Related Manuals for Woodward GSOV80
Summary of Contents for Woodward GSOV80
- Page 1 Released Product Manual 35091 (Revision B, 4/2025) Original Instructions Gas Shutoff Valve GSOV80 - 3 in (80 mm) Installation and Operation Manual...
- Page 2 Revisions— A bold, black line alongside the text identifies changes in this publication since the last revision. Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly undertaken.
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Page 3: Table Of Contents
PTIONS Product Support Options ..........................28 Product Service Options ..........................28 Returning Equipment for Repair ......................... 29 Replacement Parts ............................30 Engineering Services ..........................30 Contacting Woodward’s Support Organization ................... 30 Technical Assistance ..........................31 ........................32 EVISION ISTORY ..........................33 ECLARATIONS... - Page 4 Figure 2-1. Lifting Eye Location ........................11 Figure 2-2. GSOV80 Outline Drawing ......................14 Figure 2-3. GSOV80 Outline Drawing ......................15 Figure 2-4. GSOV80 Wiring Diagram (valve closed position) ..............16 Figure 2-5. GSOV80 Cable construction ....................17 Figure 3-1. Valve Open ..........................21 Figure 3-2.
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Page 5: Warnings And Notices
Released Manual 35091 GSOV80 Gas Shutoff Valve Warnings and Notices Important Definitions This is the safety alert symbol used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. -
Page 6: Regulatory Compliance
Ambient. For use in Canada and the United States. Certificate 70184121. System) SIL Compliance: GSOV80 Gas Shutoff Valve – Certified SIL 3 Capable for Product in safety instrumented systems. Evaluated to IEC 61508 Parts 1-7. Refer to the instructions of this Installation and Operation Manual, Chapter 4 Safety Management. -
Page 7: Special Conditions For Safe Use
Mating electrical connector must be tightly installed to maintain the IP66 and Type 4 Enclosure ratings. The GSOV Actuation System may only be used on the GSOV80 for a maximum process fluid temperature of 193 °C (380 °F) and at maximum ambient temperature of 93 °C (200 °F). See Ch.1 for more information regarding the GSOV Actuation System. -
Page 8: Safety Symbols
Released Manual 35091 GSOV80 Gas Shutoff Valve Safety Symbols Direct current Alternating current Both alternating and direct current Caution, risk of electrical shock Caution, refer to accompanying documents Protective conductor terminal Frame or chassis terminal Woodward... -
Page 9: Chapter 1. General Information
Chapter 1. General Information Introduction The GSOV80 (3 inch / 80 mm Gas Shutoff Valve) is a high-speed fuel shutoff valve designed to terminate the turbine gas fuel supply should the electronic fuel control or sequencer interrupt the permissive electrical signal. -
Page 10: Gsov80 Specifications
Released Manual 35091 GSOV80 Gas Shutoff Valve GSOV80 Specifications Table 1-1. GSOV80 Specifications Description: Pneumatically actuated gas shutoff valve Closing Time: Less than 100 ms Opening Time: Less than 1 s Valve Seat Leakage: ANSI/FCI 70-2-2013 Class VI, forward and reverse... -
Page 11: Figure 1-1. Gsov80 Operating Envelope
GSOV80 Operating Envelope To ensure proper operation and conformance to limits defined in Table 1-1 GSOV80 shall be operated within pressure and ambient or fuel temperature limits shown on the graph below. Operating the valve outside of this envelope may result in slower response times or mechanical overstress. -
Page 12: Service Life Capabilities And Limitations
GSOV80 Gas Shutoff Valve Service Life Capabilities and Limitations If properly installed, maintained and operated within its design limits, the GSOV80 will operate up to 64,000 hours or approx. 2,500 cycles before requiring repair or overhaul. Periodically check the main seat leakage and overboard vent leakage. Excessive leakage may be an indicator of seal wear and warrant service. -
Page 13: Chapter 2. Installation And Maintenance
Installation and Maintenance Receiving The GSOV80 is tested with dry air and then packed in a foam-filled box for shipment. The unit may be stored for an extended period in the original container. Lifting Carefully review Figure 2-1 for lifting locations, weight, and center of gravity before moving the valve. -
Page 14: Installation
The GSOV80 valve is designed for installation between and supported by two standard 3-inch, Class 600 flanges per ASME B16.5. Additional supports are neither needed nor recommended. The inlet and outlet flanges are threaded per the outline drawings in Figures 2-2 and 2-3. - Page 15 Released Manual 35091 GSOV80 Gas Shutoff Valve Table 2-1. Piping Loads According to Valve Size Valve Size Max Pipe Axial Max Pipe Shear Max Pipe Max Flange Bolt Force Force Moment Force (Per Bolt) 80 mm 5400 N 5400 N 3300 N·m...
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Page 16: Figure 2-2. Gsov80 Outline Drawing
Released Manual 35091 GSOV80 Gas Shutoff Valve Figure 2-2. GSOV80 Outline Drawing Woodward... -
Page 17: Figure 2-3. Gsov80 Outline Drawing
Released Manual 35091 GSOV80 Gas Shutoff Valve Figure 2-3. GSOV80 Outline Drawing Woodward... -
Page 18: Electrical Connections
See Figure 2-4 for mating connector specifications and wiring diagram. See Figure 2-5 for recommended cable construction. Contact Woodward sales representative for dedicated Woodward cable. Refer to P/N 5450-2207.XX (where XX is required length in ft, 10-100 ft in 10 ft increments). -
Page 19: Solenoid Valve
Keep clear of the vent when cycling the valve. Because of the critical function of the GSOV80, it is mandatory that the turbine operators regularly monitor the condition of the valve. It should be inspected during all turbine maintenance intervals. - Page 20 (300 cm³)/min may indicate valve seal wear or a possible malfunction. If properly maintained and operated within its design limits, the GSOV80 will operate up to 64 000 hours or approx. 2,500 cycles before requiring repair or overhaul. The following maintenance checks should be completed at the prescribed intervals.
- Page 21 Review the specification section for solenoid voltage requirements and expected resistance. The solenoid valve can be replaced in the field if necessary For more details read Woodward manual CMM-03012. Routinely check the shutdown switches or relays to be sure they are capable of terminating the electrical supply to the solenoid.
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Page 22: Electrical Connector
Released Manual 35091 GSOV80 Gas Shutoff Valve Electrical Connector There is no regular maintenance required on the electrical connector. The electrical connector can be replaced in the field if necessary. For more details read Woodward manual CMM-03012. Woodward... -
Page 23: Chapter 3. Principles Of Operation
Released Manual 35091 GSOV80 Gas Shutoff Valve Chapter 3. Principles of Operation Valve Open To open the valve, follow the steps below: 1. Energize the solenoid with the appropriate voltage. 2. The three-way solenoid connects actuation air pressure to the control land of the second stage piston. -
Page 24: Valve Closed
Released Manual 35091 GSOV80 Gas Shutoff Valve Valve Closed To close the valve, follow the steps below: 1. De-energize the solenoid. 2. The three-way solenoid connects the pressure on the control land of the second stage piston to the vent. -
Page 25: Failsafe Principle
GSOV80 Gas Shutoff Valve Failsafe Principle The GSOV80 operates with three stages of valving. This design is necessary to ensure the high speed fuel isolation and maintain the low pressure drop/high flow rate valve. Each of the three stages is spring loaded with the force needed to ensure valve closure. -
Page 26: Valve Effective Area (Acd)
Released Manual 35091 GSOV80 Gas Shutoff Valve Valve Effective Area (ACd) Gas Fuel ���� ������ = 1+�� �� ∗ ���� ��2 ��2 �� �� 3955.289 ∗ ��1 ∗ √ [ ] ∗ [( ��1 ) − ( ��1 ) ( �� − 1 ) ∗ �� ∗ ��... -
Page 27: Chapter 4. Safety Management
IEC61508. Reference SIL certificate WOO 1706093 C001. The functional safety requirement in this manual applies to all GSOV80 Gas Shutoff Valves. The SIL rated valves will have a DU FIT of less than 1415 for Tight Shutoff and 853 for Full Stroke versions. Contact Woodward for a copy of the SIL certificate. -
Page 28: Limitations
“Proof Test” section below. The frequency of the proof test is determined by the overall safety system design, of which the GSOV80 is part of the safety system. The safety numbers are given in the following sections to help the system integrator determine the appropriate test interval. -
Page 29: Functional Testing After Initial Installation
Functional Testing after Initial Installation A functional test of the GSOV80 is required prior to use in a safety system. This should be done as part of the overall safety system installation check. For guidance on the functional test, see the Proof Test procedure below. -
Page 30: Chapter 5. Product Support And Service Options
Service Distributor or the OEM or Packager of the equipment system, based on the standard Woodward Product and Service Warranty (Woodward North American Terms and Conditions of Sale 5-09-0690) that is in effect at the time the product is originally shipped from Woodward or a service is performed: •... -
Page 31: Returning Equipment For Repair
All repair work carries the standard Woodward service warranty (Woodward North American Terms and Conditions of Sale 5-09-0690) on replaced parts and labor. -
Page 32: Replacement Parts
• The unit serial number, which is also on the nameplate Engineering Services Woodward offers various Engineering Services for our products. For these services, you can contact us by telephone, by email, or through the Woodward website. • Technical Support •... -
Page 33: Technical Assistance
GSOV80 Gas Shutoff Valve Technical Assistance If you need to contact technical assistance, you will need to provide the following information. Please write it down here before contacting the Engine OEM, the Packager, a Woodward Business Partner, or the Woodward factory: General... -
Page 34: Revision History
Released Manual 35091 GSOV80 Gas Shutoff Valve Revision History Revision B— • Removed CE line for PED in Regulatory Compliance section • Replaced EU DoCs Revision A— • Updated the PED and added RoHS Directives in the Regulatory Compliance section •... -
Page 35: Declarations
Released Manual 35091 GSOV80 Gas Shutoff Valve Declarations Woodward... - Page 36 Released Manual 35091 GSOV80 Gas Shutoff Valve Woodward...
- Page 37 Email and Website—www.woodward.com Woodward has company-owned plants, subsidiaries, and branches, as well as authorized distributors and other authorized service and sales facilities throughout the world. Complete address / phone / fax / email information for all locations is available on our website.
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