高清性色生活片免费播放网,亚洲综合色区另类AⅤ,无码精品人妻一区二区三区AV,99视频国产精品免费观看

Current Location:HomeProductsButterfly valveLined valve Lined valve

Lined valve

Features:

Upper and lower set of Belleville springs put pressure to keep the two sealing surfaces of the stem seal together resulting in a superior TA-Luft / VDI 2440 approved. tem seal.

The elastomer back-up pads behind the liner ensure a tight fit around the disc, for a bubble tight shut-off.

The liner provides a wide flange sealing surface.

A one piece thin disc stem lined with 3 mm molded PFA providing high Kv values.

The liner and disc are the only two valve parts in contact with the medium.

Primary shaft sealing by preloaded contact between disc and liner hub.

Secondary shaft seal by oversizing the shaft diameter in relation to the shaft hole in the liner.

The liner and disc are molded and machined to close tolerances to provide:

  • low torque
  • less stress and deformation during opening and closing

Vacuum tests with helium with pressures less than 20 Pa absolute (0.2 mbarA).

Optional TFM lining available for extremely demanding applications.

Integral body locating holes to ensure perfect centering of the valve.

Actuator flange and stem dimensions acc. ISO 5211.

Specifications:

Certifications PED, Fugitive Emission, CUTR, CRN, CE

End Connection Lugged, Wafer

Body Design Short Pattern

Material Ductile Iron

Operating Temperature Less Than 200 C

Pressure Class PN

Seat/Seal Type Lined

Valve Size Standard DN

Media Aggressive Liquids/Gases


View Detail
久久婷婷人人澡人人爽人人爱| 无码人妻久久一区二区三区APP| 亚洲 欧洲 无码 在线观看| 欧美精品videosse精子| 粉嫩被粗大进进出出视频| 国产超碰人人模人人爽人人添|