蜜挑成熟时在线观看_欧美激情免费在线_中文字幕资源站_久草手机视频在线观看_精品国产片_91精品国产成人

Stop valve for dark bar ammonia

Dateline:2014-11-30    Hits:

Product performance specification for Products Perfomance specification

A, use and performance specification

Pressure rating at room temperature test pressure (Mpa)

Housing sealing seal test

Nominal pressure (Mpa) 1.6 2.4 1.76 1.76

2.5 3.75 2.75 2.75

4 6 4.4 4.4

Application of the temperature of -40~+80 DEG C

Applicable medium ammonia, liquid ammonia, natural gas, liquefied petroleum gas,etc.

This valve is used in the city of liquefied petroleum gas storage station, is also used inoil refineries, petrochemical plants, liquefied gas system in petrochemical plant, as theopening and closing device control medium cut

Two, the operating principle and structure

1, the hand wheel clockwise turn, the valve rod to move downwards, the valve flap down so that the sealing surface of sealing, the channel cut off. The downturn is open, the valve rod sealing effect referred to the highest point.

2, the valve sealing a increased. In the valve open state, and filling the role with two seals, and has certain protective function to the filler

3, the valve using nylon products as a sealing cover, packing soft forming filler, the seal for the soft material, good sealing performance.

Three, the material of main parts:

Part name materials

The valve body valve cover WCB LCB CF8

Stem Cr13 F304

The valve clack of nylon 1010 F4 babbit alloy (B)

The valve stem nut Cr13 F304

Stuffing PTFE + NBR

Shim XB450

Handwheel nodular cast iron

Four, the main dimensions and connection dimensions:

DN L D D1 D2 B F Z-D H D0

15130956545162 with 4- 14207120

201501057555162 with 4- 14217120

251601158565162 with 4- 14219120

3219013510075182 with 4- 18280160

4020014511085183 with 4- 18330200

50230160125100203 with 4- 18350240

65290180145120223 with 8- 18400280

80310195160135223 with 8- 18430320

100350135190160243 with 8- 23465360

125400270220188283 with 8- 25558400

150480300250218303 with 8- 25611400

200600360310278343 with 12- 25710450


手機網站

主站蜘蛛池模板： 日本综合色 | 在线看黄色网址 | 国产精品永久在线 | 日本不卡在线视频 | 国产福利影视 | 国产传媒免费在线观看 | 国产羞羞 | 日本三日本三级少妇三级66 | 视频国产精品 | 天天插天天操天天干 | 手机天堂av | 免费在线成人 | 日韩不卡毛片 | 91一区二区三区在线观看 | 亚洲在线成人 | 国产性av| 91一区二区三区在线观看 | 国产精品理论在线 | 综合色婷婷 | 欧美 日韩 精品 | 免费观看黄一级视频 | 亚洲精品一二三四区 | 日韩av在线播 | 久久国产91 | 国产精品99久久久 | 欧美一级欧美三级 | 久久久青草 | 国产精品xxxx | 美女国产网站 | 九九热免费在线视频 | 青青草华人在线视频 | 国产精品成人免费 | 亚洲精品久久久久久一区二区 | 国产a级黄色片 | 免费日韩一区 | 婷婷五月色综合 | 99在线观看精品视频 | 人人插人人干 | 视频二区三区 | 翔田千里一区二区 | 97色在线视频|