无码人妻久久久一区二区三区-女人被男人躁得好爽免费视频-国产日韩在线时看高清视频-91娇喘????白丝动漫-久久婷婷五月综合色精品

National standard lift check valve

Products > Check valve > National standard lift check valve

National standard lift check valve

Model: H41W / H
Nominal diameter: DN50 ~ 400mm
Pressure range: PN10 ~ 160MPa
Working temperature: -196 ℃ ~ + 560 ℃
Main material: carbon steel, stainless steel, alloy
Design and manufacture: GB12236
Structural length: GB12221
Connecting flange : JB / T79-1994
Test and Inspection: JB / T9092-1999
Contact purchase
shared:

Product Overview
 GB lifting check valve for medium and small diameter pipeline pressure, temperature and medium control connected or cut off the pipeline medium opening and closing device; rely on valve flap weight and fluid pressure to automatically stop the fluid Backwards.
 

Features

1, when the medium flows into the valve body by the arrow of the body, the pressure of the medium acts on the valve flap to generate an upward thrust force, and when the medium thrust force is greater than the gravity of the valve flap, the valve is opened. When the valve medium pressure on the role of the valve with the force of the valve itself is greater than the pressure before the valve pressure on the role of the valve, the valve closed to prevent the media back. 
 2, GB lifting check valve has the advantages of simple structure, reliable operation, easy maintenance, etc., widely used in purification equipment, petroleum, chemical, metallurgy, electric power, textile and other production processes.

 

Performance specifications

Body materialNominal pressure 
       (MPa)
Working temperature 
       (℃)
Suitable media
Carbon steel1.6-6.4≤425Water, oil, steam
10.0,16.0≤450/
Stainless steelP1.6-16.0≤200Nitric acids
R//Acetic acid
Chrome nickel-titanium 
heat-resistant steel
PI1.6-6.4≤550Oil, petroleum products
Chrome-molybdenum steel1.6-16.0≤550oil

 

The main dimensions

PNDNThe main connection sizeOverall 
dimensions
LDD 1D 2D 6bff 1Z-φdH
1.6MPa4020014511085-162-4-1895
50230160125100-162-4-18105
65290180140120-182-4-18120
80310195165135-203-8-18130
100350215180155-203-8-18140
125400245210185-223-8-12155
150480280240210-243-8-23180
200600335295265-263-12-23215


主站蜘蛛池模板: 黑人巨大无码中文字幕无码| 精品久久久久久无码国产| 欧美性受xxxx白人性爽| 精品国内自产拍在线观看视频| 少妇又紧又色又爽又刺激视频| 人人妻人人妻人人片av| 日本黄漫动漫在线观看视频| 青青青爽视频在线观看| 怡红院精品久久久久久久高清| 中文字幕无码第1页| 日韩欧美中文字幕在线三区| 国产日韩欧美久久久精品图片| 国产日韩av无码免费一区二区| 久久青青草原av免费观看| 午夜性色吃奶添下面69影院 | 亚洲综合欧美制服丝袜| 国产午夜鲁丝片av无码免费| 午夜伦4480yy私人影院久久 | 三上悠亚在线精品二区| 亚洲精品区午夜亚洲精品区| 久久www免费人成看片入口| 国产成人免费高清激情视频| 久久免费精品视频| 日韩内射美女片在线观看网站| 2019最新国产不卡a| 18禁止观看强奷免费国产大片 | 中文字幕乱码在线人视频| 亚洲精品一区二区三区在线观看 | 18禁勿入午夜网站入口| 成人网站av亚洲国产| 国产成人亚洲精品无码青app| 久久精品国产99精品国产2021| √8天堂资源地址中文在线| 久久久www免费人成精品| 精品午夜福利在线观看| 国产久久精品| 国产一区二区在线视频| 鲁大师在线视频播放免费观看| 老太脱裤子让老头玩xxxxx| 国产成人无码18禁午夜福利免费| 国产女人18毛片水真多18精品 |