The packing seal ring is a floating seal and is specially designed for reciprocating compressor seals. The three-piece combined rings are connected together by clamping springs. They form an effective sealing surface by tightly close to the piston rod and cup groove surface under the action of gas pressure. The packing seal ring is a floating seal and is specially designed for reciprocating compressor seals. The three-piece combined rings are connected together by clamping springs. They form an effective sealing surface by tightly close to the piston rod and cup groove surface under the action of gas pressure. The sealing effect is controlled by lateral clearance and radial clearance. Different working conditions should be selected based on the characteristic variables of the material itself. The flow rate of gas between the cup grooves is controlled by the reciprocating motion of the compressor and the opening gap of the sealing ring.
Pressure reducing ring:The pressure reducing ring is installed in the end cup groove which closed to the cylinder and plays the main role of throttling and reducing pressure. Our company's pressure reducing ring components are divided into two types：monolithic type and combined type which can make corresponding selections according to different working conditions and customer needs. In the Nirvana standardized selection, the combination of two ring types can achieve a pressure reduction effect of more than 75% at 35MPa.
Sealing ring:The sealing ring is installed in the cup groove and plays the main role in sealing. Nirvana’s main sealing ring group can be divided into various types which covering 95% of domestic and foreign sealing ring structures, and is composed of multiple ring plates with different effects.One Zero leakage seal ring can achieve a sealing effect of 5~10Mpa in Nirvana's standardized selection.
