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diagram of sprinkler valve: Impact of Wet-Pipe Fire Sprinkler Systems on Drinking Water Quality Steven J. Duranceau, Jacquline Foster (V.), Jack Poole, 1998 |
diagram of sprinkler valve: Piping and Instrumentation Diagram Avinashkumar Vinodkumar Karre, 2023-07-04 The book provides stepwise guidelines for the development of Piping and Instrumentation Diagrams for all different areas of chemical engineering such as pumps, heat exchangers, columns, compressors, vessels, instrumentation, control logic, piping, valves, notes, equipment design, and flare systems. It also provides guidance to commonly used methodology to mark-up each subsystem mentioned earlier and discusses common tools used in the industry. |
diagram of sprinkler valve: Industrial Fire Protection Handbook R. Craig Schroll, 2016-04-19 Fundamentally, fire prevention and control refer to systems and practices that increase a facility's ability to avoid fires, limit the development and spread of fires, and rapidly and effectively control fires. Changing safety codes and regulations along with recent technological advances have rendered the first edition of this popular handbook som |
diagram of sprinkler valve: A Guide to Golf Course Irrigation System Design and Drainage Edward Pira, 1997-01-15 A Guide to Golf Course Irrigation System Design and Drainage details every phase of an irrigation program - from the system design to construction, from scheduling to operation, and much more. It also covers the fundamentals of drainage design and installation. Turfgrass managers and golf course superintendents will refer to this handy book often to plan and implement effective irrigation systems, ensure appropriate capacity, easy installation, and practical operation and maintenance. |
diagram of sprinkler valve: , |
diagram of sprinkler valve: Handbook for Engine Officers , |
diagram of sprinkler valve: Encyclopaedia of Occupational Health and Safety International Labour Office, 1998 Intended as a resource for those who have responsibilities to safeguard workers' health and safety, especially in developing countries. Covers the fields of toxicology, occupational hygiene, occupational cancer, occupational diseases of agricultural workers, occupational safety, psycho- social problems and institutions and organizations active in the field of occupational health and safety. |
diagram of sprinkler valve: Technical Report Tennessee Valley Authority, 1959 |
diagram of sprinkler valve: Automatic Sprinkler & Standpipe Systems John L. Bryan, 1976 |
diagram of sprinkler valve: Marine Fire Prevention, Firefighting and Fire Safety Maritime Training Advisory Board (U.S.), 1994 A comprehensive training and reference manual used as a textbook in maritime institutions. Addresses the prevention, control, and extinguishing of fires aboard commercial vessels and on offshore drilling rigs. Includes chapters on emergency procedures and equipment as well as case studies of past shipboard fires. Generously illustrated with drawings, photos, diagrams, tables, and checklists. Recommended reading for all maritime personnel and kept both in shipboard reference libraries and in the offices of maritime executives. |
diagram of sprinkler valve: Hot and Cold Water Supply BSI (The British Standards Institution), Robert H. Garrett, 2008-10-13 Provides a highly illustrated guide for designers, installers and contractors working on hot and cold water supplies. The book takes account of the 1999 Water Regulations and British Standard BS 6700. The new edition takes account of the latest requirements of the Building Regulations and features a new section on sprinkler systems. |
diagram of sprinkler valve: Audel Millwrights and Mechanics Guide Thomas B. Davis, Carl A. Nelson, 2004-01-02 The hardcover, fully updated edition of the only multi-craft trade guide Respected by generations of skilled workers, Audel Millwright's and Mechanic's Guide is the only trade manual to cover maintenance and troubleshooting for all the mechanical trades in a single volume. Now available in hardcover, it covers the newest equipment on shop floors as well as older machinery, sometimes more than 30 years old, for which little maintenance and repair information remains available. Millwrights, mechanics, machinists, carpenters, pipe fitters, electricians, engineers, and those who supervise them will find this book invaluable. The only hardcover maintenance and repair manual to cover all the mechanical trades in one guide This updated guide covers new industrial machinery as well as 30-year-old equipment for which little information can be found Essential for those who repair machinery as well as machinists, carpenters, pipe fitters, electricians, millwrights, mechanics, engineers, mechanical technicians, industrial maintenance managers, and construction tradespeople This hardcover edition of Audel Millwright's and Mechanic's Guide is as valuable to today's skilled workers as previous editions were to their fathers and grandfathers. |
diagram of sprinkler valve: Maritime English - Handbook for Engine Officers , |
diagram of sprinkler valve: Fire Protection Robert Burke, 2007-11-06 The modern definition of firefighter no longer meansputting the wet stuff on the red stuff. Emergency responders answer incidents ranging from fire alarm activations to elevator rescues and medical emergencies more often than full-blown fires. Consequently, responders increasingly interface with a wide array of building systems. Underscoring the |
diagram of sprinkler valve: Marine Auxiliary Machinery H D MCGEORGE, 1998-10-20 The seventh edition of this classic marine textbook is now available for the first time in paperback. This highly respected book instructs both students and sea-going engineers in the operation, care and maintenance of the auxiliary machinery and apparatus on board ship and is essential reading for marine engineers preparing for British Certificates of Competency examinations, US Licenses and similar qualifications elsewhere. Designed for ease of use, the detailed treatment and practical orientation of the subject matter is presented in a very accessible manner. The inclusion of suggestions for further reading at the end of each chapter is of particular use to students and all those interested in any related titles. Alongside this, there is also sufficient theoretical background to enable the reader to fully understand the principles involved. These various features allow the book to also serve as a useful reference work for engineers in the shipbuilding and equipment manufacturing industries, as well as all sea-going engineers. |
diagram of sprinkler valve: Operation of Fire Protection Systems Arthur E. Cote, 2003 Fire Science (FESHE) |
diagram of sprinkler valve: Health and Safety: Risk Management Tony Boyle, 2015-09-14 This is a reprint of 978-0-901357-41-0 Health and Safety: risk management is the clearest and most comprehensive book on risk management available today. The fully revised and redesigned third edition incorporates the latest developments in legislation, best practice, British Standards and qualification syllabuses. This authoritative treatment of risk management is essential reading for students working towards degrees, diplomas and post graduate or vocational qualifications in health and safety. Experienced health and safety professionals and managers with health and safety responsibilities will find it invaluable as a desk reference. |
diagram of sprinkler valve: Central Valley Project, West San Joaquin Division, San Luis Unit, California: Dos Amigos pumping plant and Pleasant Valley pumping plant: design United States. Bureau of Reclamation, 1974 |
diagram of sprinkler valve: Air Conditioning, Heating and Ventilating , 1917 |
diagram of sprinkler valve: Design of TVA Projects Tennessee Valley Authority, 1952 |
diagram of sprinkler valve: Lloyd’s Register Technical Association Session 1996-1997 Lloyd's Register Foundation, 1996-01-01 The Lloyd’s Register Technical Association (LRTA) was established in 1920 with the primary objective of sharing technical expertise and knowledge within Lloyd’s Register. Publications have consistently been released on a yearly basis, with a brief interruption between 1938 and 1946. These publications serve as a key reference point for best practices and were initially reserved for internal use to maximise LR’s competitive advantage. Today, the LRTA takes a fresh approach, focusing on collaboration by combining professional expertise from across LRF & Group to ensure a frequent output of fresh perspectives and relevant content. The LRTA has evolved into a Group-wide initiative that identifies, captures, and shares knowledge spanning various business streams and functions. To support this modern approach, the LRTA has adopted a new structure featuring representatives and senior governance across the business streams and the LR Foundation. The Lloyd's Register Technical Association Papers should be seen as historical documents representing earlier viewpoints and are not reflective of current thinking and perspectives by the current LR Technical Association. The Lloyd's Register Staff Association (LRSA) changed its name to the Lloyd's Register Technical Association (LRTA) in 1973. |
diagram of sprinkler valve: Fire Protection Supervisor (AFSC 57170) Robert E. Raymond, 1984 |
diagram of sprinkler valve: Design of TVA Projects: Mechanical design of hydro plants , 1952 |
diagram of sprinkler valve: Engineering & Building Record and the Sanitary Engineer , 1890 |
diagram of sprinkler valve: System Safety for the 21st Century Richard A. Stephans, 2022-07-08 System Safety for the 21st Century Explore an authoritative and complete exploration of basic and advanced concepts in system safety engineering The Second Edition of System Safety for the 21st Century delivers an authoritative primer on the identification, evaluation, analysis, and control of hazards to people, components, sub-systems, systems, processes, and facilities. The book offers readers a complete discussion on techniques within system safety, the discipline on process safety, as well as a comprehensive treatment on professionalism within the safety industry. This new edition applies the concepts of system safety to medical disciplines and medical devices, offering readers the potential to have a significantly positive impact on the standing of American medical safety in the world. The latest edition also includes: A brand-new chapter on the risk management with current international and U.S. government standards New material on process safety including EPA and OSHA implementation and external reviews An Instructor Solutions Manual that includes course content and 30 chapters of review questions and answers Further clarifications on difficult concepts from the First Edition with updated appendices and references Relevant to academia, industry, and government, System Safety for the 21st Century is an essential resource for anyone studying or implementing and managing proactive hazard identification and risk control techniques and procedures. |
diagram of sprinkler valve: Mechanical and Electrical Equipment for Buildings Walter T. Grondzik, Alison G. Kwok, 2014-10-06 The definitive guide to environmental control systems, updated with emerging technology and trends The Interactive Resource Center is an online learning environment where instructors and students can access the tools they need to make efficient use of their time, while reinforcing and assessing their understanding of key concepts for successful understanding of the course. An access card with redemption code for the online Interactive Resource Center is included with all new, print copies or can be purchased separately. (***If you rent or purchase a used book with an access code, the access code may have been redeemed previously and you may have to purchase a new access code ISBN: 978111899616-4). The online Interactive Resource Center contains resources tied to the book, such as: Interactive Animations Interactive Self-tests Interactive Flashcards Case Studies Respondus Testbank (instructors only) Instructor’s Manual (over 200 pages) including additional resources (Instructors only) Roadmap to the 12th Edition (Instructors only) Student Guide to the Textbook Mechanical and Electrical Equipment for Buildings, Twelfth Edition is the industry standard reference that comprehensively covers all aspects of building systems. With over 2,200 drawings and photographs, the book discusses basic theory, preliminary building design guidelines, and detailed design procedure for buildings of all sizes. The updated twelfth edition includes over 300 new illustrations, plus information on the latest design trends, codes, and technologies, while the companion website offers new interactive features including animations, additional case studies, quizzes, and more. Environmental control systems are the components of a building that keep occupants comfortable and help make the building work. Mechanical and Electrical Equipment for Buildings covers both active controls, like air conditioners and heaters, as well as passive controls like daylighting and natural ventilation. Because these systems comprise the entire energy use and costs of a building's life, the book stresses the importance of sustainability considerations during the design process, by both architects and builders. Authored by two leading green design educators, MEEB provides the most current information on low-energy architecture, including topics like: Context, comfort, and environmental resources Indoor air quality and thermal control Illumination, acoustics, and electricity Fire protection, signal systems, and transportation Occupant comfort and building usability are the most critical factors in the success of a building design, and with environmental concerns mounting, it's becoming more and more important to approach projects from a sustainable perspective from the very beginning. As the definitive guide to environmental control systems for over 75 years, Mechanical and Electrical Equipment for Buildings is a complete resource for students and professionals alike. |
diagram of sprinkler valve: Practical Power Plant Engineering Zark Bedalov, 2020-02-05 Practical Power Plant Engineering offers engineers, new to the profession, a guide to the methods of practical design, equipment selection and operation of power and heavy industrial plants as practiced by experienced engineers. The author—a noted expert on the topic—draws on decades of practical experience working in a number of industries with ever-changing technologies. This comprehensive book, written in 26 chapters, covers the electrical activities from plant design, development to commissioning. It is filled with descriptive examples, brief equipment data sheets, relay protection, engineering calculations, illustrations, and common-sense engineering approaches. The book explores the most relevant topics and reviews the industry standards and established engineering practices. For example, the author leads the reader through the application of MV switchgear, MV controllers, MCCs and distribution lines in building plant power distribution systems, including calculations of interrupting duty for breakers and contactors. The text also contains useful information on the various types of concentrated and photovoltaic solar plants as well as wind farms with DFIG turbines. This important book: • Explains why and how to select the proper ratings for electrical equipment for specific applications • Includes information on the critical requirements for designing power systems to meet the performance requirements • Presents tests of the electrical equipment that prove it is built to the required standards and will meet plant-specific operating requirements Written for both professional engineers early in their career and experienced engineers, Practical Power Plant Engineering is a must-have resource that offers the information needed to apply the concepts of power plant engineering in the real world. |
diagram of sprinkler valve: The Electrical Engineer , 1890 |
diagram of sprinkler valve: The Johnsonville Steam Plant Tennessee Valley Authority, 1959 The Johnsonville Steam Plant is the second steam-electric project to be built by TVA. The first-Watts Bar Steam Plant-was built as a part of TVA's first emergency program of the World War II period. Construction of the Johnsonville Steam Plant, with generating units of 125,000-kilowatt capability, began in May 1949. It was the first of seven large steam-electric projects constructed over a span of eight and a half years including the Korean War period. This mammoth building program resulted mainly from the increased power demands of the Atomic Energy Commission and other Federal defense agencies. Additional electric energy was required also by the expanding programs of private industry and the increased needs of commercial and domestic consumers in TVA's service area. |
diagram of sprinkler valve: The Design and Layout of Fire Sprinkler Systems Mark Bromann, 2001-04-05 Although effective fire sprinkler systems are crucial to public safety, for years, the designers of those systems had few published resources to reference and guide them through their design processes. The first edition of this book changed all that, and now The Design and Layout of Fire Sprinkler Systems Second Edition suits their needs even bette |
diagram of sprinkler valve: Fire Safety and Risk Management Fire Protection Association, 2014-10-24 This textbook is directly aligned to the NEBOSH National Certificate in Fire Safety and Risk Management, with each element of the syllabus explained in detail. Each chapter guides the student through the syllabus with references to legal frameworks and guidelines. Images, tables, case studies and key information are highlighted within the text to make learning more productive. Covering fire behaviour, safety, management, risk assessment, prevention and the changes to HSG65, the book can also be used as a daily reference by professionals. Written by experts in the field of fire safety Complete coverage that goes beyond the syllabus content making it a useful resource after study Illustrated throughout to enhance understanding |
diagram of sprinkler valve: Water Supply Byelaws Guide S.F. White, G.D. Mays, 2014-09-11 In February 1985 a Byelaws Guidance Panel{1) was formed by the United Kingdom Water Fittings Byelaws Scheme(2) to produce a Guide to Byelaws the aim being that it should: (a) assist water inspectors, manufacturers, architects, consultants, merchants, installers and consumers to understand byelaws based on the Model; (b) bring about uniformity of approach to byelaw enforcement throughout the UK; (c) be suitable for use as a training document; {d) be subject to continual review by the Panel to ensure its compliance with the latest requirements; (e) comply with byelaw guidance issued by the Department of the Environment; and (f) be based wherever possible on British Standards. 3. This Guide is intended to be applicable throughout the United Kingdom and includes a copy of each byelaw. |
diagram of sprinkler valve: Scientific American , 1890 |
diagram of sprinkler valve: Elementary Fire Engineering Handbook (4th Edition) , 2023-08-11 Please view original pages to see diagrams and images. |
diagram of sprinkler valve: National Institutes of Health Bulletin , 1936 |
diagram of sprinkler valve: Mechanical Design of Hydro Plants Tennessee Valley Authority, 1960 |
diagram of sprinkler valve: 7th International Conference on Computing, Control and Industrial Engineering (CCIE 2023) Yuriy S. Shmaliy, Anand Nayyar, 2023-07-24 This book collects selected aspects of recent advances and experiences, emerging technology trends that have positively impacted our world from operators, authorities, and associations from CCIE 2022, to help address the world’s advanced computing, control technology, information technology, artificial intelligence, machine learning, deep learning, and neural networks. Meanwhile, the topics included in the proceedings have high research value and present current insights, developments, and trends in computing, control, and industrial engineering. |
diagram of sprinkler valve: Public Health Service Publication , 1970 |
diagram of sprinkler valve: Basic Housing Inspection United States. Bureau of Community Environmental Management, 1970 |
diagram of sprinkler valve: Central Valley Project, West San Joaquin Division, San Luis Unit, California United States. Bureau of Reclamation, 1974 |
2.2-2.3 ON/OFF ONLY 2.4-2.7 MANUAL SELECTOR WITH
Solenoid DE-ENERGIZED: the valve will open when UPSTREAM pressure exceeds set point on pilot, then discharge water as required to maintain the pressure set point.
Easy, step-by-step, FREE SPRINKLER SYSTEM DESIGN …
Sprinkler ValVe SyStem inStruction manual
Once a location is selected, dig a hole in the ground deep enough so the top of the valve box will be flat and level with the surface. Check each fitting connection to make sure it is hand-tight. Note: …
UNDERSTANDING AND TROUBLESHOOTING VALVES - Star …
INTRODUCTION to VALVES: Irrigation devices directly controlling water flow to sprinkler heads are known as valves. The principle behind the inner workings is very simple. A spring loaded …
Dry System Technical Manual for Operation, Maintenance and …
The Viking Model G Series Dry Valve assembly includes the Model A-1 Differential Valve and a drain manifold in the valve trim (Figure 1 a), and is designed to be used with a water flow pressure switch
RESIDENTIAL SPRINKLER SYSTEM - Hunter Industries
There are detailed illustrations depicting suggested installation methods for sprinkler heads, pipe and valve manifolds, and how to connect the sprinkler main line into the house water system. …
Hydrotek Valves Instructions Page 1 of 6 - K-Rain
Aug 4, 2005 · The HYDROTEK 4000® Series Valve may be installed below ground in a valve box or directly buried. When connecting the lines to the valve outlets, ensure that the correct cam is …
Instructions for Valve With Installation ... - Reliable Sprinkler
1. Close valve controlling water supply to dry pipe valve. 2. Open Main Drain Valve (6), Fig C, and drain system. 3. Open all drain valves (remove plugs) and open vents at low points throughout …
ˆ˛ˇ˘ DAS-ASVF Series Valve Installation and Operation - Rain …
Connect Valve to Pipes A Apply PTFE thread-seal tape to the male threads on the adapters, screw into the valve and hand-tighten. (do not use PVC glue or pipe dope on adapter threads). B Apply …
Major Valve Components
Before troubleshooting a valve failure, ensure the problem is actually with the valve and not an electrical current coming from the irrigation controller. Disconnect the field control wire from the …
Preaction System Manual-2 - Viking Group Inc.
Feb 19, 2010 · When Using a Model E or F Series Deluge Valve: The pneumatic actuator is installed in the 1/2” release line above the pressure operated relief valve (PORV) and the emergency …
PRODUCT INFORMATION AND USER GUIDE - Hunter Industries
When operating a valve electrically, 24 VAC flows to the solenoid and lifts the solenoid plunger. The pressurized water then vacates downstream through an exhaust port.
CP/CPF Series Valve Installation and Operation 1 2 - Rain Bird
Connect Valve to Pipes A Apply PTFE thread-seal tape to the male threads on the adapters, screw into the valve and hand-tighten (do not use PVC glue or pipe dope on adapter threads). B Apply …
PREACTION SYSTEM DESIGN GUIDE - Reliable Sprinkler
This Design Guide has been prepared by The Reliable Automatic Sprinkler Co., Inc. to provide a source of information that will help users understand and select Preaction System components …
Wet System Technical Manual for Operation, Maintenance, and …
Wet pipe sprinkler systems may be installed in any structure that is reliably maintained above 40 °F (4 °C), to automatically protect the structure, contents, and/or personnel from loss due to fire.
Wet System Manual - Viking Group Inc.
Wet systems are the simplest and most common type of sprinkler system installation, with relatively few components (Figures 1 and 2). The system provides fixed fire protection using piping filled …
THE HANDBOOK OF TECHNICAL IRRIGATION INFORMATION …
In this diagram you must decide the path the water flows from the valve to the farthest head and calculate that distance in feet. The water flow path is shown in Fig. 2 and is represented by the …
RESIDENTIAL SPRINKLER SYSTEM - Hunter Industries
There are detailed illustrations depicting suggested installation methods for sprinkler heads, pipe and valve manifolds, and how to connect the sprinkler main line into the house water system. …
DELUGE SYSTEM DESIGN GUIDE - reliablesprinkler.com
This Design Guide has been prepared by The Reliable Automatic Sprinkler Co., Inc. to provide a source of information to help users understand and select deluge system components for a wide …
Troubleshooting and Maintenance Guide for Residential …
Valves are an essential part of any sprinkler system. They are the link between the "brains" of the system (the controller) and the sprinkler heads, to turn the water on and off.
2.2-2.3 ON/OFF ONLY 2.4-2.7 MANUAL SELECTOR WITH
Solenoid DE-ENERGIZED: the valve will open when UPSTREAM pressure exceeds set point on pilot, then discharge water as required to maintain the pressure set point.
Easy, step-by-step, FREE SPRINKLER SYSTEM DESIGN …
Valve and sprinkler pipe placement. Step by step assembly instructions.
Sprinkler ValVe SyStem inStruction manual
Once a location is selected, dig a hole in the ground deep enough so the top of the valve box will be flat and level with the surface. Check each fitting connection to make sure it is hand-tight. Note: …
UNDERSTANDING AND TROUBLESHOOTING VALVES - Star …
INTRODUCTION to VALVES: Irrigation devices directly controlling water flow to sprinkler heads are known as valves. The principle behind the inner workings is very simple. A spring loaded …
Dry System Technical Manual for Operation, Maintenance and …
The Viking Model G Series Dry Valve assembly includes the Model A-1 Differential Valve and a drain manifold in the valve trim (Figure 1 a), and is designed to be used with a water flow pressure switch
RESIDENTIAL SPRINKLER SYSTEM - Hunter Industries
There are detailed illustrations depicting suggested installation methods for sprinkler heads, pipe and valve manifolds, and how to connect the sprinkler main line into the house water system. …
Hydrotek Valves Instructions Page 1 of 6 - K-Rain
Aug 4, 2005 · The HYDROTEK 4000® Series Valve may be installed below ground in a valve box or directly buried. When connecting the lines to the valve outlets, ensure that the correct cam is …
Instructions for Valve With Installation ... - Reliable Sprinkler
1. Close valve controlling water supply to dry pipe valve. 2. Open Main Drain Valve (6), Fig C, and drain system. 3. Open all drain valves (remove plugs) and open vents at low points throughout …
ˆ˛ˇ˘ DAS-ASVF Series Valve Installation and Operation - Rain …
Connect Valve to Pipes A Apply PTFE thread-seal tape to the male threads on the adapters, screw into the valve and hand-tighten. (do not use PVC glue or pipe dope on adapter threads). B Apply …
Major Valve Components
Before troubleshooting a valve failure, ensure the problem is actually with the valve and not an electrical current coming from the irrigation controller. Disconnect the field control wire from the …
Preaction System Manual-2 - Viking Group Inc.
Feb 19, 2010 · When Using a Model E or F Series Deluge Valve: The pneumatic actuator is installed in the 1/2” release line above the pressure operated relief valve (PORV) and the emergency …
PRODUCT INFORMATION AND USER GUIDE - Hunter Industries
When operating a valve electrically, 24 VAC flows to the solenoid and lifts the solenoid plunger. The pressurized water then vacates downstream through an exhaust port.
CP/CPF Series Valve Installation and Operation 1 2 - Rain …
Connect Valve to Pipes A Apply PTFE thread-seal tape to the male threads on the adapters, screw into the valve and hand-tighten (do not use PVC glue or pipe dope on adapter threads). B Apply …
PREACTION SYSTEM DESIGN GUIDE - Reliable Sprinkler
This Design Guide has been prepared by The Reliable Automatic Sprinkler Co., Inc. to provide a source of information that will help users understand and select Preaction System components …
Wet System Technical Manual for Operation, Maintenance, and …
Wet pipe sprinkler systems may be installed in any structure that is reliably maintained above 40 °F (4 °C), to automatically protect the structure, contents, and/or personnel from loss due to fire.
Wet System Manual - Viking Group Inc.
Wet systems are the simplest and most common type of sprinkler system installation, with relatively few components (Figures 1 and 2). The system provides fixed fire protection using piping filled …
THE HANDBOOK OF TECHNICAL IRRIGATION INFORMATION …
In this diagram you must decide the path the water flows from the valve to the farthest head and calculate that distance in feet. The water flow path is shown in Fig. 2 and is represented by the …
RESIDENTIAL SPRINKLER SYSTEM - Hunter Industries
There are detailed illustrations depicting suggested installation methods for sprinkler heads, pipe and valve manifolds, and how to connect the sprinkler main line into the house water system. …
DELUGE SYSTEM DESIGN GUIDE - reliablesprinkler.com
This Design Guide has been prepared by The Reliable Automatic Sprinkler Co., Inc. to provide a source of information to help users understand and select deluge system components for a wide …