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A HYDRAULIC POWER PACK HAS BEEN DESIGNED TO BE USED WITH A 10T TENSIONER ( NOT INCLUDED WITHIN THIS BTI). THE POWER PACK IS CONTAINERISED WITHIN AN OUTER SHELL OF DUCTILE CAST IRON. CONTAINED WITHIN THE UNIT IS A SINGLE ELECTRIC MOTOR AND PUMP SET, OVERHEAD RESERVOIR, ELECTRIC MOTOR STARTER PANEL AND A HPU CONTROL PANEL. THE SINGLE ELECTRIC MOTOR DRIVES THE THREE PUMPS FROM A COMMON SHAFT. THE MAIN DRIVE PUMP, WHICH IS AN AXIAL PISTON OPEN LOOP PUMP, THIS PUMP OPERATES IN EITHER A LOAD SENSING OR A PRESSURE CONTROL MODE. THERE ARE VARIOUS VALVES WHICH ARE MOUNTED TO THE FRAMEWORK, WHICH ARE USED FOR THE PUMP CONTROL FUNCTIONS. THE GRIP/BRAKE PUMP IS A TANDEM GEAR PUMP WHICH USES A RELIEF VALVE TO LIMIT OUTPUT PRESSURE FROM EACH PUMP SECTION. THE RELISF VALVES HAVE VENTABLE PILOT LINES FITTED WITH BALL VALVES FOR DUMPING PRESSURE, WHILE STARTING AND STOPPING THE ELECTRIC MOTOR. THE SEAWATER/OIL COOLER IS USED TO DISSIPATE ANY HEAT WHICH MAY HAVE BUILD UP WITHIN THE SYSTEM, THE RETURN FLOW FROM ALL OF THE THREE PUMPS GOES BACK TO THE RESERVOIR VIA THE COOLER. THE STARTER PANEL CONTAINS ALL THE NECESSARY COMPONENTS FOR STARTING AND STOPPING THE ELECTRIC MOTOR, ALONG WITH ANY POWER TRANSFORMERS THAT COULD BE OPERATING WITHIN THE SYSTEM. ALSO, THERE IS A HPU CONTROL PANEL, THIS HOUSES THE PLC, WHICH IS USED TO CONTROL THE MAIN DRIVE PUMP FUNCTIONS, THERE IS ALSO A HUMAN MACHINE INTERFACE (HMI) PANEL THIS IS FOR IN-PUTTING THE VARIOUS CONTROL PARAMETERS. SPECIFICATIONS OF HYDRAULIC HPU POWER PACK: VOLTS : 440V AC, 3PHASE AMPS STARTING : 125A FREQUENCY : 60HZ POWER : 55KW COOLING WATER : 90 @ 10 MAX L/MIN @ BAR WEIGHT : 7.5 TE TANK VOLUME : 250 LTRS DIMENSIONS : L 3.10M X W 2.44M X H 2.7M THE HYDRAULIC POWER PACK IS EQUIPPED WITH 55 KW PUMP AND MOTOR SYSTEM, OIL RESERVOIR IS 250 LTRS. THE SYSTEM HAS AN AUXILLARY PUMP FOR TENSIONER OPEN AND CLOSE AND ONE BRAKE PUMP WHICH FEEDS A MANIFOLD BLOCK ON THE TENSIONER. THE OPERATING PRESSURE IS 210 BAR AND MAXIMUM FLOWS ARE MAIN PUMP 170 LTRS/MIN, AUX 16.5 LTRS/MIN, BRAKE 8.74 LTRS/MIN. OIL IS WATER COOLED.

HYDRAULIC ACTUATOR FOR FITTING TO A VALVE. OPENS AND SHUTS THE VALVE BY THE MEANS OF HYDRAULIC ACTION. AVAILABLE WITH SYMMETRIC AND CANTED YOKES. FOR USE IN A WIDE RANGE OF INDUSTRIES INCLUDING OIL AND GAS, CHEMICAL, REFINING, PULP AND PAPER, WATER AND WASTE WATER, POWER GENERATION AND NUCLEAR. OF STEEL. IMPORTED FROM CHINA AND USA.

HYDRAULIC ACTUATOR SYSTEM. A GAS/HYDRAULIC ROTARY ACTING CYLINDER FOR FITTING TO A VALVE THAT USES PRESSURISED GAS FROM THE PIPE LINE AS ITS POWER SOURCE. AUTOMATES VALVES LOCATED ON GAS TRANSMISSION PIPELINES. AVAILABLE IN ROTARY AND QUARTER TURN MODELS. OF ALUMINIUM.

A HELICAL SPLINE GAS OVER OIL ACTUATOR FOR A VARIETY OF SMALL VALVE (2" TO 8") PIPELINE APPLICATIONS. IT IS AN OIL FILLED ACTUATOR THAT USES HIGH PRESSURE GAS TAKEN DIRECTLY FROM THE PIPELINE AS A PRESSURE MEDIUM. THE ACTUATOR IS USED ON ROTARY QUARTER TURN VALVES.

A HYDRAULIC ROTARY VANE VALVE ACTUATOR, FOR OPEN/CLOSE OPERATION OF BALL, PLUG AND BUTTERFLY VALVES OR OTHER 90 DEGREE ROTATION EQUIPMENT. THE ACTUATOR IS TYPICALLY USED ON GAS OR OIL PIPELINES. IT IS TYPICALLY POWERED BY NATURAL GAS USING GAS OVER OIL TANKS BUT CAN BE POWERED HYDRAULICALLY OR BY NITROGEN STORAGE VESSELS. OPPOSITE CHAMBERS IN THE ACTUATOR ARE CONNECTED BY PRESSURE EQUALISING PASSAGES IN THE UPPER AND LOWER HEADS. IN THIS MANNER, THE ACTUATOR PRODUCES PERFECTLY BALANCED TORQUE AS HYDRAULIC FORCE SIMULTANEOUSLY PUSHES BOTH OF THE ROTOR VANES AWAY FROM THE STATIONARY SHOES. TORQUE OUTPUT OF THE ROTARY VANE ACTUATOR REMAINS CONSTANT THROUGHOUT THE FULL ROTATION OF THE VALVE.