当前位置:首页 >> 机械/仪表 >>

球阀检验规程


WI-Test procedure Inspection rules for finished products
1. Scope: It is stipulated in this document that of contents,requestments,methods and judgement of quality for finished products’

inspection and test. It can be applied to various kind of valves’ final inspection and testing.. It should subject to requestments from contact while there happens discrepancies
between that of contact and this documents.. 2. Apprearance: 2.1.1 Products should be free from burrs,clean,sharp edges, corners and other defectives.

2.1.2 Marks on valves body ,hanlde and other position should be exactly and clear. 2.1.3 No machining products or servely scras not allowed.And the surface should be clean
wiouth any marks by water,glue or other pollution.

2.1.4 Quality for surficial treatmnet, such as sanding,polishing, chroming and painting,
viscoplasticity should be correspond with provision indicated on related file and contract requestments.

2.1.5 Plastic and other nonferrous matal parts and stell filter cannot be severly strained and cracked. 2.2 Assemble 2.1.1 parts fit a. Valve body, bonnet and other related parts should be good coordinated. Installation stateshould be in accord with provisions from assemble drawing and related technical papers. b. Handle and stem shold be tight and compact fited.no visible clearance and deviation.No loosening existed after tightest closed the handle. Valve seat must not be anti-assembled.There is little biger deviation or exposure between valve seat and flow hole.. 2.2.2 testing ON or OFF a. Discs should be easily to open and stop.And handle is good,in a stress manner and no jam.. b.Discs,hanlds and stems should be free from severly distortion or sracths when turn it ON or OFF. c. The connect condiction between Discs’(like clack,gate,globe)switch and other positons should be with elastic pretightening force and allowance adjustable in sealed
condition.And also be in accord with related sample image and technical papers’reqestment. 2.2.3. . The angle between globe and valve body’s through hole centreline should follow requestments as below:. a.Valve steat(ball) must expose less than 0.5mm. while being over-positioned. b.valve seat may expose when ball hole off-centre or incrroect mounting postion.

----less than 0.8mm with size smaller than 1” ----less than 1.3mm with size biger than 11/4” 2.2.4 Handle angle

When ball valve be full open,the direction of handle should be the same as that of valve axis.And they would meet at right angle when full closed.The Max.angle between these two madia be 3 degree 2.3 Packing 2.3.1: Packing objects should be free fromcontamination, molded,damp and damaged. Its construction and material shoud be correspond with requestments from related documentaiton. 2.3.2 Marks in the packing should be clear and exactly.And the marks is the same as it in the products body. Mistakenly,mixed or neglected cannot be allowed.
2.3.3 Packing way,outer-carton’s sealing,wiring state should be confirmed with requestments from related documents. 2.4: Others If there is any requestments for products’ weight,construction,size or other program.It should be accord with those of requestments. 2.4 body and sealing function valve body,bonnet and other parts composed to be set valve.The discs and valve parts which requested sealing function should be with good quality.No leaking. 3. Finished products will take skip-lot sampling inspection.It will be as one inspection batch when takes same items and specifications at one time. 3.2: AQL lever a. Products with disqualify reah accumulative total AQL=2.5(inspection accoring to clause 2.1-2.5) b. Products with disqualify reah accumulative total AQL=1.0(inspection accoring to clause 2.6)


相关文章:
阀门检验标准(新)
不锈钢法兰球阀、内螺纹球阀检验标准 XX 公司 标题 阀门检查标准 文件编号:C08-...阀门检验标准 8页 1下载券 阀门生产过程检验规范 7页 1下载券 ©...
球阀操作维护规程
球阀操作维护规程_能源/化工_工程科技_专业资料。GC/SB-1: 1 范围 球阀操作、...其它类型的驱动 5.2.2.1 查阅阀门执行器的维修手册或标准以确定合适的检验...
出口阀门检验规程
本技术规范审核人 :罗林、卢强、章晓阳 、李田 批准:罗林 1.范围 本规范规定了本厂生 产的截止阀、蝶阀、 球阀、闸阀及其驱动 装置的检验、试压 规范及准则...
阀门检验标准
球阀 AWWA A608 公称通径为 2~24in. 的给水设备用旋启式止回阀 MSS SP...阀门检验标准(新) 12页 1下载券 阀门检验与管理规程 8页 免费 阀门的检查...
阀门检查规范
设计文件和顾客对阀门检验和试验 另有要求时,应按要求进行。 2 规范性引用文件...没有规定流通方向的阀门,如闸阀、球阀,应分别从每一端引入介质和施压。有两个...
球阀技术规格书
钢制球阀 钢制阀门一般要求 通用阀门压力试验 金属表面处理 阀门的检验与试验 管路法兰及垫片 《钢制管法兰(欧洲体系)》 其它未列出的与本产品有关的规范和标准,...
阀门验收规范
阀门验收规范 1 范围 本标准适用于工业管道、公用管道用金属阀门的检验和试验。...没有规定流通方向的阀门,如闸阀、球阀,应分别从每一端引入介质 和施压。有两...
18球阀检修规程(2012版)
II Q/GDW 4654-001—2012-12218 球阀检修维护规程 1 范围 本规程规定了白莲...其中H点(hold point)为停工待检点,停工待检项目必须有用户代表参加,现场检验并...
阀门执行标准大全
《通用阀门法兰和对焊连接钢制球阀》GB8464-87《内螺纹连接闸阀、截止阀、球阀...《阀门电动装置寿命试验规程》JB/T6439-92《阀门受压铸钢件磁粉探伤检验》 JB/...
阀门检验与管理规程
阀门检验与管理规程_能源/化工_工程科技_专业资料。阀门检验与管理规程哈尔滨...蝶阀及耳轴装配球阀 — 需要 供选 注:①具有这种部件的阀门均必须进行上密封...
更多相关标签: