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mechanism (30) is formed on an outer side of each valve plate. The mechanism allows the reciprocation of each piston to discharge refrigerant gas that is compressed in the corresponding compression chamber to the discharge chamber (28). Each valve plate has multiple suction ports (31) and discharge ports (32). Each suction port and each discharge port corresponds to one of the cylinder bores. A first metal plate and a metal gasket (34) are located between each valve plate and the corresponding cylinder block. Both sides of the gasket are coated with rubber. Each first plate has several suction valve flaps (33a). Each flap selectively opens and closes the corresponding suction port. As shown in Figure 3, the gasket includes an annular outer seal (36a), annular inner seal (36b) and several retainers (36~). Each retainer defines the opening of one of discharge valve flaps (35a). The hole portions (36d), through which the bolts (15) are inserted, are formed between the outer seal and the inner seals. The inner seal is connected to the hole portions and the outer seal by multiple connectors (36e). A higher pressure in the discharge chamber (28) lowers the contact pressure between the farthest ends of the bulkheads (12a, 14a) and the inner seals, and the contact pressure between the valve plates and the inner seals. In these low contact pressure areas, some part of each inner seal is separated from the valve plate. This reduces the contact area between the inner seal and the valve plate, reducing the sealing between the suction and discharge chambers.
๐ SIMILAR VOLUMES
## NEWS oils or other light fluids (below 32 SSU) at volumes up to 8000 gpm and pressures to 500 psi. For non-continuous flow conditions, GTS Series pumps offer a dry-run capability which allows them to be used for unloading and tank stripping. GTS Series pumps are widely employed, often under t