被两个黑人玩得站不起来了,放荡少妇呻吟张开腿任人玩,末发育娇小性色xxxxx,99久e在线精品视频在线,波多野结衣久久精品99e,黑人巨大JEEP日本人,亚洲一线产区二线产区精华,女人毛毛扒开自慰,国产成人AV永久免费观看,日韩精品无码一级毛片免费

Drilling number
Drilling number
  • International
  • Canada
  • US
  • 560

    Daily drilling / station

  • 186

    Daily drilling / station

  • 544

    Daily drilling / station

Crude oil prices
Crude oil prices
  • US crude oil
  • Brent
  • Latest price (USD / barrel): 59.09

    Highest:59.17 Lowest:58.27

  • Latest price (USD / barrel): 63.06

    Highest:63.24 Lowest:62.72

TOP
Product center

Products

Home > Products > Valves > Check Valves > Lift Check Valve

Products

Product name:Lift Check Valve-LC

Product introduction:Lift Check Valve are spring return type unidirectional valves with guide rod for reliable sealing. Designed for use in high pressure mud choke manifold, high pressure Christmas Tree, choke and kill lines, it is available with rated pressure of 2000-20000psi and size of 1-13/16"-7-1/16".

Product introductionTechnical ParametersApplication areasDownload certificate

Product description

LiftCheck Valve are spring return type unidirectional valves with guide rod forreliable sealing. Designed for use in high pressure mud choke manifold, highpressure Christmas Tree, choke and kill lines, it is available with ratedpressure of 2000-20000psi and size of 1-13/16"-7-1/16". 

Features:       

01.Various end connections are available: flange, clamp , welding end and 3 kinds of mixedend connections. 

02.Metal to metal seal surfacing welded cobalt base between disc and seat eliminates nonmetallic seal due to chemical reagent and well fluid. Can be used in high temperature environment. 

03.Flowtype seat area design reduces fluid turbulence and improves body life. 

04.Low maintenance cost: no need for short term regular lubrication and maintenance.