Diesel Engine Air Intake Shutoff Valves

Transcription

1 Diesel Engine Air Intake Shutoff Valves Model RDS2 Swing Gate Valve Overview If flammable gas or vapor is present in the atmosphere surrounding a diesel engine, it can be ingested into the engine and become an ungoverned fuel supply. This ungoverned fuel can result in runaway engine overspeed potentially leading to dangerous mechanical failure or explosion. The Roda Deaco RDS2 Swing Gate Valve is a positive spring actuated air intake shutoff valve that provides emergency overspeed shutdown of a diesel engine. The RDS2 Swing Gate Valve can be triggered to close which starves the engine of air and shuts down the engine. RDS2 Mechanical Actuated Valve Typical Applications Drilling rigs (onshore & offshore) Drilling support equipment Well servicing equipment Refinery support equipment Bulk haulers and tankers Generator sets Mining equipment Construction equipment Emergency response vehicles and equipment Aircraft support equipment Work boats Barges Agriculture equipment Key Features and Benefits Easy to install and maintain Lightweight, compact design Corrosion resistant aluminum, stainless steel and brass construction Used in manual and automatic actuation systems: - Electric - Pneumatic - Electric/pneumatic - Mechanical Wide variety of installation kits for most installations DS-RO-RDS Rev3

2 Operation The Model RDS2 is a compact swing gate design air intake shutoff valve available with electric, pneumatic, or mechanical actuation. Actuation of the Model RDS2 closes the valve s sealing element which shuts off intake air flow into the engine. The RDS2 can be used in fully automatic or manual shutdown systems. Specification Standard materials: Valve body Aluminum Gate arm Sealing element Seals Pneumatic cylinder Solenoid housing Plated steel Floating phenolic disc Buna N/Silicon standard Aluminum, stainless steel, and brass Plated steel Net weights Manual actuated 5.5 lbs 2.5 kg (incl actuator): Pneumatic actuated 5.5 lbs 2.5 kg Solenoid actuated 7.5 lbs 3.4 kg Intake air temperature range: Standard valve -40 F to 221 F -40 C to 105 C Ambient air temperature range: Standard valve -40 F to 257 F -40 C to 125 C Electric solenoid Standard solenoid actuation: Nominal 12 VDC power requirement 70.5 amp pull in 0.9 amp hold Nominal 24 VDC power requirement 36.4 amp pull in 0.5 amp hold Cycle rate Refer to the Roda Deaco System Selection Guide to determine the appropriate system and actuation for your application. 6 activations per minute Pneumatic cylinder Recommended pressure 90 psi psi 6.2 bar bar actuation: Minimum pressure 80 psi 5.5 bar Maximum pressure 150 psi 10.3 bar Manual actuation: Mechanical pull to release 28 lbs 125 Newtons page 2

3 Valve Selection The RDS2 Swing Gate Valve can be used in applications where the air intake line is 1 1 /2 to 4 inches ( mm) in diameter. The RDS2 Swing Gate Valve can be mounted in vertical or horizontal orientations and airflow through the valve can be in either direction. When specifying the valve note the clearance requirements for the valve with the geometry of the engine and intake line for your application. Note that the valve reset handle is used only on the mechanical and pneumatic actuated valves. The reset handle is not required on the solenoid actuated valve. Front view of valve To accommodate the installation requirements for the wide variety of diesel engine applications, the size and attachment types on the valve body and the valve cover are specified separately. The valve attachments are available in several styles including: hose, O-ring, V-clamp, flange, and engine specific adapters. Profile view of valve Valve Size Standard Attachment Sizes 1 1 /2 38 mm 1 5 /8 41 mm 1 3 /4 44 mm 1 7 /8 48 mm 2 51 mm 2 1 /4 57 mm 2 3 /8 60 mm 2 1 /2 64 mm 2 5 /8 67 mm 2 3 /4 70 mm 2 7 /8 73 mm The RDS2 Swing Gate Valve is available in several standard sizes for intake air lines ranging from 1 1 /2 to 2 7 /8 inches (38-73 mm) in diameter. Standard sizes for hose, V-clamp, and O-ring attachments are listed to the left. Additional sizes are available to meet specific application requirements. page 3

4 Valve Selection Continued Valve Attachment Mechanism The hose attachment is the standard attachment mechanism. However, additional attachments are available including O-Ring, V-Clamp, Flange, and engine specific adapters. Examples are shown below. To accommodate the installation requirements for the wide variety of diesel engine applications, the size and connection types on the valve body and the valve cover are specified separately. Hose Attachment Uses sections of flexible hose and band clamps to attach the valve to intake line. Standard Hose x Standard Hose Extended Depth Hose x Extended Depth Hose V-Clamp Attachment Heavy duty V-style ring clamp used to clamp valve to metal intake lines. Several types of V-clamp connections are available. Male V Clamp x Female V Clamp Flat Face V Clamp x Standard Hose Female V Clamp x Male Notched V Clamp O-Ring Attachment Space saving single or dual O-Ring attachments are available. O-Rings are used to seal rigid air intake line connections. Exterior Single O-Ring x Exterior Single O-Ring Interior Dual O-Ring x Interior Dual O-Ring Dual O-Ring x O-Ring Receiver Cup Flange Attachment Flange attachments on the valve are available to secure the valve to the engine. Flange x Flange Interior Dual O-Ring x Flange Special Attachments Additional attachments are available on request. page 4

5 Valve Features Selection Valve Actuation Type The RDS2 Diesel Engine Air Intake Shutoff Valve valve has three actuation methods: pneumatic, electric and mechanical. Please refer to the Roda Deaco System Selection Guide for complete descriptions of the systems to help determine the proper actuation required for your application. Electric Actuation Electric Actuation The electrically actuated RDS2 is an energize-toclose valve. It operates using either 12 VDC or 24 VDC power. The valve will automatically reset after the engine stops and power is removed. The electrically actuated RDS2 valve is designed for use in the systems indicated below: Automatic Electric Overspeed RPM Detection with Manual Override Manual Electric System Pneumatic Actuation Pneumatic Actuation The pneumatically actuated RDS2 is designed for mechanical latching in the open position (engine run) and air pressure actuated closure. The pneumatically actuated RDS2 is reset manually. The pneumatically actuated RDS2 valve is designed for use in the systems indicated below: Automatic Electric Overspeed RPM Detection with Pneumatic Actuation Manual Electric/Pneumatic System Manual Pneumatic System Mechanical Actuation Mechanical Actuation The mechanically actuated RDS2 can be operated by using either a remote cable pull system or by direct operator action on the valve. The mechanically actuated RDS2 is reset manually. The valve is designed for use in the systems indicated below: Remote Cable Actuated System Direct Actuated Valve page 5

6 Valve Features Selection Continued Valve Intake Air Temperature Rating Temperature range Standard range -40 F to 221 F -40 C to 105 C The RDS2 Swing Gate Valve can be used on intake lines of naturally aspirated or turbo-charged engines where air intake line temperatures do not exceed 221 F (105 C) at the valve. Valve Features Options The RDS2 Swing Gate Valve has two options that can be added individually or in combination to meet additional requirements for applications. Pneumatic Reset A pneumatic cylinder can be added to the valve to provide remote reset capability for pneumatically and mechanically actuated valves. Pneumatic Reset page 6

7 Actuation Kits Actuation kits are provided with each system sold. The actuation kit contains hardware required to properly install and integrate the specified shutdown system into the diesel engine application. The kits, specific for each type of system and application, can include items such as: Electric Actuation Kit Electric Pneumatic Actuation Kit Voltage control module Relays Circuit breaker Toggle switch Cable with T-handle Manual Pneumatic Actuation Kit Manual Pull Cable Actuation Kit Installation Kits Simple Hose Kits Installation kits are also provided with each system sold. The installation kit contains the hardware required to facilitate the installation of the Air Intake Shutoff Valve into a diesel engine air intake line. Roda Deaco has hundreds of different installation kits designed to meet specific engine model and application requirements. The kits can range from hose with clamps to custom intake pipes, elbows, flanges, brackets, etc. Single Elbow Kit with Multiple Hose Double Elbow Kit Complex 3 Elbow Kit page 7

8 Dimensions Electrically Actuated Valve Clearance Dimensions A* B C D E B (38) (89) (32) (108) (89) A C 1.00 (25) 3.50 (89) 4.50 (114) D 9.25 (235) E 6.25 (159) (44) (51) (57) (64) (70) (86) (64) (80) (76) (73) (29) (25) (22) (19) (16) (105) (102) (98) (95) (92) (86) (64) (80) (76) (73) *Hose Attachment Size Inches (mm) Dimension in inches (mm) Pneumatically and Mechanically Actuated Valves 8.75 (222) Clearance Dimensions F A* B C D E F (38) 5.25 (133) (32) (108) (38) (146) (44) (130) (29) (105) (35) (143) B (51) (127) (25) (102) (32) (140) 8.00 (203) (57) (64) (124) 4.75 (121) (22) (19) (98) (95) (29) (25) (137) (133) A A (70) (117) (16) (92) (22) (130) C *Hose Attachment Size Inches (mm) 1.00 (25) 3.50 (89) D (184) E Dimension in inches (mm) page 8

9 How to Order Please submit this form by or fax: Fax: (780) ORDERING INFORMATION SHEET Customer Information Application Contact Billing Contact Customer Name Customer Name Customer Title Customer Title Contact Number Contact Number Fax Number Fax Number Company Name Company Name Shipping Address Billing Address Note that many engines are available in different configurations in different equipment. Some examples include: turbocharged, turbocharged with air to air intercooler, turbocharged with a liquid aftercooler on the engine, twin turbocharger arrangements and naturally aspirated engines. Application Information Please fill out this form to the best of your ability. Photos welcome Application Information Stationary Mobil Marine Equipment Application Quantity for this application Equipment Name Equipment Model Engine Information Make Model Year Serial/VIN No. Turbocharger and Intake Air Cooling Information Intercooler (Air to Air cooler mounted with engine radiator) No air cooling after turbocharger Aftercooler (liquid cooler in the engine) No turbocharger the engine is natural aspirated Air Intake Line Information: The air intake shutoff valve is usually installed at the inlet to the engine. Please provide the air inlet line information requested below. Number of Inlet lines Turbocharger Boost pressure Intake line air temperature (if known) Inlet Line Material: Metal Pipe: outside diameter Rubber Hose: inside Diameter Inlet Line or Elbow Part Number: Attachment mechanism of Air Intake Line to the inlet to the engine: Hose Standard Extended V-Clamp Flat face Female Male Notched O-Ring Internal External Receiver Cup Single O-ring Dual O-Ring Flange Round Square Trapezoid Other Number of Bolts Other (Please specify and include photos) Engine Overspeed Safety System Information Refer to the Roda Deaco System Selection Guide for information about the system listed below. Automatic RPM Overspeed Detection and Shutdown Systems with manual Override Electronic RPM Detection with Electric Actuated Valve and Electronic RPM Detection with Pneumatic Acutated Valve and Manual Override Manual Override System Voltage: 12 vdc 24 vdc System Voltage: 12 vdc 24 vdc Manual Actuated Systems and Valves Electric Actuation System Electric Switch with Pneumatic Valve System Voltage: 12 vdc 24 vdc System Voltage: 12 vdc 24 vdc Cable System Pneumatic System Direct Manual Valve Additional Valve Features Proximity Switch Valve Position Indication (Available on Pneumatic Reset (Available on pneumatic and mechanical RDS2, RDS3, and RDS5 models) actuated valves) Roda Deaco has a broad array of fully automatic and manual shutoff systems. The systems have sensors, switches, valves, actuation kits and hundreds of different installation kits available to facilitate installation of systems. When ordering, please complete the Roda Deaco Ordering Information form shown on the left. The form is available electronically on the Roda Deaco web site, by contacting your local representative or contacting Roda Deaco Customer Service. See the back of this datasheet for contact information. Roda Deaco Valve Street Edmonton, Alberta Canada T6N 1K4 page 9

10 Valve Model Code Valve Body Selection Valve Feature Selection Example Code RDS HA 2250 HA - E1 L D Code Description Valve Family RDS2 Valve Body Side Attachment Size (additional sizes available) Valve Body Side Attachment Mechanism (additional attachments available) Valve Cover Side Attachment Size (additional sizes available) Valve Cover Side Attachment Mechanism (additional attachments available) Valve Actuation Type Inlet Air Line Temperature Valve Options Type RDS2 Swing Gate Valve Body Attachment Outer Diameter Size - inches /2 (38 mm) /8 (41 mm) /4 (44 mm) /8 (48 mm) (51 mm) /4 (57 mm) /8 (60 mm) /2 (64 mm) /8 (67 mm) /4 (70 mm) /8 (73 mm) Body Attachment Mechanism HA Standard hose connection IA O-Ring internal single UA O-Ring internal dual XA O-Ring external single LA O-Ring external dual FA O-Ring receiver fem VA V-clamp EA V-clamp female MA V-clamp male Cover Attachment Outer Diameter Size - inches /2 (38 mm) /8 (41 mm) /4 (44 mm) /8 (48 mm) (51 mm) /4 (57 mm) /8 (60 mm) /2 (64 mm) /8 (67 mm) /4 (70 mm) /8 (73 mm) Cover Attachment Mechanism HA Standard hose connection IA O-Ring internal single UA O-Ring internal dual XA O-Ring external single LA O-Ring external dual FA O-Ring receiver fem VA V-clamp EA V-clamp female MA V-clamp male Actuator Type Mech M0 Mechanical Pneu PC Pneumatic Air Pressure to Close Elec E1 12 volt solenoid E2 24 volt solenoid Inlet Air Temperature L -40ºF - 221ºF (-40ºC - 105ºC) Options A No Options B Pneumatic Reset (Pneumatic and Mechanical Actuator) C Squared-off body E Pneumatic Reset and Squared-off Body (Pneumatic and Mechanical) The contents of this publication are presented for informational purposes. While every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. The purchaser and end user are responsible for analyzing all aspects of their application and using their own judgment in the final selection, use, and maintenance of the system and components. The purchaser and end user are also responsible for assuring that all performance, safety and warning requirements of the application are met. Roda Deaco, AMOT, Roper Industries, or any of their affiliated entities assume no responsibility for the selection, use, or maintenance of any product. page 10

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