Plug valve operating instructions(X43F-150Lb-2)PREPARED BY：REVIEWED BY：APPROVED BY：2013.7.10XINTAI V ALVE CO., LTD.CATALOGUE1. Purpose and performance specifications (1)2. U sing standard (1)3.Structural characteristics and operation principle (2)4.Valve main parts material (3)5.Storage, installation, use, inspection (3)6. Troubles and troubleshooting (5)7. Matters needing atten tion (6)1、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） 2 inPressure rating（Class）150 LbTest pressure Shell test 3.0MPa seal test 2.2Low pressure sealtest0.6Suitable temperature -29~120 ºCApplicable medium Water, oil, non - corrosive gas or liquid1.3The maximum working pressure rating of the valve (Pressure - temperature reference)(Gauge pressure：MPa)Temperature(ºC) -29~38 50 100 150Ratings 1.96 1.92 1.77 1.58Table 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 principle3.1Structure and main dimensions refer to sketch1 The valve body2 Bushing3 Plug4 In the flange gasket5 The adjusting shim6 Packing7 Filler8 The six hexagon nuts9 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 name The valvebody,valvecoverPlug FillerThepadStudboltThe sixhexagonnutsMaterials usedASTMA351 CF8ASTMA351 CF8PTFE PTFEASTMA193B8ASTMA194 85、Storage, Installation, Using, Maintenance5.1 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 inletand outlet should be blocked.c.During the period of storage, the outside portion of the stem and the machined surfaceshould 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.5．2 Installationa. The valve can be installed freely, Usual used in horizontal pipe line ,and can also used invertical 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 andnameplate conform with the practical requirements.c.Before installation, operators must inspect the inside , remove the disc fix set ,and try toturn 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 sameway of the medium and the arrowhead ,otherwise can stop the natural way of medium. 5．3 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. Mustn’t take it as theregulation 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 .5．4 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 EliminationFaults Reasons Eliminating waysPacking leakage 1. The packing gland is not.2. Inadequate packing ring3. Packing damage failure1.Screw down the nut2.To increase the number ofturns3.Replacement of packingThe valve cover and valve body junction leakage 1.Bolt fastening unevenness2.Flange sealing surfacedamage3.Breakdown or failure ofgasket1.Tighten the bolts evenly2.To trim3.Replace the gasketThe sealing surface leakage 1.The sealing surfacecontaminants attached2.The sealing surface isdamaged3.Sealing surface oflong-term use of wear4.Seal leakage1.Remove dirt2.The new processing andfinishing3.The body back liningPTFE4. Flange nut to adjust shimdown, or tighten the packingpress nuts down, so that theplug down pressing linerseal.Bushing andvalve leakage Bushing and valve seal oil istoo smallReplace the bushingWrench rotation is not flexible or plug can not open and close 1.The packing too tight2.Packing gland device skew3.Stopper rod bending4.The sealing surfacecontaminants attachedUnscrew the nut properpacking glandAdjust the packing glandThe rod of correctionRemove dirt7 Note:7．1 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 user's 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 to the value of the consequences is completely user Responsibility.7.6 The valve is used in the media are listed in article 1.2 in the table, cause beyond the scope of the consequences is entirely the responsibility of the user.7.7 Valve must not be pressure increase or replace the packing, sealing structure is not asusers replace with pressure filler reason.7.8 Valve operation process not welding repair and exterior paint.7.9 The valve shall be removed under compression.7.10 Valve according to the fourth sheet material matching under repair.7.11 The valve design is not life calculation, test and fatigue strength calculation, users must be regular maintenance, replacement in use.7.12 The valve design not consider seismic load, the consequences arising therefrom, shall not be responsible for manufacturing factory.。