This means a significant increase in inlet pressure
and temperature (from an average of 190[degrees]C today to an estimated 246[degrees]C).
The valves are rated for 300 psig maximum inlet pressure
at operating temperatures ranging from 40[degrees] to 120[degrees]F.
Cylinders rely on inlet pressure
to generate the required force.
They are available as a fully UHV-compatible bolt-on instrument or with application-matched single or compound molecular beam inlet pressure
reduction stages, addressing a range of atomic and molecular studies.
Specifications include a large digital pressure display and a multi-color LED status display, 3000 PSIG (210 BAR) maximum inlet pressure
, 0[degrees]F to 140[degrees]F temperature range, and 50 to 250 PSIG (0 to 17 BAR) adjustable pressure range, 1.0 Cv.
Typical urea production conditions include an inlet pressure
of 3,500 psig, an outlet pressure of 300 psig, an operating temperature of 350[degrees]F, and a flow rate of 8 million SCFH.
* No air entrapment: The high pump inlet pressure
prevents air inclusions from reaching the gear teeth, so that air does not reach the die and thus is not contained in the preform produced.
It's "balanced." meaning that the outlet pressure, commonly known as back pressure, can be as high as the inlet pressure
without affecting performance.
As inlet pressure
and flow vary, pressure-reducing regulators are designed to maintain outlet pressure, deliver accurate, consistent pressure to processes and process equipment, and protect sensitive equipment.
Based on the I-D Darcy's law and constant inlet pressure
, Cai proposed two principles of design: (1) the arrangement of the vents should assure the shortest filling path, and (2) the line gates or the gate should be arranged on the larger side such that the fluid be injected from the larger side to the smaller side and the applied pressure required is thus reduced.
This tandem arrangement helps with the higher-viscosity materials and ensures that the metering pump always "sees" the same inlet pressure
, regardless of viscosity.