INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS LIMITS OF USE (CONTINUED)

• Maximum operating pressure reduces as does not constitute a recommendation on service temperature increases. Pressure and compatibility for the wider system, resultant temperature limitations are shown by the valve chemical compounds, components, substances body marking or on the identification plate. or materials, in whole or in part. • Crane valves have not been designed as fire For reference, and not exhaustive, certain safe valves. austenitic stainless steels and aluminium alloys crack in the presence of chlorides, mild steel STEEL GLOBE VALVE cracks in the presence of alkali and nitrates, STRESS CORROSION CRACKING copper alloys crack in ammoniacal solutions and 143XU | 151XU iron with almost any caustic species (hydrogen The use of chemicals for system dosing must presence notwithstanding). be determined by the user as all aspects of the system must be established and considered, For more information on how SCC can occur, and the effect of the chemicals used (including please visit www.cranefs.com Globe valves are mainly used to connect compounds arising from chemical combinations) or disconnect the medium in the pipeline must also be established in order to accurately and are generally not used to regulate the PRESSURE TEMPERATURE RATING determine compatibility. flow. They usually require fewer turns to Class 150 Crane (and its related brands) manufacture operate than a gate valve and the seats do not slide against each other, so are less hardware (valves, couplings, etc) for the Building Temperature °C -29 to 38 425 Services industry and Utilities industries. prone to wear. They are recommended However, we are not system designers or Pressure (Bar) 19.6 5.5 where frequent operation is required. operators and cannot make recommendations regarding chemical compatibility for the system, Class 300 as a result of the above variables. Any comments Temperature °C -29 to 38 425 from Crane regarding chemical compatibility shall relate solely to the Crane product and Pressure (Bar) 51.1 28.8

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GENERAL INSTALLATION

Preparation • Ensure valve is suitable for service conditions • If slinging the valve using rope, chain or wire CRANE HOUSE, EPSILON TERRACE, MIDDLE EAST & NORTH AFRICA e.g. pressure, temperature, service media. (make sure breaking strain is correct for valve WEST ROAD, IPSWICH, SALES OFFICE, weight) only sling through yoke legs. Never SUFFOLK IP3 9FJ BUILDING 4, OFFICE 901, FM311 ISO 9001 • Remove dust caps/flange protectors, TELEPHONE: +44 (0)1473 277300 THE GALLERIES, PO BOX 17415, where fitted. sling through valve bore or under/through FAX: +44 (0)1473 277301 DOWNTOWN JEBEL ALI spokes of handwheel. UK SALES ENQUIRES: [email protected] DUBAI, UAE • The installation shall be designed to provide • TECHNICAL ENQUIRES: [email protected] TELEPHONE: 5800 816 4(0) 971+ adequate means of draining and venting to The complete piping system must be flushed TELEPHONE: +44 (0)1473 277400 EXPORT SALES ENQUIRES: [email protected] permit cleaning, inspection and maintenance through prior to commissioning to ensure all www.cranefs.com in the correct manner. foreign matter is removed. Subsequent valve • Designed and manufactured under quality management systems in accordance with BS EN ISO 9001. failure is frequently caused by dirt and other Every effort has been made to ensure that the information contained in this publication is accurate at the time of publishing. Crane Ltd assumes no responsibility or liability for typographical errors or omissions or for any misinterpretation of the matter left in the pipeline. CFS_143XU/151XU_0520 INST_200053-000R01_v1 information within the publication and reserves the right to change without notice.

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GENERAL INSTALLATION (CONTINUED) OPERATION LIMITS OF USE

Valve Location • Steel Globe valves are designed to seat with These valves have been categorised in accordance with the Pressure Equipment Directive • Valves should be located to ensure ease and standard handwheel. Levers, wrenches or other 2014/68/EU. safe operation of the valve. tools should not generally be used to operate The fluid to be transported is limited to those shown in the product table below. a valve. Excessive torque can cause damage On no account must these valves be used on any unstable fluids, or for the fluids to seating faces and/or stem/handwheel. groups not specified in the product table. Piping Supports With larger valves the use of a ‘pinch bar’ is Note: Valves that are classified as SEP (Sound Engineering Practice) are not CE marked These must be carefully aligned and at the acceptable providing the bar length does not and therefore do not require a declaration of conformity. correct distance between centres for the size exceed 1.5 x the handwheel diameter. and type of pipe. Please refer to the current • Handwheels cannot be used for lifting. PED category by valve size (DN) Product applications best practice for details of correct spans and • The operating conditions shall be consistent Fig. No. Material Group 1 Group 2 Group 1 Group 1 installation details. SEP 1 2 3 with the requirements in the performance Gas Gas Liquid Liquid specification. 2.1/2”- 143XU Steel 2” 5”-10” 12” -    Flange Joints • This valve shall not be used at the end of 4” • the line. Make sure the pipe flanges are correctly aligned. 151XU Steel - - 2”-10” 12” -    • Always use the correct size and number • Flow direction is usually with pressure under of bolts. the disc on closure, but may be reversed on • Valves must be installed into a well-designed • It is the responsibility of the installer to ensure • Appropriate gaskets, bolting, and correct hard seated valves to help guarantee a tight system and it is recommended that the that the valves do not exceed the allowable assembly torques should be used to ensure shut off. This may be advantageous if the valve system be inspected in accordance with the limits of pressure. However, the equipment is integrity of joint. Do not match flat-faced is subject to extreme temperature variations, appropriate national and regional legislation. designed to withstand a momentary pressure or if its condition deteriorates with time. flanges to raised face flanges. • Valves must be installed by trained surge of up to 10% above the maximum • Occasionally operate valves that remain open personnel only. working pressure. or closed for long periods to ensure they • Assembly • Service temperature and pressure indicated The product has not been designed to include are in good working order, thus avoiding the corrosion, erosion or abrasion allowances. Any • Make sure the mating faces are free of any on the identification plate or body marking possibility of being inoperable in a time queries regarding service applications should defect that can lead to leakage. All flange faces should not be exceeded. of emergency. be addressed to the Crane Fluid Systems - must be clean and free of foreign bodies. The • The installation should be designed to provide Technical Sales Department. valve must be well supported. Take care to adequate means of draining and venting to avoid • ensure alignment of the flanges. Use a suitable GENERAL CONSIDERATIONS harmful effects such as water hammer, vacuum The valves have been designed for loadings, lubricant on bolt threads. Sequence the bolt collapse, corrosion and uncontrolled chemical appropriate to its intended use and other • tightening to ensure the contact between The surfaces of valves in service may be reactions and to permit cleaning, inspection and reasonably foreseeable operating conditions. flanges and gasket is flat and parallel. Tighten subject to extreme temperatures; care should maintenance in the correct manner. Loadings caused by traffic, wind and be taken when handling. earthquake have not been taken into account. bolts (not in rotation but by the cross over • Valves are not designed to operate under high • method) gradually and uniformly to avoid any shock loadings. Where pressure increases Not suitable for fatigue loading, creep tendency to twist one flange relative to another. occur due to shock loading (water hammer), conditions, fire testing, fire hazard • It is bad practice to install valves with the hand they should be added to the working pressure environment, corrosive or erosive service, wheels pointing downwards, as damage may to obtain the total pressure acting on the transporting fluids with abrasive solids. be caused to the gland packing and stem seal, valve. The total must not exceed the pressure • The piping system shall be designed to reduce by debris in the system. rating of the valve. A pressure surge, or shock, the risk of fatigue due to vibration of pipes. is usually caused by the rapid closure of a check valve or quarter turn valve resulting in a sudden reduction in flow rate.

2 CRANE FLUID SYSTEMS STEEL GLOBE VALVE - 143XU | 151XU CRANE FLUID SYSTEMS STEEL GLOBE VALVE - 143XU | 151XU 3