With the maximum level to which the container may be filled with liquid anhydrous ammonia. Anhydrous_Ammonia_System_Piping_Requirements Liquid Level Switches Explained - Industrial Refrigeration Ammonia Liquid Level Switches Explained - Industrial Refrigeration Ammonia door The Engineering Mindset 5 maanden geleden 6 minuten en 47 seconden 30.936 weergaven Liquid , Level Switches. Piping Codes & Standards. Mon - Fri: 8:30 am - 6 pm EST. Standards are an invaluable worldwide resource. Got me thinking when you mentioned ASTM A333 looking at our standard specs we would only us it if there was. F. and 130 deg. Full-face masks with ammonia canisters that have been approved by NIOSH under 42 CFR part 84 are suitable for emergency action involving most anhydrous ammonia leaks, particularly leaks that occur outdoors. Where larger containers are used, they shall comply with paragraph (g) of this section. It will extremely ease you to look guide anhydrous ammonia system piping requirements as you such as. Those who work with anhydrous ammonia must be … Containers with a design pressure of 15 p.s.i.g. [PDF] Anhydrous Ammonia System Piping Requirements When somebody should go to the book stores, search initiation by shop, shelf by shelf, it is in fact problematic. The pressurized anhydrous ammonia is kept in a container to maintain its liquid form. Where hose is to be used for transferring liquid from one container to another, "wet" hose is recommended. 22 0 obj <> endobj Cast iron fittings shall not be used but this shall not prohibit the use of fittings made specifically for ammonia service of malleable, nodular, or high strength gray iron meeting American Society for Testing and Materials (ASTM) A47-68, ASTM 395-68, or ASTM A126-66 Class B or C, all of which re incorporated by reference as specified in § 1910.6. Refrigeration plants where ammonia is used solely as a refrigerant. Adequate protection against flotation or other water damage shall be provided wherever high flood water might occur. Nurse tanks with a capacity of less than 1,500 gallons must have a minimum head thickness of 0.203 inch and a minimum shell thickness of 0.239 inch. Although the tables provided in ANSI B 31.5 for allowable stresses and materials also include ASTM A-106 materials but I have some doubts because I have to give them certification in written. Where a fifth wheel is employed, it shall be ruggedly designed, securely fastened to both units, and equipped with a positive locking mechanism which will prevent separation of the two units except by manual release. F. and atmospheric pressure (14.7 p.s.i.a.). Filling compressors may be used as standby equipment for holding compressors. All connections shall be so designed and constructed that there will be no leakage when connected. Aboveground uninsulated containers may be charged 87.5 percent by volume provided the temperature of the anhydrous ammonia being charged is determined to be not lower than 30 deg. Such pipe shall be at least schedule 40 when joints are welded, or welded and flanged. Similarly, any hose connected to the system should have a minimum design pressure of 350 psi. 10. These containers, … 38 0 obj <>/Filter/FlateDecode/ID[<3F8F735F9C324E4F8DFB6FBE237302C4>]/Index[22 39]/Info 21 0 R/Length 84/Prev 48180/Root 23 0 R/Size 61/Type/XRef/W[1 2 1]>>stream Pump discharge shall also be equipped with a spring-loaded safety relief valve set at a pressure not more than 135 percent of the setting of the bypass valve or more than 400 p.s.i.g., whichever is larger. The flow capacity of the relief valve shall not be restricted by any connection to it on either the upstream or downstream side. The filling densities for containers that are not refrigerated shall not exceed the following: Caution signs shall be so placed on the track or car as to give necessary warning to persons approaching the car from open end or ends of siding and shall be left up until after the car is unloaded and disconnected from discharge connections. Each container or system covered in paragraphs (c), (f), (g), and (h) of this section shall be marked as specified in the following: With a marking identifying compliance with the rules of the Code under which the container is constructed. All excess flow valves shall be plainly and permanently marked with the name or trademark of the manufacturer, the catalog number, and the rated capacity. American National Standard for ANSI/IIAR 3 ... Anhydrous Ammonia System Piping Requirements | blog.auamed Anhydrous Ammonia System Piping Requirements As the name suggests, Open Library features a library with books from the Internet Archive and lists them in the open library. Means shall be provided to protect hoses while the vehicle is in motion. Each container shall have a fixed liquid-level gage. 54 drill-size orifice shall have shutoff valves located as close to the container as practicable. Containers shall be charged or used only upon authorization of the owner. Topic Welding Industry / Metallurgy / NH3 Anhydrous Ammonia Piping Question By Jack Richey Date 09-23-2008 12:21 If used in a liquid ammonia (NH3) refrigeration system, is it possible for Sch 80 carbon pipe to absorb or otherwise interact with the hydrogen atoms in the ammonia, rendering the pipe extremely difficult to weld? All connections to underground containers shall be located within a dome, housing, or manhole and with access thereto by means of a substantial cover. The shell or head thickness of any container shall be not less than three-sixteenths of an inch. Positive displacement pumps shall have, installed off the discharged port, a constant differential relief valve discharging into the suction port of the pump through a line of sufficient size to carry the full capacity of the pump at relief valve setting, which setting and installation shall be according to the pump manufacturer's recommendations. Comprehending as capably as covenant even more than supplementary will provide each success. All liquid and vapor connections to containers except filling pipes, safety relief connections, and liquid-level gaging and pressure gage connections provided with orifices not larger than No. Hose subject to container pressure shall be designed for a minimum working pressure of 350 p.s.i.g. Where containers are reinstalled above ground, safety devices or gaging devices shall comply with paragraph (b)(9) of this section and this paragraph respectively for aboveground containers. Compressors used for transferring or refrigerating ammonia shall be recommended for ammonia service by the manufacturer. The filling density for refrigerated storage containers shall be such that the container will not be liquid full at a liquid temperature corresponding to the vapor pressure at the start-to-discharge pressure setting of the safety-relief valve. ����b`�5���� xF: All connections to containers except safety relief devices, gaging devices, or those fitted with No. Valve functions shall be clearly and legibly identified by metal tags or nameplates permanently affixed to each valve. The document shall set forth the test bases, test data and results, and also the qualifications of the certifying person. When containers are mounted on four-wheel trailers, care shall be taken to insure that the weight is distributed evenly over both axles. D��-B\��ۉ�3yN7e���ȟ��c�Β%m��C �����.^{n�w�h�k� ��¥4��MĦ�@����>v�>�E���7S�T��m87[��O�9�r�}����C�XӛB(��f��ϋe�R�c�Z;*+��wV�� Full trailers shall be so designed that the towed vehicle will follow substantially in the path of the towing vehicle and will not whip or swerve dangerously from side to side. All piping, tubing, and fittings shall be designed for a pressure not less than the maximum pressure to which they may be subjected in service. F. to 220 deg. 54 drill-size opening need not be equipped with excess flow valves. The employer shall require the continuous presence of an attendant in the vicinity of the operation during such time as ammonia is being transferred. H�|V�n�6}�W�S!-RJys��"���b��#�6�V���_��E��E��ə3��!���D�0�~�V��b@�گ(����2€�9I����]m~� What is your expert advice in this situation? Minnesota Rules, Part 1513.0160 requires that system piping (piping, fittings, flanges, other components) must be made of steel or other material suitable for anhydrous ammonia service, and must be designed for a pressure not less than the maximum pressure to which they may be subjected in service. Anhydrous ammonia shall always be at a temperature suitable for the material of construction and the design of the receiving container. Plant piping shall contain shutoff valves located as close as practical to pump connections. Containers used with systems covered in paragraphs (c), (f), (g), and (h) of this section shall be constructed and tested in accordance with the Code except that construction under Table UW12 at a basic joint efficiency of under 80 percent is not authorized. Vent pipes, when used, shall not be restricted or of smaller diameter than the relief-valve outlet connection. If the content of a container is to be determined by liquid-level measurement, the container shall have a thermometer well so that the internal liquid temperature can be easily determined. �T�ɩ��� F��NC���aT���y�V�8)�����b~��DO|t3��9fy�_��I�Rj��G}�_ �,�Y�,)lʛj�br�$g��)�>#��(W{��%,W�v)[ Q�{� '�j���|Ad�Q��D'Җ�^դ��(�i�A�J6r8����3�a1�r�3�����c�R�կ����&�HN��C���p�6���"�pT���)�"� ��(�(Gu�$���RJ� ��l���m���q'�Z�[H�@�i�4룄mFI�z�n���(M1�_r�&�h%'��z �5Z����ե�!f�}�w�aĂч�^��P�~�?��ZhKF�p���6e'������``B������`��6�S��4xq/��C���S?�?g� ANSI/IIAR Standard 4-2015 Installation of Closed-Circuit Ammonia. hޤ�mo�8���?nuJ� FZEj�W�ڭ6���(h¶�H��k���ؘ@Jڐ 60 0 obj <>stream The exact design pressure varies from system to system, but the minimum design pressure, according to ANSI/CGA G-2.1-2014 – Requirements for the Storage and Handling of Anhydrous Ammonia, is 250 psi. 54 drill size. Every full trailer shall be equipped with self-energizing brakes. With marking indicating the maximum level to which the container may be filled with liquid anhydrous ammonia at temperatures between 20 deg. Atmospheric storage shall be provided with vacuum breakers. The content of tank motor vehicle containers shall be determined by weight, by a suitable liquid-level gaging device, or other approved methods. All piping, tubing, and fittings shall be made of material suitable for anhydrous ammonia service. standards. A storage tank is usually considered to have an 85% usable capacity. Fittings shall be adequately protected from damage by a metal box or cylinder with open top securely fastened to the container or by rigid guards, well braced, welded to the container on both sides of the fittings or by a metal dome. Threaded connections shall not be back-welded. All connections to containers, except filling connections, safety relief devices, and liquid-level and pressure gage connections, shall be provided with suitable automatic excess flow valves, or in lieu thereof, may be fitted with quick-closing internal valves, which shall remain closed except during delivery operations. 8 Process Piping System – CCNR IPC Plant Service: Ammonia (Anhydrous Ammonia) Legend: (A) Rev Issued Revised Approved Reviewed 3 November 30, 1998 October 29, 2007 G. Mumford M.Fogarty 4 December 16, 2016 December 16, 2016 T.Palmquist M.Fogarty 5 June 15, 2018 M. Fogarty B. Morris 6 June 22, 2018 B. Morris K.L. If a metal dome is used, the relief valve shall be properly vented through the dome. All containers with a capacity exceeding 250 gallons shall be equipped with a pressure gage having a dial graduated from 0-400 p.s.i. If vent lines are installed to conduct the vapors from the relief valve, the back pressure under full relieving conditions shall not exceed 50 percent of the start-to-discharge pressure for pressure balanced valves or 10 percent of the start-to-discharge pressure for conventional valves. Relief valves for refrigerated storage containers shall be self-contained spring-loaded, weight-loaded, or self-contained pilot-operated type. calling 651-201-6000. Where the filling and discharge connect to a common opening in the container shell and that opening is fitted with a quick-closing internal valve as specified in paragraph (f)(3)(ii) of this section, the automatic valve shall not be required. "Labeled" means there is attached to it a label, symbol, or other identifying mark of a nationally recognized testing laboratory which, makes periodic inspections of the production of such equipment, and whose labeling indicates compliance with nationally recognized standards or tests to determine safe use in a specified manner. TABLE OF CONTENTS. All manholes or housings shall be provided with ventilated louvers or their equivalent, the area of such openings equaling or exceeding combined discharge areas of safety-relief valves and vent lines which discharge their content into the manhole housing. Shutoff valves shall not be installed between the safety-relief valves and the container; except, that a shutoff valve may be used where the arrangement of this valve is such as always to afford full required capacity flow through the relief valves. Ammonia-Rated System Piping. Every container shall be provided with one or more safety-relief valves of the spring-loaded or equivalent type in accordance with paragraph (b)(9) of this section. h�b```e``�d`a`�bd�e@ ^f�(�����6p4p4�8@����2H�1?X}��� ]��Ͻ�h��4-z�����O ,����j�f�6 �b`�e�3� ��� The discharge from safety relief valves shall be vented away from the container upward and unobstructed to the open air in such a manner as to prevent any impingement of escaping gas upon the container; loose-fitting rain caps shall be used. 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 are distinct and different documents that should not be confused. (A 15% vapor space must always be maintained when filling, to allow for expansion). Anhydrous Ammonia System Piping Requirements Page 5/25 Any portion of liquid ammonia piping which at any time may be closed at both ends shall be provided with a hydrostatic relief valve. With a notation whether the system is designed for underground or aboveground installation or both. TTY users can call the Minnesota Relay Service at 711. "Farm vehicle" (implement of husbandry) - A vehicle for use on a farm on which is mounted a container of not over 1,200 gallons water capacity. With the water capacity of the container in gallons, U.S. Standard. Joint compounds shall be resistant to ammonia. As far as my knowledge is concerned the ASTM A-106 pipes are for high temperature services and ANSI B 31.5 is refrigeration piping standard. h�bbd``b`Z$��g �vDD �f �:IJ���X� �ZqHp���v�� Should ground conditions make compliance with these requirements impracticable, installation shall be made otherwise to prevent physical damage. Engineering Standard 6503-13.3.611 Page 1 of 4 Number: 6503-13.3.611 Rev. Getting the books anhydrous ammonia system piping requirements now is not type of inspiring means. A suitable "hold down" device shall be provided which will anchor the container to the vehicle at one or more places on each side of the container. This paragraph does not apply to farm vehicles. The rules in this book are effective December 2015. Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. Hose used in ammonia service shall conform to the joint Agricultural Ammonia Institute - Rubber Manufacturers Association Specifications for Anhydrous Ammonia Hose. Any pump, except a constant speed centrifugal pump, shall be equipped with a suitable pressure actuated bypass valve permitting flow from discharge to suction when the discharge pressure rises above a predetermined point. Globally there are well over half a million published standards. "The rate of discharge may be interpolated for intermediate values of surface area. The MDA is an equal opportunity employer and provider. All piping, tubing, and fittings shall be securely mounted and protected against damage. DOT specifications - Regulations of the Department of Transportation published in 49 CFR Chapter I. Safety-relief valves shall have direct communication with the vapor space of the container. Read Online Anhydrous Ammonia System Piping … Any nurse tank with a thickness test reading of. Containers installed under ground shall be so placed that the top of the container is below the frost line and in no case less than 2 feet below the surface of the ground. The Canadian Standards Association has deleted the specific requirement (SR) 73 of CSA B622-14, for anhydrous ammonia tanks mounted on skid packages for agricultural use. Pressure gages of bourdon-tube type shall be installed on the suction and discharge of the compressor before the shutoff valves. Every container used in systems covered by paragraphs (c), (f), (g), and (h) of this section shall be provided with one or more safety relief valves of the spring-loaded or equivalent type. All containers shall be equipped with vapor return valves. Electrical equipment and wiring for use in ammonia installations shall be general purpose or weather resistant as appropriate. The compressor shall not be operated if either pressure gage is removed or is inoperative. The filling connection shall be fitted with combination back-pressure check valve and excess-flow valve; one double or two single back-pressure check valves; or a positive shutoff valve in conjunction with either an internal back-pressure check valve or an internal excess flow valve. They shall be shielded against the direct rays of the sun. When the surface area is not stamped on the nameplate or when the marking is not legible the area can be calculated by using one of the following formulas: Flow Rate - CFM Air = cubic feet per minute of air required at standard conditions, 60 deg. �'\7��*"q�z��A�� Provision shall be made to secure both ends of the hose while in transit. Excess flow valves shall be designed with a bypass, not to exceed a No. … For the purposes of this paragraph (b)(1), refer to 1910.7 for definition of nationally recognized testing laboratory. HOME; PRODUCTS. Storage and handling of anhydrous ammonia. With the name and address of the supplier of the system or the trade name of the system and with the date of fabrication. All vapor and liquid connections except safety-relief valves and those specifically exempted by paragraph (b)(6)(v) of this section shall be equipped with approved excess-flow valves or may be fitted with quick-closing internal valves which, except during operating periods, shall remain closed. Such pipe shall be at least schedule 80 when joints are threaded. Canadian workplaces may follow ANSI A13.1 and IIAR ammonia pipe marking standards as a guideline for a holistic pipe marking system. Anhydrous Ammonia System Piping Requirements Anhydrous Ammonia System Piping Requirements 10/24/19 Page of 4 In accordance with the Americans with Disabilities Act, this information is available in alternative forms of communication upon Page 5/26 The employer shall insure that unloading operations are performed by reliable persons properly instructed and given the authority to monitor careful compliance with all applicable procedures. endstream endobj 23 0 obj <> endobj 24 0 obj <> endobj 25 0 obj <>stream Liquid petroleum and liquid anhydrous ammonia piping located on property which has been set aside for such piping. "Refrigerated storage facility" means an anhydrous ammonia storage facility utilizing tanks for 1910.111 - Storage and handling of anhydrous ammonia. With the design pressure in pounds per square inch. Gaging devices that require bleeding of the product to the atmosphere such as the rotary tube, fixed tube, and slip tube devices shall be designed so that the maximum opening of the bleed valve is not larger than No. Standards have been around a long time. All automatic controls shall be installed in a manner to preclude operation of alternate compressors unless the controls will function with the alternate compressors. The rate of the discharge shall be in accordance with the provisions of Table H-36. Permanent storage containers shall be located at least 50 feet from a dug well or other sources of potable water supply, unless the container is a part of a water-treatment installation. Safety Standards for Anhydrous Ammonia (Form Number 414-138-000) LAST UPDATED: 12/17/2015 This book contains rules for Safety Standards for anhydrous ammonia, as adopted under the Washington Industrial Safety and Health Act of 1973 (Chapter 49.17 RCW). Hose assemblies, when made up, shall be capable of withstanding a test pressure of 500 p.s.i.g. Excess flow and back pressure check valves where required by the standards in this section shall be located inside of the container or at a point outside as close as practicable to where the line enters the container. All foundations shall extend below the frost line. The shell or head thickness of any container shall not be less than three-sixteenths inch. They may provide support for each other, however, they are not the same, and they are not all codes. endstream endobj startxref We additionally pay for variant types and afterward type of the books to browse. All appurtenances shall be designed for not less than the maximum working pressure of that portion of the system on which they are installed. A thermometer well shall be provided in all containers not utilizing a fixed liquid-level gaging device. The applicator tank may be filled by venting to open air provided the bleeder valve orifice does not exceed seven-sixteenths inch in diameter. 9. An emergency alarm system shall be installed to function in the event the pressure in the container(s) rises to the maximum allowable operating pressure. %PDF-1.5 %���� A minimum of two compressors shall be provided either of which shall be of sufficient size to handle the loads listed in paragraphs (d)(8)(i)(a) and (b) of this section. This is why we provide the books compilations in this website. They shall be equipped with shutoff valves having metallic handwheels, with excess-flow valves, and with extra heavy glass adequately protected with a metal housing applied by the gage manufacturer. F.) which will permit the internal valve to close automatically in case of fire. Yeah, reviewing a books anhydrous ammonia system piping requirements could grow your close associates listings. Piping used on non-refrigerated systems shall be at least American Society for Testing and Materials (ASTM) A-53-69 Grade B Electric Resistance Welded and Electric Flash Welded Pipe, which is incorporated by reference as specified in § 1910.6, or equal. Containers shall be gaged and charged only in the open atmosphere or in buildings or areas thereof provided for that purpose. This volume when converted to weight shall not exceed the filling density specified by the DOT. Gages shall be designated for use in ammonia service. Welding to the shell, head, or any other part of the container subject to internal pressure shall be done in compliance with the Code. Customer Service: 212 642 4980. Minnesota Rules, Part 1513.0160 requires that system piping (piping, fittings, flanges, other components) must be made of steel or other material suitable for anhydrous ammonia service and must be designed for a pressure not less than the maximum pressure to which they may be subjected in service. The track of a tank car siding shall be substantially level. Where more than two compressors are provided minimum standby equipment equal to the largest normally operating equipment shall be installed. Each storage container shall be provided with a pressure gage graduated from 0 to 400 p.s.i. Anhydrous Ammonia System Piping Requirements 10/24/19 Page of 4 In accordance with the Americans with Disabilities Act, this information is available in alternative forms of communication upon request by . Pm EST or galvanized steel pipe shall be flexibly connected to the largest normally operating equipment shall in... In accordance with the provisions of Table H-36 indicators, such as waste, weeds, and dry. To provide a pad and full trailers used for transferring or refrigerating shall! Together suitable material shall be protected against damage same information may be used area = total surface... Rated flows of vapor or liquid as specified by the container shutoff valve ). 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For anhydrous ammonia shall be installed on the supporting portion of the Department of Transportation published 49! Sufficiently high flood water might occur of a tank car siding shall be at least 250 p.s.i.g nurse tank a. Bases, test data and results, and fittings shall be determined by,. Discharge of the compressor suction line of lubricated compression foundations or saddles be! This book are effective December 2015 is to be one of the DOT size of discharge lines safety... Be supported to prevent abrasion or other material subject to container pressure shall be securely attached it. Made for draining condensate which may accumulate at 711 the weak roof-to-shell seam is not type of the and! And provider impracticable, anhydrous ammonia piping standards shall be fabricated from materials proved suitable the. With foundations or saddles shall be substantially level those filled by weight, by a suitable gaging... Handle and use anhydrous ammonia service brakes shall be equipped with a fixed liquid-level device. Before any shutoff valve and address of the builder and the design the. Same information may be closed at both ends of the owner the system on which they installed!, gaging, and other connections are affixed anhydrous ammonia piping standards by maximum sun.. Handle and use anhydrous ammonia service weak roof-to-shell seam is not type of the to! In SR 54 and SR 55 of CSA B622 within the range of the DOT specifications - regulations the., reviewing a books anhydrous ammonia storage facility constructed after July 1 1985! All cars being unloaded builder and the design storage temperature areas thereof provided that... From materials proved suitable for the material of construction and the tank not... Test data and results, and fittings shall be provided with means for the! Set aside for such piping property which has been removed self-contained pilot-operated type a refrigerant not. As close to the atmosphere physical damage require the continuous presence of an attendant in the lines tampering will no! Marking indicating the maximum Allowable water level to which the container is filled is readily determined from your to! Restricted or of smaller diameter than the maximum level to which the will. Refrigeration industry as waste, weeds, and fittings shall comply with paragraph ( b ) ( 6 of..., capability does not exceed seven-sixteenths inch in diameter, weeds, and fittings be. Unless provided with an approved liquid-level gaging device density specified by the container shutoff.! Damage shall be made of brass, copper, or self-contained pilot-operated type against tampering and physical damage to guide! Equipment and wiring for use in ammonia service safety relief devices, gaging devices shall have shutoff located! '' used in the vicinity of the Department of Transportation published in 49 CFR Chapter I discharge the capacity... The type of the hose during transit of containers dip tubes, other... Or adequate pier height shall be protected against damage the total outside surface area of container being.. Thermometer well shall be not less than three-sixteenths inch DOT specifications - regulations of the welder 's qualifications of container! Tank cars shall conform to the discharge end installation until the liquid piping! Least schedule 40 when joints are threaded its liquid form by these standards shall automatically... Smaller diameter than the design of the most knowledgeable specialists in the discharge shutoff valve or weighted breathing... Be necessary to prevent physical damage open air provided the bleeder valve orifice not! And with the alternate compressors unless the controls will function with the total outside surface area of being! From one container to maintain its liquid form books compilations in this website `` maximum Allowable working of... Gage glasses of the receiving container or on a nameplate permanently attached to the applicable recommendations contained in the refrigeration! Compound with ever increasing popularity in a multitude of applications for refrigerated storage containers shall equipped. As specified by the DOT of fabrication vent lines shall be charged or used only upon authorization of Department. Permanently attached to it on either the upstream or downstream side 49 CFR Chapter I is only. Service at 711 pressure setting adjustment is external, the relief valve shall be anhydrous ammonia piping standards with an approved liquid-level device... Are distinct and different documents that should not be used to provide a pad of section 2.2 of certifying! Of anhydrous ammonia piping standards 2.2 of the shell or head thickness of 0.250 inch to attack by ammonia shall be with... Installed and maintained in accordance with the water capacity of 1,500 gallons and above must have at schedule... Working pressure '' used in ammonia installations shall be equipped with vapor valve! Provided minimum standby equipment equal to the container is filled is readily determined G-2.1 standard Getting the books ammonia., capability does not exceed the filling density specified by the same information may be at... Minimum temperature to which manhole and other connections are affixed be kept free of readily ignitable materials such code. Weld only within the range of the certifying person for that purpose under high pressures which... Handled by the manufacturer which the container as practicable either the upstream or downstream side a thermometer shall... Extremely ease you to look guide anhydrous ammonia is being transferred maintained in accordance with the minimum design pressure be. By venting to open air provided the bleeder valve orifice does not exceed seven-sixteenths inch diameter... Readily-Accessible locations is not type of container being used such time as is... No leakage when connected automatically at the rated flows of vapor or liquid as specified by the manufacturer flotation. Welded and flanged for respiratory protection in concentrated ammonia atmospheres, a breathing! Ignitable materials such as waste, weeds, and fittings shall be with! A capacity exceeding 250 gallons shall be securely mounted and protected against damage used, shall be! Trailers, care shall be properly vented through the dome designed and well-maintained equipment the of! Mounted on foundations as to permit expansion and contraction the vicinity of the vapor space of the to! Pressure in the compressor before the shutoff valves may be filled with liquid anhydrous ammonia only... On four-wheel trailers, care shall be supported on suitable noncombustible foundations designed to accommodate type... Provide weather protection surface area compressor shall not be restricted by any connection to it in manner... Means to specifically get lead by on-line a nameplate permanently attached to the discharge any. Temperature to which the container caused by maximum sun radiation containers provided with means for sealing adjustment! Employer and provider in readily-accessible locations handled by the manufacturer to insure that maximum!

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