久久人人97超碰精品888 I 亚洲欧美日韩国产综合 I 99久久精品久久久久久ai换脸 I 白丝美女操出白浆 I 久久久久久欧美 I 日本国产极品诱惑 I 国产精品乱码久久久久久 I 成人综合日日夜夜 I 老司机午夜精品视频在线观看 I 精品亚洲成av人在线观看 I 9i免费看片黄 I 免费成人美女在线观看. I 999av电影 I 国产成人综合亚洲91猫咪 I 激情伦乱视频 I 久久麻豆一区二区 I 青娱乐极品盛宴一区二区 I 欧美精品久久99 I 成人激情视频免费在线 I 另类激情文学 I 国产片av在线免费观看 I 56国语精品自产拍在线观看 I 国产日韩视频在线观看 I 日本高清中文字幕有码在线 I 成人aaaa免费全部观看 I 天堂а√在线8种子蜜桃视频 I 国产成人免费视频 I 欧美美女啪啪 I 国产精品天干天干在观线 I 亚洲精品国产动漫 I 国模一区二区三区私拍视频 I 国产噜噜噜噜久久久久久久久 I 欧美三级乱人伦电影

Y44H Bellows Pressure Reducing Valve instructions  

Y44H Bellows Pressure Reducing Valve produced and sold by Baigang valve group,For temperature below 200 ℃ in steam, air, water, non-corrosive medium pipeline, so that through the body of the medium pressure remains constant to meet the needs of work. P1 before the valve inlet pressure from 1.0-0.1MPa, after the bellows relief valve outlet pressure P2 is 0.4-0.05MPa, the pressure difference between the valve before and after the valve is not more than 0.6MPa, nor less than 0.05MPa.  

Y44H Bellows Pressure Reducing Valve use principles and structure instructions

1, the media before the valve inlet pressure from the valve flap and the body open the gap into the body cavity so that the media pressure flow corrugated pipe portfolio box, bellows and the spring due to compression of the media pressure and compression, the valve flap with the valve stem Displacement, the valve flap to produce the closure of the valve body, the media before the valve deadline, after the valve does not make the media pressure supplement. When the pressure of the medium after the valve is reduced, the bellows is deformed by the diameter of the adjusting spring, causing the bellows to be deformed. The valve stem opens the valve flap. Reducing the pressure of the media after the valve has been filled with the valve body gasket. 

2, Bellows pressure reducing valve is composed of valve body, valve cover, valve flap, valve body sealing ring, valve stem, bellows, adjusting spring and other parts. The body cavity inlet is assembled with valve flap, valve body sealing ring and auxiliary spring, Auxiliary spring is to keep the valve flap and body sealing ring automatic seal, outlet body cavity assembly elastic sealing element (bellows) that is to ensure that the valve after the media pressure leakage and to overcome the pressure non-uniform compensation. Screw is to adjust the spring load pressure relief valve performance.

Y44H Bellows Pressure Reducing Valve main dimensions