Each cylinder discharge line should have a relief valve located upstream of the cooler. Like all reciprocating devices, the piston will continue to increase pressure…
Category: Compressors
These valves isolate the compressor. Most operators require both shutdown valves to be automatic. Some operators use manual valves on small onshore compressors. If the…
A blowdown valve relieves trapped pressure when the compressor is shut down due to a malfunction or for maintenance. The flowsheet shows an automatic blowdown…
A speed controller can help extend the operating range and efficiency of the compressor. As the flow rate increases, the compressor speed can be increased…
A suction pressure throttling valve can also be installed to protect the compressor from too high a suction pressure. This is typically a butterfly valve…
As flow rate to the compressor increases, the suction pressure rises until the volume of gas at actual conditions of temperature and pressure compressed by…
Most gas lift, flash gas, and vapor recovery compressors require a recycle valve because of the unsteady and sometimes unpredictable nature of the flow rate.…
Similar to multistage centrifugal pumps, centrifugal compressors, as shown in Figure 10-9, use a series of rotating impellers to impart velocity head to the gas.…
Screw compressors are rotary positive displacement machines. Two helical rotors are rotated by a series of timing gears as shown in Figure 10-8 so that…
Rotary compressors are positive-displacement machines. Figure 10-7 shows a typical vane compressor. The operation is similar to that of a vane pump. A number of…