99久久精品费精品国产-玩弄丰满奶水的女邻居-色婷婷欧美在线播放内射-四虎精品成人免费视频-亚洲精品一区国产

Emergency shut-off valve

Dateline:2014-11-30    Hits:

A, use and performance specification:

This valve is a safety protective valve, installed in the liquefied petroleum gas (gas),liquid and gas pipeline, and supporting the use of long distance gas source, the use of gas control valve open close, so that occurs in a pipe or tank large leak even when the fire started, the fast manual so that the gas source pressure relief, or high temperature is greater than or equal to 75%%p5C%%D when the fusible alloy melts,while the cylinder automatic pressure relief, rapid closure of the valve and the leakage stopping, play the role of security protection.

The working principle, control two

The valve air entrance installed by a two position three way electromagnetic valve,electrical appliances using a remote console control valve switch.

1 gas leak alarm alarm energized, solenoid valve exhaust, the valve is automatically closed.

2 manual control solenoid valve (press the red clip) exhaust, the valve is automatically closed.

Three: the main performance specifications

The pressure cylinder working pressure rating of 2.5/4.0Mpa is less than or equal to 2.0Mpa

Using the temperature of -40~+80 DEG C cylinder using the medium nitrogen ` dry air

Using the medium of natural gas, liquefied gas, the closing time of plus or minus 70 DEG C melting

Closing time less than 5 seconds to open the cylinder pressure is greater than or equal to 0.5-0.7Mpa

Four main parts: material

Parts name material

The valve body valve cover of carbon steels

Cylinder, piston nodular cast iron

O type sealing ring, Sichuan PTFE, NBR

Spring 50CrVA (Dan Huanggang)

Pneumatic emergency cut off valve installation size

The maximum flow DN-JIS L: L / Max.FIoW/min

Mm in

251 "160160

32 1-1/4 "200400

40 1-1/2 "200400

502 "240640

803 "2831600

1004 "3052500

1506 "4033300

2008 "5025900


手機網站

主站蜘蛛池模板： 日韩精品一区中文字幕| 国内精品自在拍精选| 伊人色婷婷一区二区三区av| 黄色一片一区二区| 亚洲国产天堂精品一区二| 成av人一区二区三区久久| 2020亚洲国产精品久久久| 日本丰满熟妇hd| 久久久久99精品成人片欧美| 国产精品天干天干| 亚洲成a人v欧美综合天堂麻豆| 国产午夜福利在线机视频| 又湿又黄裸乳漫画无遮挡网站 | 成人有色视频免费观看网址| 野花社区在线观看视频| 无码人妻丰满熟妇区毛片| 国产主播在线观看一区二区三区| 人妻无码系列一区二区三区| 中文字幕久久综合伊人| 欧美日韩精品一区二区在线视频 | 狠狠色狠狠色五月激情| 日韩毛片无码永久免费看| 婷婷开心色四房播播| 欧美色就是色| 久久久久久免费毛片精品| 日韩一区二区高清视频在线观看| 自拍性旺盛老熟女| 伦人伦xxxx国语对白| 成人高潮视频在线观看| 免费吃奶摸下激烈视频| 老头边吃奶边弄进去呻吟| 国产美女久久精品香蕉69| 日韩女同视频一区| 丰满岳乱妇一区二区三区| 亚洲欧洲无卡二区视頻| 夜夜爽夜夜叫夜夜高潮漏水| 日韩在线不卡免费视频一区| 日本无遮挡真人祼交视频| 亚洲色成人网站永久| 色偷偷久久一区,二区| 日本一区二区高清免费在线观看|