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Valve Operation

Valve Operation. Manual 1. Handle 2. Gear Operator Automatic ON/OFF Pneumatic Electric Modulating Pneumatic Electric. Pneumatic Operation. MODULATING Instrument Signal Actuator Selection Valve Working Conditions Plant Air Double Acting Spring Return Fair Close Fair Open.

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Valve Operation

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  1. Valve Operation • Manual 1. Handle 2. Gear Operator • Automatic • ON/OFF • Pneumatic • Electric • Modulating • Pneumatic • Electric

  2. Pneumatic Operation MODULATING • Instrument Signal • Actuator Selection • Valve • Working Conditions • Plant Air • Double Acting • Spring Return • Fair Close • Fair Open ON/OFF • Actuator Selection • Valve • Working Conditions • Plant Air • Double Acting • Spring Return • Fair Close • Fair Open

  3. Pneumatic Accessories • SOLENOID VALVE • LIMIT SWITCH • SPEED CONTROLS • POSITIONER • MANUAL OVERRITE St. Hans and its Subsidiaries manufacture and supply actuators (both pneumatic and electric) as well as accessories to customers in various industries.

  4. St. Hans Alpha ALS Series Valve Monitors Limit Switch “ Position Indicating Switch” - Wayne Ulanski: Valve and Actuator Technology

  5. Limit Switch Indicates the valve positions by contacting switches. Consists of Switches/Sensors Cams Shafts Terminal Strip Housing Box Seals Visual Indicator

  6. Mechanical Switch Mechanical Switches SPST: Single Pole, Single Throw SPDT: Single Pole, Double Throw DPDT: Double Pole, Double Throw

  7. Proximity Switches Proximity Sensors Operate - Metallic object closes to sensor Need power supplied to sensors Magnetic Sensors/Reed Switch Low Current Switch Operate-Magnet closes to sensor

  8. Model ALS200 SVF Model LS-820 NEMA 4, 4X Temperature Range: - 5 OF to 185 OF Cable Entry: 2 x ½” NPT Terminal Strips: 8-12 Position Indicator: Open-Yellow; Closed-Red Mechanical Switches: 5A, 120-250 VAC Proximity Sensors: DC 24 V (10-30 VDC), ≤150 mA Magnet Sensors: 5-240 VAC/DC, ≤ 300 mA

  9. Model: ALS300 Large Housing Box than ALS200 Configured to DPDT, Position Transmitter Feedback NEMA 4, 4X Temperature Range: - 5 OF to 185 OF Cable Entry: 2 x ½” NPT Terminal Strips: 8-14 Position Indicator: Open-Yellow; Closed-Red Mechanical Switches: 15A, 120-250 VAC Proximity Sensors: DC 24 V (10-30 VDC), ≤150 mA Magnet Sensors: 5-240 VAC/DC, ≤ 300 mA Position Transmitter: Feedback 4-20 mA

  10. Model: ALS400 • IP67, Weather Proof • ATEX Ex d II C T6 Explosion Protected, Protection Type d (flameproof) Group II, not mines, Gas Group C (Acetylene & Hydrogen)

  11. Model: ALS400 … continued • Temperature Range: - 5 OF to 185 OF • Cable Entry: 2 x 3/4” NPT • Terminal Strips: 8-12 • Position Indicator: Open-Yellow; Closed-Red • Mechanical Switches: 15A, 120-250 VAC • Proximity Sensors: DC 24 V (10-30 VDC), ≤150 mA • Magnet Sensors: 5-240 VAC/DC, ≤ 300 mA • Position Transmitter: Feedback 4-20 mA

  12. Model: ALS500 • IP67, Weather Proof • ATEX Ex d II B T6 Explosion Protected, Protection Type d (flameproof) Group II, not mines, Gas Group B (Ethylene)

  13. Model: ALS500 … continued • Temperature Range: - 5 OF to 185 OF • Cable Entry: 2 x 3/4” NPT • Terminal Strips: 8-10 • Position Indicator: Open-Yellow; Closed-Red • Mechanical Switches: 15A, 120-250 VAC • Proximity Sensors: DC 24 V (10-30 VDC), ≤150 mA • Magnet Sensors: 5-240 VAC/DC, ≤ 300 mA • Position Transmitter: Feedback 4-20 mA

  14. Model: ALS600 • Same as ALS-500 with completed SS304 or SS316 Housing Body and Cover.

  15. Order Guide

  16. Various Indicators Indicators

  17. Wiring Diagrams (1)

  18. Wire Diagrams (2)

  19. Wire Diagrams (3)

  20. St. Hans Alpha ALSD Series Discrete Valve Controllers

  21. Crossover Reference

  22. Production Facility

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