Three way control valve Valvole Hofmann ITALY
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
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ATEX Gas-II2(1)G Ex d [ia] IIC T6/T5 Zone 1,2 |
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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
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ATEX Gas-II2(1)G Ex d [ia] IIC T6/T5 Zone 1,2 |
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ATEX Dust – II2(1)D Ex tD [iaD] A21 IP66 t80°C Zone 21, 22 |
