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11LS

Two - and three-way control valve (equivalent to pneumatic versions series 11M9-2 and 11M9-3 / 12M6-3) equipped with electric engine series 11LS for hazardous areas

11LS

Valve

  • Body in ductile iron EN-GJS-400-18-LT, carbon steel WCB (1.0619) or A351 CF8M (1.4408)
  • Multi-spring actuator in carbon steel with epoxy coating or stainless-steel AISI316
  • Normally-closed and normally-open function
  • Seal in PEEK, metal-metal
  • Equal-percentage characteristic (EQ%); linear on request
  • Self-adjustable packing in PTFE and FPM
  • Guided shaft in stainless-steel AISI316 (1.4401) or 17-4PH (1.4542), grinded and polished
  • Upper and lower guides for plug (standard from DN 32 to DN 300)
  • Leakage classes: IV, VI
  • 4-Port body for easier maintenance and inspection
  • Maximum temperature up to +500 °C (+930 °F)
  • Minimum temperature down to -196 °C (-320 °F)
  • Connections: DIN / ANSI flanges - BSPP – NPT – BW – SW

Engine

Model - LSER

  • ATEX protection class for use in zones 1, 2 (gas) and areas 21, 22 (dust)
  • Multi-voltage unit from 24 to 240 V - AC / DC
  • 2-selectable classes of thrust
  • 5 selectable speeds
  • Input signal: 3-point or modulating
  • Reversible input signal
  • Total protection against overload
  • Integrated Ex-e junction box
  • Mechanical stroke limiter, adjustable from 5 to 60mm
  • Manual control
  • Temperature control sensor
  • LED indicator of status


ATEX Gas-II2(1)G Ex d [ia] IIC T6/T5 Zone 1,2

 


ATEX Dust - II2(1)D Ex tD [iaD] A21 IP66 t80°C Zone 21, 22

Model - RSEM

  • Actuator with spring return
  • ATEX protection class for use in zones 1, 2 (gas) and areas 21, 22 (dust)
  • Multi-voltage unit from 24 to 240 V - AC / DC
  • 5 selectable speeds
  • Input signal: 3-point or modulating
  • Reversible input signal
  • Total protection against overload
  • Manual control
  • Temperature control sensor


ATEX Gas-II2(1)G Ex d [ia] IIC T6/T5 Zone 1,2

 


ATEX Dust - II2(1)D Ex tD [iaD] A21 IP66 t80°C Zone 21, 22


 

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VALVOLE Hofmann by BONINO Engineering srl  
Via Muzzano 31 - 13897 Occhieppo Inf. (BI) Italy
Phone +39 015 2593403  |  Fax +39 015 2593844 |  info@valvolehofmann.com
P.IVA e C.F. IT01640370027