亚洲精品国偷生产在线,国产三级无码内射在线看,精彩国内免费久久久尖叫,自偷自拍三级全三级视频

Drilling number
Drilling number
  • International
  • Canada
  • US
  • 911

    Daily drilling / station

  • 194

    Daily drilling / station

  • 784

    Daily drilling / station

Crude oil prices
Crude oil prices
  • US crude oil
  • Brent
  • Latest price (USD / barrel): 78.78

    Highest:78.81 Lowest:76.22

  • Latest price (USD / barrel): 84.85

    Highest:85.34 Lowest:84

TOP
Product center

Products

Home > Products > Wellhead

Products

Product name:BPV

Product introduction:Back Pressure Valve is a type of valve used to control the flow of liquids or gases, and its function is to maintain a certain back pressure or backflow prevention in a pipeline system. On site use has two functions: 1) to protect the oil pipe from foreign objects falling into the pipe during installation,and 2) to prevent damage to the main valve on site. Pressure Valve can isolate the main valve from the downhole pressure

Product introductionTechnical ParametersApplication areasDownload certificate

Product description