Abstract: Control of a Bowden-cable transmission requires dealing with varying frictional nonlinearity of the cable, which varies as the bend angle of the cable changes and degrades the performance of ...

今回は、「空気操作式バルブと電動バルブ」について。 各プロセス産業で最も一般的に使われている「空気操作式バルブ」 まだまだ発展途上でこれからの進化に期待がかかる「電動バルブ」 このまだまだ主流ではない「電動バルブ」のメリットをご紹介し ...

Pragma has developed an advanced downhole safety valve to create an improved well control solution for cable deployed Electric Submersible Pumps (ESPs) retrofitted to production wells. The new valve ...

Often arguments as to whether a linear or equal percentage trim is best are based on the theoretical inherent flow characteristics. Valve rangeability is often stated as simply a deviation of the ...

There is not an acceptable practice under any circumstances. Each circumstance has to be reviewed based on the safety integrity level required. Please refer to ISA Standards and Technical Reports, ...

Pressure-compensated flow control valves are useful in a variety of hydraulic applications. For example, they benefit situations where it is necessary to maintain a constant speed of operation of a ...