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Summary of Contents for Woodward LSOV25
- Page 1 Released Product Manual 40148 (Revision AB, 03/2023) Original Instructions Liquid Shutoff Valve 25 (LSOV25) 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
4. S LSOV25 ................30 HAPTER AFETY PERATIONS FOR Product Variations Certified ........................30 SFF (Safe Failure Fraction) for the LSOV25 ....................30 Response Time Data ..........................31 Limitations ..............................31 Management of Functional Safety ......................31 ... - Page 4 Figure 2-4b. Outline Drawing LSOV25 with Dual Proximity Switch and Dual Solenoid ......22 Figure 2-5a. Outline Drawing LSOV25, Stainless Steel, 24 VDC, with Single Proximity Switch ....23 Figure 2-5b. Outline Drawing LSOV25, Stainless Steel, 24 VDC, with Single Proximity Switch ....24 ...
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Page 5: Warnings And Notices
Be prepared to make an emergency shutdown when starting the engine, turbine, or other type of prime mover, to protect against runaway or overspeed with possible personal injury, loss of life, or property damage. Start-up Woodward... -
Page 6: Electrostatic Discharge Awareness
Do not touch the components or conductors on a printed circuit board with your hands or with conductive devices. To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715 , Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules. -
Page 7: Regulatory Compliance
See Declaration of Conformity for clarification. Other UKCA Compliance Compliance with the following UKCA regulations or standards does not qualify this product for application of the UKCA Marking: Machinery: S.I. 2008 No. 1597: Supply of Machinery (Safety) Regulations 2008 Woodward... -
Page 8: Special Conditions For Safe Use
Zone 1, Category 2 or Zone 2, Category 3 wiring methods as applicable, and in accordance with the authority having jurisdiction. The LSOV25 must be installed upright (with the electrical enclosure on top) to maintain an IP54 rating. Compliance with the Machinery Directive 2006/42/EC noise measurement and mitigation requirements is the responsibility of the manufacturer of the machinery into which this product is incorporated. - Page 9 Liquid Shutoff Valve 25 Conduit seals must be installed within 18 inches (457 mm) of the conduit entry when the LSOV25 is used in Division 1 or Zone 1 hazardous locations. A sealing device, such as a stopping box with setting compound,...
- Page 10 The dimensions of flameproof joints are stated on Woodard drawing 9989-7010, Revision A. Contact Woodward for more information. When replacing fasteners on the electrical enclosure or cover, use fasteners with class 12.9 (aluminum versions), or class A4-70 (316...
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Page 11: Chapter 1. General Information
General Information Shutoff Valve Description The Woodward High Speed Liquid Fuel Shutoff Valve is a three-way, two-stage valve, designed to provide fuel bypass in 0.100 second or less after termination of the solenoid current. The valve is designed for fail-safe operation. Loss or termination of the electrical signal will result in all fuel delivery to the valve being bypassed to the return system. - Page 12 Other fuels such as ethanol or methanol may be acceptable with internal seal compound substitutions, but such substitutions are outside of the scope of the stated regulatory compliance. Contact Woodward for these and other special fuel applications. Fuel Viscosity: Fuel viscosity must be between 0.5 cSt and 12.0 cSt...
- Page 13 Released Manual 40148 Liquid Shutoff Valve 25 Proof: 12 411 kPa (1800 psig) Burst: 41 370 kPa (6000 psig) Maximum Bypass Pressure: 1724 kPa (250 psig) Cracking Pressure: 690 kPa (100 psig) above reference pressure (bypass) Woodward...
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Page 14: Chapter 2. Installation
Conduit seals must be installed within 18 inches (457 mm) of the conduit entry when the LSOV25 is used in Division 1 or Zone 1 hazardous locations. A sealing device such as a stopping box with a setting compound... - Page 15 If a loose insert is suspected, contact Woodward for repairs. Les trous filetés des fixations critiques du boîtier antidéflagrant utilisent des inserts filetés.
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Page 16: Mounting
The LSOV25 must be installed upright (with the electrical enclosure on top) to maintain the IP54 rating. 1.625-12 UNF (-20) straight thread ports are provided for inlet, bypass, and outlet pipe connections. -
Page 17: Fuel Vent Port
LSOV25 joint surfaces, inspect thoroughly. Although there are functions in the LSOV25 that are not directly safety related, perform a functional test after the wiring and installation are complete. The functional check requires that liquid fuel supply flow is present at the LSOV25 valve inlet port. - Page 18 (if applicable) and a change in fuel flow from Bypass to Outlet. De- energize the solenoid and verify the valve closes as indicated by the position switch and a change in fuel flow from Outlet to Bypass. Woodward...
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Page 19: Figure 2-2A. Outline Drawing Lsov25 With Proximity Switch
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-2a. Outline Drawing LSOV25 with Proximity Switch Woodward... -
Page 20: Figure 2-2B. Outline Drawing Lsov25 With Proximity Switch
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-2b. Outline Drawing LSOV25 with Proximity Switch Woodward... -
Page 21: Figure 2-3A. Outline Drawing Lsov25, 24 Vdc/125 Vdc, 0.5 Npt Conduit
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-3a. Outline Drawing LSOV25, 24 VDC/125 VDC, 0.5 NPT Conduit Woodward... -
Page 22: Figure 2-3B. Outline Drawing Lsov25, 24 Vdc/125 Vdc, 0.5 Npt Conduit
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-3b. Outline Drawing LSOV25, 24 VDC/125 VDC, 0.5 NPT Conduit Woodward... -
Page 23: Figure 2-4A. Outline Drawing Lsov25 With Dual Proximity Switch And Dual Solenoid
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-4a. Outline Drawing LSOV25 with Dual Proximity Switch and Dual Solenoid Woodward... -
Page 24: Figure 2-4B. Outline Drawing Lsov25 With Dual Proximity Switch And Dual Solenoid
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-4b. Outline Drawing LSOV25 with Dual Proximity Switch and Dual Solenoid Woodward... -
Page 25: Figure 2-5A. Outline Drawing Lsov25, Stainless Steel, 24 Vdc, With Single Proximity Switch
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-5a. Outline Drawing LSOV25, Stainless Steel, 24 VDC, with Single Proximity Switch Woodward... -
Page 26: Figure 2-5B. Outline Drawing Lsov25, Stainless Steel, 24 Vdc, With Single Proximity Switch
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-5b. Outline Drawing LSOV25, Stainless Steel, 24 VDC, with Single Proximity Switch Woodward... -
Page 27: Figure 2-6A. Outline Drawing Lsov25, M20-1.5 Conduit
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-6a. Outline Drawing LSOV25, M20-1.5 Conduit Woodward... -
Page 28: Figure 2-6B. Outline Drawing Lsov25, M20-1.5 Conduit
Released Manual 40148 Liquid Shutoff Valve 25 Figure 2-6b. Outline Drawing LSOV25, M20-1.5 Conduit Woodward... -
Page 29: Maintenance
1. Verify that the solenoid operator is de-energized and the valve is closed as indicated by the position switch (if applicable). 2. Verify that liquid fuel supply flow is present at the LSOV25 valve Inlet port. Verify that fuel flow is from Inlet to Bypass. - Page 30 Damage to sealing surfaces may result in moisture ingress, fire, or explosion. Clean the surface with rubbing alcohol if necessary. To ensure there is no damage or contamination to the LSOV25 joint surfaces, inspect thoroughly. FREEZING HAZARD: Fluid supply lines should be thoroughly flushed prior to storage of the LSOV25 to prevent freezing damage.
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Page 31: Chapter 3. Principles Of Operation
Polarity is unimportant in the DC operated valve. The maximum power consumption of the valve is 25 W. A bipolar Zener diode is provided in the solenoid wiring to prevent voltage spikes during operation and to prevent the generation of electromagnetic interference (EMI). Woodward... -
Page 32: Chapter 4. Safety Operations For Lsov25
Fuel flow to the engine is stopped when the valve is closed (de-energized), with zero leakage from the inlet to the outlet. The fuel inlet flow to the LSOV25 is directed to Bypass which leads back to the fuel pump or fuel reservoir. -
Page 33: Response Time Data
Functional Testing after Initial Installation A functional test of the LSOV25 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 procedure below. -
Page 34: Functional Testing After Changes
1. Verify that the solenoid operator is de-energized and the valve is closed as indicated by the position switch (if applicable). 2. Verify that liquid fuel supply flow is present at the LSOV25 valve Inlet port. Verify that fuel flow is from Inlet to Bypass. -
Page 35: Chapter 5. Product Support And Service Options
An Authorized Independent Service Facility (AISF) provides authorized service that includes repairs, repair parts, and warranty service on Woodward's behalf. Service (not new unit sales) is an AISF's primary mission. A current list of Woodward Business Partners is available at www.woodward.com/local-partner... -
Page 36: Returning Equipment For Repair
All repair work carries the standard Woodward service warranty (Woodward Product and Service Warranty 5-01-1205) on replaced parts and labor. -
Page 37: 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 38: Technical Assistance
Liquid Shutoff Valve 25 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 39: Revision History
Added additional content and new warning and notice boxed to Maintenance section Removed Cutaway drawings in Figures 3-1 and 3-2 Added new part numbers to Table 4-1 Added new DOC and DOI Changes in Revision T— Added Other International Compliance to Regulatory Compliance section Woodward... - Page 40 Updated Regulatory Compliance information Updated DOC and DOI Inserted SIL2 certification information Inserted Chapter 4 Safety Operations for LSOV25 Changes in Revision P— Updated Regulatory Compliance information Changes in Revision N— Updated fuel particulate concentration to 2.64 mg/L Changes in Revision M—...
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Page 41: Declarations
Released Manual 40148 Liquid Shutoff Valve 25 Declarations Woodward... - Page 42 Released Manual 40148 Liquid Shutoff Valve 25 Woodward...
- Page 43 Released Manual 40148 Liquid Shutoff Valve 25 Woodward...
- Page 44 Released Manual 40148 Liquid Shutoff Valve 25 Woodward...
- Page 45 Released Manual 40148 Liquid Shutoff Valve 25 This Page Intentionally Left Blank Woodward...
- Page 46 Released Manual 40148 Liquid Shutoff Valve 25 This Page Intentionally Left Blank Woodward...
- Page 47 Released Manual 40148 Liquid Shutoff Valve 25 This Page Intentionally Left Blank Woodward...
- Page 48 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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