The Piping Specification (abbreviated: Pipe Spec ) is a document prepared during the design phase of any project. You can find a good specification on "Ammonia Refrigeration Piping Handbook" from IIAR Chapter 2 page 2-1 and 2-2 . The operator's manual for anhydrous ammonia equipment should include instructions on proper procedures to follow when handling. 114. TABLE OF CONTENTS Page Background 2 System Configuration 4 System Stability 4 Evaporator Selection and Operation 6 DT1 vs DTM Ratings 6 Sensible Heat Ratio, Room rh%, and Evaporator Ratings 7 In the steam drum the feed water is then turned into steam from the heat. Improve facility safety with Ammonia Pipe Markers. 5.2.6.2. SPECIFICATIONS ) Page 8 of 40 Rev: 01 Feb 2011 Hydrostatic Testing 1. After the steam is used it is then dumped to the main condenser. 5.2.6. A. Ammonia Pipe and Fittings 1. All refrigerated piping shall conform to the Refrigeration Piping Code, American National Standards Institute, B31.5-1966 with addenda B31.1a-1968, which is incorporated by reference as specified in § 1910.6, as it applies to ammonia. These cryogenic pipe supports, also known as “cold shoes” are designed with 2” thick polyurethane and foam glass for insulation and fabricated from galvanized steel for the shoe, with alloy bolts and nuts.They are 2” diameter 14″ L X 4″ W X 6″ H. piping. Good refrigeration piping design requires that the refrigeration lines be pitched in the direction of flow at approximately 1/2 inch per 10 feet or 1 inch per 20 feet. This book is a guide to modern ammonia refrigeration piping, a comprehensive introduction to ammonia piping as it is practiced in the field. The inadvertent or accidental opening of manual hand valves has been a contributing cause in many ammonia releases and although the U.S. Occupational Safety and Health Administration (OSHA) enacted the control of hazardous energy (lockout/tagout) regulation in 1989 … MATERIAL: Carbon steel SERVICE: For use on high temperature piping installation. Piping Specs provides specific/additional requirements for the materials, components, or services that are beyond the code and standard requirements. Most of this attention needs to be focused on the liquid drain line from the outlet of the evaporative condenser to the high pressure receiver. Refrigerant velocities in vertical lines should be at least 1500 ft/min to ensure good oil return; piping run regardless if it is 50' or 250'. They are en- RELATED CONSTRUCTION SPECIFICATIONS - Piping and Equipment Cleaning Specification. The pressure drop in the piping must be minimized to avoid adversely affecting performance and capacity. 4. 6. • Supports loads equal to the full limitation of the hanger rod. Piping Specifications are technical documents that are generated by private companies to address additional requirements applicable to a specific product or application. Because For companies that intend to implement a more stringent level of acceptance criteria, as recommended by IIAR and applied by corporations that maintain best practices, the following table, In-Service Pipe Wall Thickness Thresholds for Ammonia Refrigeration Piping Systems, includes the same metrics as the ANSI/IIAR 6 Standard Table A.11.1.1.3.1 with … Hydrostatic pressure testing of the Unit shall be performed to prove strength of the materials and weld integrity after completion of the construction. Inspection and Maintenance of Ammonia Mechanical Refrigerating Systems • ANSI/IIAR Standard 2 Equipment, Design, and Installation of Ammonia Mechanical Refrigerating Systems • ANSI/ASME B31.3 Process Piping • ANSI/ASME B31.5 Refrigeration Piping and Heat Transfer Components • ANSI/NBIC-23 NBBI 2001 National Board Inspection Code "DOT specifications" means regulations of the United States department of transportation published in 49 CFR chapter 1. Every engineering field has its list of abbreviations to help convey information quickly and easily. 1 Guidelines for Identification of Ammonia Refrigeration Piping and System Components INTRODUCTION Uniform guidelines for identifying ammonia refrigeration piping. Standard Practice for Ammonia Colorimetric Leak Testing: E1603 / E1603M - 11(2017) Standard Practice for Leakage Measurement Using the Mass Spectrometer Leak Detector or Residual Gas Analyzer in the Hood Mode: E2024 / E2024M - 11(2019) Standard Practice for Atmospheric Leaks Using a Thermal Conductivity Leak Detector: E2930 - 13 A409/A409M-01. A403/A403M-03a. The Provided specifications and plans are for use by the Prime contractor and his subcontractors. The advantage of the graphic representation of this information is to show just how close to full capacity a particular selection is. Ammonia Piping Installation Manual. Since ammonia is environmentally benign, having zero (GWP) and zero (ODP) characteristics, ammonia is emerging as one of the primary natural refrigerants of choice. The reasons for this will be explained in the sample pipe described later on. 95: Steel Clevis . Bulletin 114 has for over 20 years focused on correct labeling of pipe and equipment in an industrial ammonia refrigeration system. Piping is an important aspect to hydraulic systems, comes in many forms, and requires specialized expertise. Boiler feedwater is an essential part of boiler operations. Chapters 1, 2, 6, and 7 are significantly revised to reflect modern practices, current codes and standards, and to correct errata: Ammonia piping shall be 304L stainless steel for corrosion protection. Inject ammonia to a pH of 9.5. To improve the safety of ammonia refrigeration piping and system components, the International Institute of Ammonia Refrigeration (IIAR) has a guideline for labeling them: Bulletin No. Sr. Approved by the American National Standards Institute May 16, 2012 Supersedes ANSI/IIAR 3-2005 Ammonia Refrigeration Valves American National Standard for ANSI/IIAR 3-2012 96586_ANSI_IIAR3.indd 1 6/26/12 3:12 PM The initial cost is impacted by the diameter and layout of the piping. Standard specification for welded large-diameter austenitic steel pipe for corrosive or high-temperature service. It provides the appropriate selection, specification and material grade of pipe and piping components for a given service. Outfit your facility with standard pipe markers to convey important information about Toxic Corrosive pipe contents and potential hazards. Guideline for Developing an Energy Control Plan for Manual Hand Valves in Ammonia Refrigeration Systems, 1st Edition. Carbon steel transitions or fittings may be used where required to connect to valves, vessels or similar components. These pressure-sensitive vinyl pipe markers exceed ANSI/ASME … Ammonia is a natural refrigerant that has been used for many years in a variety of applications due to its high thermal efficiency. FEATURES: • Complies fully with the code for pressure piping. Abbreviation Description 1 ANSI American National Standards Institute Inc 2 API American Petrolium Institute 3 ASA […] ORDERING: Specify figure number, body size, description, rod tapping, size of pin hole, size of pin, size of grip and finish. The feed water is put into the steam drum from a feed pump. The purpose and requirements stem from ANSI/ASME A13.1 to provide … What are Piping Specifications? Stainless steels are defined as iron-base alloys con-taining 10 percent or more chromium. The primary article is titled “The Color Conundrum IIAR Defines Piping Convention” and announce to some changes that will be happening to Bulletin 114 that will be re-released in 2014. The Conservative Approach. Hope it will be useful to new entrants as well as professionals alike. PROCESS DESIGN OF PIPING SYSTEMS (PROCESS PIPING AND PIPELINE SIZING) (PROJECT STANDARDS AND SPECIFICATIONS) Page 4 of 55 Rev: 01 April 2011 SCOPE This Project Standards and Specifications covers process piping design and pipeline sizing, in addition to presenting most popular pressure drop equations and fluid velocity. Standard specification for piping fittings of wrought carbon steel and alloy steel for low-temperature service. The IIAR (International Institute of Ammonia Refrigeration), in conjunction with ANSI, issues guidelines for identification of ammonia lines. PT&P manufactured multiple pre-insulated pipe supports for cryogenic temperatures in an ammonia plant in Louisiana. 3) When solution is homogeneous, Inject 1% sodium nitrite. Compressor Discharge Line The condenser can be piped into a system with either one or multiple compressors. A420/A420M-02. "Existing anhydrous ammonia storage facility" means any permanent anhydrous ammonia storage facility constructed before July 1, 1985. Fig. 5. The tests shall be made on new or repaired equipment and piping. Installation Details. Piping Design Basics Good piping design results in a balance between the initial cost, pressure drop, and system reliability. Pipe sizes up to and including 2” shall be schedule 40, and 2 -1/4” and above piping shall be schedule 10. Trace element analysis are performed every 6 months by an independent lab, and are available for review. 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