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Poppet valves are recommended up to 15 MPa differential pressure or 30 MPa discharge
pressure and 600rpm.
Plate Type Valve
Reciprocating Compressor Basics Components
The plate type valve contains concentric rings of valve plates. The concentric ring
valve plates are a single element. Since the valve plate is made of a single element,
flow control is much easier when compared to other types of valves.
The stress act on the valve plate is much higher than the Poppet valve. These type of
valves are widely used compressor handling of Oil-free gases.
Permits a longer stroke and greater capacity.
Separates crankcase from the cylinder, allowing control of oil carryover into the cylinder.
The connecting rod is made up of forged steel for 150 kW (200 hp) reciprocating
compressor. For compressor less than or equal to 150kW, ductile iron material is
used.
The packing rings are the important element of rod packing assembly. The below-listed
packing rings are widely used in a reciprocating compressor.
Cross Head十字头
All industrial compressors are equipped with crosshead. The crosshead is used to
guide the piston in the cylinder bore. The following are the advantage of the crosshead.
Normally the piston is made up of less weight materials such as aluminium and aluminium alloys, this is to reduce the reciprocating compressor Shaking forces and Rod load. For larger diameter pistons, hollow type pistons are used to reduce the weight.
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