快穿之奶汁尤物h婉婉,成品视频直播软件推荐哪个好用,无限看在线观看免费视频,a片扒开双腿进入做视频

Product Model: H41W/H
Nominal Path: DN50-400mm
Pressure range: PN10-160MPa
Working Temperature: -196 ~+560 Temperature
Main material: carbon steel, stainless steel, alloy steel
Scope of application: It is suitable for piping of tap water, food, pharmaceutical, electric power, petroleum, liquefied gas, steam, etc.

Product overview

The National Standard Lift Check Valve is used in pipelines of petroleum, chemical and thermal power stations with working temperature of - 29 - 560 C. Applicable medium: water, oil, steam, etc.

Design code

Design standard: GB/T12235

Structure length: GB/T 12221

Connection standards: GB/T 9113, JB/T 79, HG/T 20592

Pressure test: GB/T 13927, JB/T 9092

Pressure-temperature grade: GB/T12224

Product characteristics

1. The product has compact and reasonable structure, reliable sealing and excellent performance.

2. The sealing surface is made of alloy steel or cemented carbide. The sealing accessory materials are matched reasonably and the service life is long.

3. All kinds of piping flange standards and flange sealing types are adopted to meet various engineering needs and user requirements.

4. Its small size, light weight and good processing technology are one of the development directions of check valves.