-1 resp. ASME B16.34 in order to choose a proper pressure rating (PN/class). The shown values refer to austenitic stainless steel 1.4408 (A351 Gr. CF8M).

1) For operating temperatures below -10°C low temperature / austenitic steels are required.
2) Sleeve: There are different sleeve materials / compounds available.

Materials

Standard body material
• Monel, ASTM A494 M35.1

Standard plug material
• Monel, ASTM A494 M35.1

Sealing Systems

[table id=28 /]

Plug Forms

Kuekenform-D

Dimensions

Techn-Daten-GB-F2-STD-1

Techn-Daten-GB-F2-STD-2

For geometric reasons, threads are used in the flange bores in a few cases

Actuation

actuation-valves-met

1 Locking Devices
Pilot valve combinations, pad lock eyelets, linear key conception, indexing plunger arrestor.
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2 Plug stem extension
Solid construction in stainless steel with T-wrench, Standard extension 100 mm or 150 mm, non standard lengths are available on request
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3 Actuators
Actuators for mounting-flange acc. to DIN ISO 5211
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NEW: Pneumatic actuator AIR GEAR for plug valves with high torque =150.000 Nm
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4 Ratched coupling
To usw on multiport valves with standard 90° actuator for bigger switchpositions than 90°
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5 Cover extension
Solid construction in stainless steel, Standard extension 100 mm or 150 mm high,  non standard lengths are available on request . Hexagonal bolts on adjustment ring freely accessible. Note: Don’t use with sealing FSN/FSN-SL and CASN/CASN-SL
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