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Model 4420

Model 4420
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Turbine Fuel Shut-off Valve Model 4420 Overview Model 4420 has been designed specifically for use as a fuel shut-off valve in gas turbine applications. The 4420 is a single acting spring return, pneumatically actuated valve and is available in both 2-way and 2-way vented versions: Typical applications Developed for use in manual and automatic control systems: l Fuel shutoff valve for gas turbines in the 10 to 30 MW size range l Starting air/gas valve l Vented fuel/gas valve Key features and benefits l Less than 100 millisecond Close Time l Unique “vent” port - no need for separate bleed valves - reduced installation cost Model 4420 Turbine Fuel Shut-off Valve l 2-Way & 2-Way Vented l Open/Closed Position Switch Indication (Optional)

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Turbine Fuel Shut-off Valve - Model 4420 Operation The 4420 valve is a single acting, spring return, pneumatically actuated valve and is available in both 2-way and 2-way vented versions: 2-Way version When pressure is applied to the pilot port, the valve is opened to allow the flow to travel from the IN port to the OUT port. When the pilot pressure is released, a spring closes the main ports. 2-Way vented version When pressure is applied to the pilot port, the valve is opened to allow flow to travel from the IN port to the OUT port. The VENT port is closed. When the pilot pressure is...

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Turbine Fuel Shut-off Valve - Model 4420 Flow charts 2" metric flowrate 2” Flow Chart for Natural Gas (SG = 0.65) at 120˚C 10 bar Flowrate (cubic maters per Flowrate (cubic metres per hour) hour) 2” 2" Flow Chart for Natural Gas (SG 0.65) at 250˚F Flow Chart for Natural Gas (SG = = 0.65) at 250°F 2” Flow Chart for Natural Gas (SG = 0.65) at 250˚F 200 psi Flowrate (SCFM) Flow Rate (SCFM)

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Turbine Fuel Shut-off Valve - Model 4420 Flow charts 3" metric flowrate 3” Flow Chart for Natural Gas (SG = 0.65) at 120˚C 10 bar Flowrate (cubic metres per per Flowrate (cubic metershour) hour) 3" Flow Chart for Natural Gas (SG = 0.65) at 250°F 3” Flow Chart for Natural Gas (SG = 0.65) at 250˚F 200 psi Flow Rate (SCFM) Flowrate (SCFM)

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Turbine Fuel Shut-off Valve - Model 4420 How to order Use the tables below to select the unique specification of your Model 4420 Turbine Fuel Shut-off Valve: Example Code Basic Model and revision Valve Size and Type Connection Code Internal Material Code 04 Code Description Basic Model - Stainless Steel Switch Options none CSA Class 1, Div. 1, Groups A, B, C, D Open Closed Open/Closed UL Class1, Groups A, B, C, D Open Closed Open/Closed ATEX Certified Open Closed Open/Closed Pilot Solenoid Options None 3-way QE solenoid, SS, UL/CSA, 24VDC 3-way QE solenoid, SS, UL/CSA, 120VDC 3-way QE...

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Turbine Fuel Shut-off Valve - Model 4420 Dimensions Flange connections Dimensions in mm (inches) Dimension

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AMOT USA 8824 Fallbrook Dr Houston, TX 77064 USA AMOT Shanghai Rm 4102 - 4104 United Plaza 1468 Nanjing Road West Shanghai 200040 China Europe, Middle East and Africa AMOT Western Way Bury St Edmunds Suffolk, IP33 3SZ United Kingdom Tel +44 (0) 1284 762222 Fax +44 (0) 1284 760256 Email info@amot.com AMOT Controls GmbH Rondenbarg 25 22525 Hamburg Germany Tel +49 (0) 40 8537 1298 Fax +49 (0) 40 8537 1331 Email germany@amot.com AMOT Russia #34 Shabolovka Street Building 2 Moscow 115419 Russia Tel +7 495 617 12 93 Fax +7 495 913 97 65 Email russia@amot.com

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Model 4420 7Pages

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Model 4420
7Pages