Showa Giken Pearl Rotary Joints are used for supplying/discharging compressed or decompressed (below atmospheric pressure) fluid/gas from a fixed piping to the rotary section of various machines with no leak. For example, they can be used when a heat transfer medium such as steam, hot water, or heated oil, or a coolant such as water, brine, ammonia, or Freon for cooling is supplied to rotating roll, drum, or cylinder, and when compressed air or operating oil is supplied to rotary machines such as clutch and chuck that are operated by fluid/gas.
These rotary joints have been developed based on the most recent and advanced mechanical seal theory, and are extremely effective and economical. They are manufactured under strict quality control and are compatible with one another with no deviation in the product. Furthermore, with a rich line-up of models, they can satisfy various purposes.
Pearl Swivel Joint
Pearl Swivel Joints are used when compressed or decompressed (below atmospheric pressure) fluid/gas is transported and the piping needs to be rotated or moved in the optional-direction of up/down, left/right, or forward/backward. Movable piping can be made easily, safely and at a low cost, and piping can be secured. These Swivel Joints can be rotated 360 degrees.
They have a large mechanical strength that ensures large radial/thrust load and moment load due to double-row ball bearings and grease lubrication. Since a ring-type packing such as O-ring is used in the sealing section, the structure remains simple while providing stable sealing that does not leak any pressurized fluid contained.PK series, for high-temperature application, is incorporated with lubrication-free bearings section, and the sealing section adopts PTFE material and the mechanical seal to provide stable sealing.