概述

固定球阀的球体，采用上、下两根阀杆固定，工作时，流体压力不会使球体向阀座移动，阀座不会承受过大压力而变形。阀杆部份设有自润滑轴承，减少磨擦，开关扭距小，两阀座均采用弹簧设预紧。密封采用聚氟乙烯镶入钢圈内，钢圈后部设有弹簧，保证阀座紧贴球体。当阀门中腔压力异常升高超过弹簧顶紧力，阀座后退脱离球体，达到自动泄压效果，压后阀座自动复位。结构的性使固定球阀的密封性能稳定操作省力，使用寿命长，极适用于长输管线和一般管线。

Summary

The sphere of Q47 type standing ball valve is fixed with upper and lower valve stems. When it works, for fluid pressure is unable to make sphere move towards valve base, the valve base won't be deformed for enduring over pressure.  There is self-lubricating bearing seton the part of valve stem to reduce friction, and its switch-torque is small. Both valve bases are pertensioned  by setting spring. Referring to sealing, adopt the way to inset polytetrafluoroethylene into steel-ring  with a spring on  its  rear end, which can ensure valve base cling to sphere. When the cavity pressure in valve transnormally excesses spring tension, valve base will back off ａnd separate from sphere to get the effect of automatic pressure release.The valve base will automatically reset after being pressed.  Thanks to advanced structure, the standing ball valve has stable sealing performance, labor-saved operation and long using life. It is es-pecially applicable for long conveymg pipeline and general pipeline.

全通径设计

按照客户的要求可以提供全通径

或缩径阀门，全通径阀门具有与管子

内径一致的通道直径，减少涡流

便于清扫管道。

Full bore design

According to the customer's

demand,the fullbore orthe redu-

ced bore can be provided. The f-

ull bore valve has the diameter of

channel completely equalto the

 in ner diameter of pipe to facilitat-

e to clean the pipe.

阻塞与排泄功能

固定球阀采用弹簧预紧，阀座密

封为双活塞．利用话塞原理密封．上

下游侧的阀座使流体阻断．阀体中腔

装放空阀排空，阀底装有排污阀排污，

Block & Bleed Function

 Fixed ball valve adopts spri-

ng to pretighten.And seat sealis

double pistons.lt adopts piston p-

rinciple to seaI.Upstr-Eam and d-

ownstream seats make fluid stop.

And the emptying valve installed

on the middle cavity is used to e-

mpty and the blowdown valve in-

stalled at the bottom of valve to c-

lear off dirt to facili-tate to clean

the pipe.

防火结构

万一发生火灾或异常升温使PT

FE软化烧损时，阀座支承圈防火密封

面可以和球体接触．起到密封作用且

符合AP1607和AP16FA

Fire-proof structure

When the fire happens orthe

temperatue unusually rises to m-

ake PTFE soften to damage.the

fireproof sealsurface of seat su-

pported circle can contact with b-

all to have seal function.This co-

nforms to therequirements of A-

Pl 607 and AP16FA.

防静电设计

采用铬镍不锈钢的弹簧和小球使

球体、阀杆和阀体之间相互导电，从

而把静电释放。

Anti-static design

Chrome and nickelstainless-

teel spring and small ball are ad-

opted to make electroconductive

among ball. Stem and body to co-

mpletely releasestatic.

设计、制造标准

1、设计、制造按GB/T12237-89 

2、连接法兰JB/T 79-94 

3、阀门检查和试验按GB/T13927-89   

Standard for design and manufacture

1、DesignManafacfure According to GB/T 12237-89

2、FlangeDimensionAccording tojBfT 79-94

3、valve Check and Test According to GB/T 13927-89

公称压力Nominal    PN(MPa)pressura

产 品 型 号Product Type

主要零件材料

Parts

Material

阀体

Body

WCB

ZG1Cr18Ni9Ti

CF8

CF3

ZG1Cr18Ni-

12Mo2Ti

CF8M

CF3M

球体、阀杆

Ball,Stem

2Cr13

1Cr18Ni9Ti

0Cr19Ni9-

（304）

00Cr19Ni11-

（304L）

1Cr18Ni12-

Mo2Ti

0Cr17Ni12-

Mo（316）

00Cr19Ni14-

Mo2（316L）

阀座

Seat

四氟乙烯、对位聚苯

适用工况

Applicable

Condrtion

适用介质

Applicable mediumt

水、蒸汽、油品等

Water，Steam，Oil

硝酸等腐蚀性介质

Netricalid Corrosive

强氧化性介质

Oxgen medium

醋酸等腐蚀性介质

Acetil acid coirosive medium

尿素等腐蚀性介质

Urea corrosive medium

工作温度（℃）

Working

Temperatdre

-29~150(四氟乙烯)    -28~300(对位聚葳)   

试验压力

（MPa）

Test pressure

壳体

Shell

1.5培

密封（液）

Sesl（liquid）

1.1培

密封（气）

Sesl（gas）

0.6MPa

蜗轮传动  Turbine

在手动型号的Q后插“3”表示，示例：Q347F-16C Represeting by“3”inserted befere manual“Q”

气动    Pheumatic

在手动型号的Q后插“6”表示，示例：Q647F-16C Represetingby“6”inserted befere manual“Q”

电动    Electric

在手动型号的Q后插“9”表示．示例：Q947F-16C Represeting by“9”inserted befere manual“Q”

附注    Remark

选用缩径球阀，在公祢通径数值后加S表示，示例：DN100S

Selecting reduce Bore,insert“S”affer figure of DN.