Twin Disc
Orifice body for Twin Disc transmissions
This orifice body regulates fluid flow within Twin Disc transmission systems. It is designed to maintain precise pressure and flow control for internal hydraulic circuits.
Specifications
- Part number
- 203073A
- Brand
- Twin Disc
The orifice body is a precision component utilized within hydraulic and fluid systems to restrict and regulate the flow of oil. By creating a controlled pressure drop through a calibrated opening, this part manages the speed of actuators, regulates lubrication points, and maintains specific pressure levels within the transmission assembly. It serves as a critical element in ensuring the correct operation of complex hydraulic circuits found in heavy machinery and marine power transmission systems.
Part 203073A is engineered specifically for use in Twin Disc transmissions. Within these units, the component is responsible for managing lubrication oil flow, controlling clutch pressure, and assisting in the timing of gear shifts. Its precise dimensions ensure consistent flow characteristics, which are necessary for the operational efficiency of the transmission system. Proper maintenance of this component is necessary to avoid erratic transmission behavior or inadequate lubrication of internal parts.
In hydraulic systems, orifice bodies function by limiting the volume of fluid passing through a specific point. This regulation is fundamental for balancing pressure across different branches of a circuit, allowing for predictable response times and stable performance under varying load conditions. Maintaining the integrity of the calibrated orifice is essential for the overall health of the transmission.

