Coppus Horizontal, Radially Split, Single Stage Steam Turbine RLA
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 RLA is a radially split horizontal turbine available in 8 frame sizes offering 1 to 1000 HP (745 KW). The RLA has a reputation as a low maintenance, easy to operate workhorse. Field proven to be an ideal choice for an economical backup or continuous drive for pumps and fans.
Wheel Diameter 12" - 22"
Max Power 60 - 1000 HP (44 - 745 kW)
Max Speed 4000 - 6000 RPM
Max Inlet Pressure 670 - 700 PSIG
Max Inlet Temperature 440°C
Max Back Pressure 105 - 165 PSIG
Inlet Diameter 3/4" - 4"
Exhaust Diameter 3" - 8"
RLA 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