Two- and three-way control valve (equivalent to pneumatic versions series 11M9-2 and 11M9-3 / 12M6-3) equipped with electric engine series 11LH
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
- Fail-last function
- Microprocessor with automatic self-calibration at startup
- LED indicator to check status of the actuator
- Not-consumable measuring system of distance, without potentiometer
- Permanent storage in EPROM memory: values cannot be lost
- Identification line breaks in runs 2-10 VDC and 4-20mA
- Detachable cap and adaptable in 4 positions (every 90°) without any screw
- Fail-safe position for switching of binary signal
- Disengageable manual adjustment with signaling message
- Identification of continuous operation errors (in case of locking by extraneous matters)
- Input and output independently reversible
- Input signal freely adjustable: 3-point or modulating
- No need of grounding (PE);
- Freely-adjustable hysteresis
