Coppus Horizontal, Axial Split, Single Stage Steam Turbine RLHA
For over 80 years COPPUS steam turbines have been recognized around the world as rugged, versatile drive solutions for lube oil pumps, feed water pumps, fans, generators and other mechanical drive applications. COPPUS turbines are routinely speciﬁed by the petroleum, petrochemical, chemical, sugar, paper, food processing and other industries that require continuous or standby emergency power.
The RLHA turbine is an axial split horizontal turbine with split sleeve bearings, available in 4 frame sizes offering up to 4,000 HP (2,980 kw). The axial split casing allows easy access for on-site inspection and repair. The time-tested reliability of the RLHA turbine makes it an ideal selection for continuous operation applications for pumps, fans and generators operating in the most demanding industrial environments.
Wheel Diameter 15" - 28"
Max Power 450 - 4000 HP (333 - 2980 kW)
Max Speed 5500 - 6300 RPM
Max Inlet Pressure 600 - 900 PSIG
Max Inlet Temperature 400 - 570°C
Max Outlet Pressure 105 - 300 PSIG
Inlet Diameter 3" - 6"
Exhaust Diameter 6" - 10"
RLHA Over-speed Trip System
Meets API 611 standards
The snap-acting bolt type trip mechanism introduced by COPPUS in the mid 80s set new industry standards for Overspeed Trip Systems. The independent system stops the turbine under any load condition by activating the force-actuated trip valve. It is capable of three consecutive non-trending trip-outs within +/-2% of set trip speed.
The Overspeed Trip Collar, installed on the turbine shaft, houses an adjustable, spring loaded bolt. The bolt is retained until a pre-selected trip speed is reached. When the turbine shaft exceeds the selected speed the bolt is instantly released to unlatch the trip valve. The snap-action tripping is positive, precise and repeatable.
The Overspeed Trip Valves are designed to minimize pressure drop ensuring the highest available pressure at the nozzle ring for doing work. When released by the Overspeed Trip mechanism or the manual trip lever the valve is instantly closed to shut off steam. The single-seated valve will bring a fully, unloaded turbine to a complete stop. For manual resetting against full-line pressure, a pilot valve relieves unbalanced pressure.
Standard features on COPPUS Turbines include:
Meet or exceed strict API 611 requirements
Overspeed mechanical trip valve
Snap-acting overspeed trip
Woodward TG direct drive oil relay governor
Constant level sight-feed oilers
Stiff shaft construction with single disc wheel located between bearings
Manual speed changer
Single piece contoured Curtis type wheel
Optional Features for COPPUS Turbines Include:
Forged steel wheels
Special shaft materials
Part load and overload hand valves
Kingsbury? thrust bearings
Copper free construction for corrosive atmospheres
Single row wheels
Lagging, "blanket type" insulation
High back pressure construction
Electronic or hydraulic NEMA Class D governors and variable speed controls
Solenoid trips for remote shutdown
Extended inlet pressure and temperature constructions