check valve (urgent enquiry) |
| 03-21 12:29:23 来源： 作者： |
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check valve (urgent enquiry) Inquiry (采购产品): check valve (urgent enquiry) Dear Export manager / Export department / Sales department for check valve. We are in a position to ask you to offer for the following in a couple of days ; Pls let us know if you can offer or not by today. Check valve 150mm(6") 300LB RF FLANGED, HASTELLOY B-2 & ZIRCONIUM 702 TEF TRIM SWING/BC Quantity : 1 PC Fluid : acetic acid. - MFG : ANY SUPPLIER - Price terms: CNF INCHEON AIRPORT KOREA or CNF BUSAN PORT KOREA - Delivery : 3 months =========================================================== 1.Note: check valve may be swing,piston lift or ball.Check valves for service in horizontal lines only shall be marked "H". Check valves for service in vertical lines only shall be marked "V". Check valves for service in horizontal and vertical lines shall be marked "H & V". Swing type checks shall ve provided with a locking device for the hindge pinand/or hinge pin plug to prevent loosening in service (refer to BS1858 Fig.I). Swing type checks shall have an internal stop to prevent disc "overturning" when valve is fitted in vertical line. 2.Note : Detailed specifications 1.type : Check/J24WX3 (Lift : DN40&Below, Swing: DN50 & over) 2.piping class:WA3B 3.Service : Acetic acid, 4.sizing rate : 15 to 200 (DN) 5.Pressure : ANSI 300LB, Temperature: -5 to 204 7.end connection : ANSI 300LB RF,8. construction : cover/face-BB/T-G or M-F bonnet seat : INT, body seat : INT. 9.Main material : body-A494-N-7M/A744(Chlorimet 2 or Equivalent), body seat : ditto, disc&disc seat : B550-Gr 702, Hinge pin: B550-Gr.702 Cover bolt & nut : A193-B8 & A194-8, gasket : VI 7592 or EQ (VI 7590 may be used for T-G). 10.Application standard : ANSI B16.34(API 603 may be refered). API-598. 11.-orther requirment : quality level 1 -apply to material specification of C33, M10,PMI. -category of special valve : C -high pressure clousre test pressure : 51kg/cm2G(45.8 X 1.1=50.4) -gasket contact surfaces shall have the serration in accordance with the ANSI B16.5 except that the finish shall be 125 to 250 AARH roughness. -thread series of bolt shall be 3 pitch series for bolt size of M30 & over. Height of nut shall be the same of bolt diameter. 3.Note : supplymentary requirments. 1. material 1) the manufacturer shall ensure the hastelloy & sirconium product shall meet the requirment of the following material specifications ; a. for hastelloy alloy B-2 - material specification C33 : for casting (chlorimet 2 ) b. for zirconium 702 - material specifiction M10 : for plate & bar c. for hastelloy alloy B-2 & zirconium 702 - positive material identification (PMI) 2) the trade name of hastelloy has been used for generic group of mickel-chrome- molybdenum , and nickel-molybdenum alloys. Certification and drawing sheets shall state the relevant ASTM numbers and not trade names. 2. Pressure and temperature curve when hastelloy casting flanges may be used, the manufacturer shall submit the pressure-temperature curve. 3. Nondestructive test nondestructive test shall be performed as follows ; 1) for hastelloy casting (body & cover flange) a. 100% RT shall be performed on the castings in accordance with Para. C4,k in appendix C of purchasing specification for valve. * Para. C4,k in appendix : castings shall be subjected to 100% radiographic examination in a manner to be submitted by the manufacturer and approved by the purpurchaser. Generally the recommended pratice for radiographic testing is that given in ASTM specification E-94. The results shall conform to radiographic standards for severity level 2 castings categories A,B and C defects as established by ASTM specification E446-84.Categories D,E,F and G defects are not permitted. b. 100%PT shall be performed on the casting surfaces in accordance with Para.C4, m in appendix C of purchasing specification for valve. * Para.C4,m in appendix C : all casting shall be subjected to 100% dye-penetrant test. test shall be carried out in accordance with article 6 of ASME V and evaluated to appendix 8 of ASME VIII Div.1. Orther standards may be used with the approval of the managing contractor. Whrer there is an indication of a linear defect or area of grouped porosity as cast surface in this area should be removed and the area retested.any linear defect or area of grouped porosity may be casue for rejection and should be refereed to the managing contractor. 4. high pressur clousure test high pressure clousre test shall be performed on all sizes of valves at the specified pressurein the individual specifications. 5. weld repair the manufactuer shall submit the document of weld repair procedure including W.P.S for hastelloy casting. 6. Certification all certification shall be in accordance with the ASTM reference standard and this specification. 7. Marking 1) product marking shall be ASTM reference standard,which shall have no detrimental effect on the material. 2) zirconium products shall be marked r tagged in accordance with the ASTM reference standard, marking method or materials shall have no detrimental effect particularly when the product is heat treated. 3) MES's code no. of marking item specified in marking system for piping materials (doc. no 30-AS1131) shall be as follows ; - valve item code - valve no. specified in the quantity list (EX.J24WX3-1) . ========================================================== Pls inform if you can offer or not today . Should you feel any questions, pls feel free to contact us anytime. Looking forward to hearing from you by today. Thanks and best regards Cho Won-Jung /Y.E.S ENCHEM CO.,LTD E-mail: yesenchem@dreamwiz.com , yesenchem@paran.com , yesenchem@empal.com Mobile : +82-11-9896-3297 **** Hidden Message ***** won-jung cho SEOUL KOREA SEOUL, AL 140-013 KOR Company: YES ENCHEM E-mail: yesenchem@paran.com **** Hidden Message ***** yesenchem@paran.com |
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