旋塞阀说明书英文Plug valve.doc

Plug valve operating instructions(X43F-150Lb-2) PREPARED BY：REVIEWED BY：APPROVED BY： 2013.7.10XINTAI VALVE CO., LTD.CATALOGUE1. Purpose and performance specifications12. Using standard.13. Structural characteristics and operation principle.24. Valve main parts material.35. Storage, installation, use, inspection.36. Troubles and troubleshooting.57. Matters needing attention.61、Purpose and performance specifications1.1 Usagea、This product is mainly used for pipeline gas, liquid and granular medium as an opening and closing device, connected or cut off the medium flow, not suitable for regulating media flow. With the flow resistance is small, open and close more effort etc.b、Scope of application: chemical, petroleum, metallurgy, papermaking, pharmaceutical and other industries.1.2 Performance specificationsNominal diameter（NPS）2inPressure rating（Class）150LbTest pressureShell test3.0MPaseal test2.2Low pressure seal test0.6Suitable temperature-29120CApplicable mediumWater, oil, non - corrosive gas or liquid1.3 The maximum working pressure rating of the valve (Pressure - temperature reference) (Gauge pressure：MPa)Temperature(C)-293850100150Ratings1.961.921.771.58Table temperature refers to the state line the medium temperature, pressure is continuous table without impact pressure1.4The valve flow coefficient: Kv=120m.1.5 The new valve open torque:320N.m.2 、Using standard2.1 Design and manufacture according to the provisions of API 6D version twenty-third；2.2 Inspection and testing in accordance with API 6D twenty-third Edition；2.3 Flange size according to the provisions of ASME B16.5:2003；2.4The length of the structure according to the provisions of API 6D version twenty-third; 2.5 Valve pressure - temperature reference according to the ASME B16.34: 2004.3、Structural characteristics and operation principle3.1 Structure and main dimensions refer to sketch1 The valve body 2 Bushing 3 Plug 4 In the flange gasket 5 The adjusting shim 6 Packing 7 Filler 8 The six hexagon nuts 9 Stud bolt 10 The valve cover 11 Filler plate 12 Inside the six socket head cap screw 13 wrench 14 The six hexagon head bolts 15 Big gasket 16 Stud bolt 17 The handle head3.2The plug valve is driven by rotating the wrench plug rotating 90 DEG C to open or close.3.3 The closed valve wrench clockwise rotation of 90 degrees.3.4 The valve using the valve lining PTFE material, good sealing performance, the use of temperature 150 .3.5 The valve uses a wedge type plug, rotation torque is small, easy to seal, not easily stuck due to temperature change.3.6 The adjusting shim structure, auxiliary valve cover pressing plugs to seal, and easy to repair.3.7 The valve cover is provided with a V type of PTFE filler, lubricant oil installation fashion into a little, good sealing performance.3.8 The quenching and tempering, chrome plating, enhance hardness, improve sealing performance and service life.4、Valve main parts materialPart nameThe valve body, valve coverPlugFillerThe padStud boltThe six hexagon nutsMaterials usedASTM A351 CF8ASTM A351 CF8PTFEPTFEASTMA193 B8ASTMA194 85、Storage, Installation, Using, Maintenance 5.1 Storagea. Valves must be stored in a dry and ventilative room. b. During the period of storage, The disc should be always be shut and fixed and the inlet and outlet should be blocked. c. During the period of storage, the outside portion of the stem and the machined surface should be covered by an easily cleaned antirust.d The valve stored for a long time should be inspected and cleaned at an expected time. At the same time, the antirust should be re-brushed.52 Installationa. The valve can be installed freely, Usual used in horizontal pipe line ,and can also used in vertical or bevel pipe line, but it should be convenient to maintenance, inspection and operation.b. Before installation, operators must review whether the contents on the marking and nameplate conform with the practical requirements.c. Before installation, operators must inspect the inside , remove the disc fix set ,and try to turn on the disc to check the seal face ,and clear it.d. Installation this valve , must be note the flow way of the medium , and must keep same way of the medium and the arrowhead ,otherwise can stop the natural way of medium. 53 Usinga. The practical condition intending to use valves must conform with the requirements specified on nameplate and in the operation instruction. b. The valve only works for getting or shutting off medium. Mustnt take it as the regulation valve.c. When shutting the valve ,it will have water hammer in the pipe line , badly will damaged the valve , so the user should inspect on time , if find some problem repair in time .54 Inspection1. During the period of using valves, The following projects must be inspected at an expected time. Once any noncompliance is found, Please correct it right now.a. Whether fasteners become less crowded or notb. Whether packing is worn out and gaskets are mangled or not. (inspection without work)c. Whether the disc can turn on easily ,and whether have the problem of obstruct.d. Whether the wall thickness of valves becomes thin distinctly for corrosion or erosion or not. If the wall thickness is less than the net valuation only satisfying the requirements of tensile strength or there exists a visually leakage, the valve must be scraped.e. After valves are inspected and assembled, they are tested per responsible specifications and the records must be documented to refer to later.6 Faults and EliminationFaultsReasonsEliminating waysPacking leakage1. The packing gland is not.2. Inadequate packing ring3. Packing damage failure1.Screw down the nut2.To increase the number of turns3.Replacement of packingThe valve cover and valve body junction leakage1.Bolt fastening unevenness2.Flange sealing surface damage3.Breakdown or failure of gasket1.Tighten the bolts evenly2.To trim3.Replace the gasketThe sealing surface leakage1.The sealing surface contaminants attached2.The sealing surface is damaged3.Sealing surface of long-term use of wear4.Seal leakage1.Remove dirt2.The new processing and finishing3.The body back lining PTFE4. Flange nut to adjust shim down, or tighten the packing press nuts down, so that the plug down pressing liner seal.Bushing and valve leakageBushing and valve seal oil is too smallReplace the bushingWrench rotation is not flexible or plug can not open and close1.The packing too tight2.Packing gland device skew3.Stopper rod bending4.The sealing surface contaminants attachedUnscrew the nut proper packing glandAdjust the packing glandThe rod of correctionRemove dirt7 Note:71 The valve material selection and the possibility of deterioration in use and necessary periodic inspection by the user is responsible for considering7.2 The valve design only consider the general case, if there are special requirements shall be specified in the contract.7.3 The valve design only consider certain corrosion, there is a serious or special corrosion occasion, the valve does not apply.7.4 The valve operating temperature range shall not exceed the provisions of article 1.2 in the table, more than (including instantaneous) the range of consequences is the users responsibility.7.5 The corresponding temperature valve the maximum working pressure shall not exceed the provisions of article 1.3 in the table, more than (including instantaneous) pressure rated the scope or use and temperature are not corresponding