SHINKO RB5 Horizontal Curtis Steam Turbine
HORIZONTAL CURTIS STAGE · REDUCTION GEAR · GOVERNOR VALVE
Model Information
Product identitySHINKO RB5 is a horizontal Curtis single-stage steam turbine with an integral reduction gear unit and a maximum output of 2000 kW. The RB5 train uses the turbine rotor, reduction gear, governor valve and trip device as linked mechanical and steam-control elements.
Within the SHINKO RB5 arrangement, steam enters the steam chest and governor valve path, the turbine stage produces shaft motion, and the reduction gear transfers that motion to the driven side. The governor and emergency trip paths act on the steam admission hardware rather than on an electronic rack.
Technical Specifications
Verified data| Technical item | Value |
|---|---|
| Brand | SHINKO |
| Product type | Horizontal Curtis single-stage steam turbine |
| Model | RB5 |
| Maximum output | 2000 kW |
| Maximum turbine-shaft speed | 7000 rpm |
| Output-shaft speed | 870–2000 rpm |
| Output-shaft rotation | CCW facing turbine toward driven machine |
| Maximum inlet pressure | 3.3 MPaG |
| Maximum inlet temperature | 425 °C |
| Maximum exhaust pressure | 0.5 MPaG |
| Steam inlet bore | 200 mm |
| Steam exhaust bore | 400 mm |
| Lubrication | Forced lubrication |
| Gland seal | Labyrinth packing |
| Governor | Woodward UG |
| Train arrangement | Turbine with integral reduction gear unit |
Operating Characteristics
Product focusSHINKO RB5 operates through a defined steam-to-shaft path: steam admission controls the Curtis stage, the rotor turns the reduction gear, and the trip device can interrupt admission.
The governor valve meters steam into the turbine stage through the steam chest. Steam admission is the input side of the RB5 control path.
The turbine rotor transfers rotation into the reduction gear unit before the driven output. The rotor is the mechanical handoff between the turbine stage and reduction gear.
The emergency stop path closes the steam-control route when the trip mechanism operates. Trip action interrupts the steam-control path before the driven output.
SHINKO RB5 passes steam from the chest through the governor valve into the Curtis stage before mechanical output reaches the gear unit. The steam-to-shaft sequence identifies which component performs each step.
System Integration
Integration focusThe SHINKO RB5 system integration is the physical connection of the steam chest, governor valve, emergency trip, turbine rotor, reduction gear and driven shaft.
The governor valve and trip device sit in the steam-control chain serving the turbine. The steam chest and governor valve form the controlled inlet interface.
The gear unit is downstream of the turbine rotor and defines the driven-side speed relationship. The reduction gear is the mechanical handoff to the driven side.
Labyrinth packing manages the gland boundary around the rotating shaft. The gland packing belongs to the rotating-shaft boundary.
SHINKO RB5 transfers the geared output to the driven equipment; the driven-side coupling is downstream of the reduction gear, not the steam chest. The driven-side coupling is downstream of the gear, not part of the valve path.
Common Product Questions
Field questionsWhere does the governor valve fit in SHINKO RB5?
Within SHINKO RB5, the governor valve is in the steam admission path at the steam chest. Confirm its connection to the turbine control and trip arrangement before commissioning.
How is the reduction gear used with SHINKO RB5?
On SHINKO RB5, the turbine rotor drives the reduction gear unit, which transfers the mechanical output to the driven side. Do not treat the gear unit as part of the steam-control valve.
What should be checked if SHINKO RB5 does not admit steam after a trip?
For SHINKO RB5, check the emergency stop/trip mechanism and the governor-valve position separately. The trip path must release the steam-control chain before normal admission can resume.
Why is gland sealing relevant on SHINKO RB5?
For SHINKO RB5, the labyrinth packing forms the sealing boundary around the rotating shaft. Inspect the gland arrangement when steam leakage is observed rather than changing governor settings first.
Can SHINKO RB5 be treated as a vertical turbine?
No. In SHINKO RB5, the RB5 arrangement is horizontal. Mounting, oil routing and gear alignment must follow the horizontal train geometry.
What does the 2000 kW value mean for SHINKO RB5?
On SHINKO RB5, the manual example identifies a 2000 kW RB5 installation reference. Confirm the actual site rating from the equipment record before using that value for selection.
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