国产午夜福利短视频-国产精品刘玥久久一区-亚洲无线一二三四区手机-国产网站视频-成人av黄色-欧美城天堂网址-性色蜜桃臀x66av-免费无码观看的av在线播放-久久国产精品成人片免费-天天噜噜噜噜噜噜-中文不卡视频-人人妻人人爽人人狠狠-四虎成人久久精品无码-久草视频免费看-久久视精品

American standard check valve is suitable for pressure Class150~2500LB, working temperature -46'C -- 570℃ in petroleum, chemical industry, pharmaceutical industry, fertilizer, power industry and other working conditions of the pipeline, to prevent the backflow of media.

Product model: H44W/H/Y
Nominal size: NPS 2" ~ 24"
Pressure range: CL150 ~ 2500 Lb
Operating temperature: -196℃ ~ +560℃
Main material: carbon steel, stainless steel, alloy steel
Design standard: API603M, ASME B16.34, API6D
Structure length: ASME B16.10
Connection standard: ASME B16.5, ASME B16.25
Pressure test: API 598
Pressure - Temperature class: ASME B16.34