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Hydraulic Valve Remote Control System

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HYDRAULIC VALVE REMOTE CONTROL SYSTEM OVERVIEW Nordic Flow Control’s compact design for our Hydraulic Valve Remote Control Systems does not compromise on power. Our systems operate at a higher torque level even with our smaller actuators. Submerged applications are available, and maintenance is possible even during operation. By having a hand pump in a deck box with solenoid valves, manual operations are now possible. Our Hydraulic Valve Remote Control Systems are tried and tested in the harshest conditions. The system consists of the hydraulic actuator, a power unit, solenoid valve cabinet, and the control station with operating system. Our actuators and control systems are able to match and operate valves with no limitations. BENEFITS • Able to operate bigger size valves with smaller actuators • Able to use for submerged applications • Cost efficient • Reliable • Able to operate at hazardous areas • Simplicity of design and control Nordic Flow Control Valve Remote Control Systems 1 COMPONENTS ACTUATORS Nordic Flow Control’s actuators are manufactured using sophisticated machinery in our own production plant. They convert hydraulic energy directly into a mechanical rotating movement by using the rack and pinion principle, elimi- nating cost from intensive servicing, maintenance and the sensitivity of transmission elements. Our actuators are created for durability, performance and cost effectiveness. Our new NRA series actuators are now more compact and provide higher torque at even smaller sizes. They have a longer life span, with higher efficiency. Polymer bearings for smaller actuators and ball bearings for bigger actuators are used to reduce friction between the parts. Mounting is according to ISO5211 standards, but can be customised to meet other requirements. With no need for valves to be dismounted, maintenance work during normal operations is possible, cutting down- time needed for repairs. A set of repair kit will be provided for every actuator supplied. Features • Compact and simple rack and pinion design • No external tubing • Replaceable brass rings • Submerged/Non-submerged • High reliability • Left chamber is equivalent to right chamber, and spares are interchangeable for the same model of actuators • Can be converted to spring return using the same actuator body • Bypass valve included for easy purging of line • Suitable for all Quarter-turn Valves • Adjustable OPEN/CLOSE positions • Meets the requirements from major classification authorities like American Bureau of Shipping, Det Norske Veri- tas, Lloyd’s Register of Shipping, Germanischer Lloyd, Bureau Veritas, China Classification Society and others • Suitable for Marine and Offshore applications Benefits • Minimal parts/spares purchase required • Maintenance is possible during “live” operations, with no need to dismount valve during servicing and mainte- nance • Ease of repair and maintenance Optional Equipment • Actuator-mounted Limit Switch (Continuous or ON/OFF) • Epoxy coating (Thickness and paint colour) • Submerged accessories • Emergency operation Hand Pump 2 Nordic Flow Control Valve Remote Control Systems A Closer Look At Nordic’s Actuators NRA SERIES DOUBLE ACTING ACTUATORS TECHNICAL SPECIFICATIONS Double Acting Hydraulic Actuator Single Acting Hydraulic Actuator Working Pressure 135 bar 135 bar Rotation 90o +/- 3o 90o +/- 3o Indication OPEN/CLOSE on shaft OPEN/CLOSE on shaft Protection IP65/IP68 IP65/IP68 Colour Black (Matte finish) Black (Matte finish) Hydraulic Media Recommended acid free hydraulic Recommended acid free hydraulic viscosity range 15 to 200 cSt viscosity range 15 to 200 cSt Working Temperature -15oC to 80oC (Standard) -15oC to 80oC (Standard) Nordic Flow Control Valve Remote Control Systems 3 TECHNICAL SPECIFICATIONS – ACTUATOR DRAWINGS 4 Nordic Flow Control Valve Remote Control Systems Nordic Flow Control Valve Remote Control Systems 5 CABINETS AND DECK BOXES Solenoid Valve Cabinet Nordic Flow Control’s Solenoid Valve Cabinet (SVC) centralised cabinet design houses all the non-IS solenoid valves that are used to control the direction of oil flow to the actuators. The solenoid valve cabinet is installed in safe, non- hazardous areas and the PLC I/O modules can be installed in the SVC per requirements. The SVC receives signals from the switches in the control consoles or from the computer system which activates the solenoid valves. Our SVC units come in standard 60, 72, and 96 control valve designs. The cable entry can be customised to be from the top, bottom or side to suit requirements. The Cabinet Consists of: • Solenoid Valves • Throttle Valves • Pressure Gauges • Feedback Indicator Switches • Quick coupling • CETOP 3 Manifolds • Flow switches and/or Volumetric Position Indicators (VPI) for ON/OFF or modulating feedback • PLC remote I/O Modules and necessary electrical components option in the processing compartment • High-Pressure Filter (Optional) TECHNICAL SPECIFICATIONS Working Pressure 135 bar Max Test Pressure 200 bar Fitting Connection 1/4” BSPP or 3/8” BSPP Intrinsically Safe Deck Boxes Nordic Flow Control’s watertight Deck Boxes with Centralised Intrinsically Safe (IS) solenoid valves are installed in hazardous areas. The cabinet consists of: • IS Solenoid Valves • Throttle Valves • Pressure Gauges • Feedback Indicator Switches • Quick coupling • CETOP 3 Manifolds • Flow Switches and/or Volumetric Position Indicators (VPI) for On/Off or modulating feedback • All barriers are located at the Safe Area • High-Pressure Filter (Optional) TECHNICAL SPECIFICATIONS Working Pressure 135 bar Max Test Pressure 200 bar Fitting Connection 1/4” BSPP or 3/8” BSPP 6 Nordic Flow Control Valve Remote Control Systems NORDIC’S Model SVC 60 Solenoid Cabinet is able to hold 10 manifolds, Totaling 60 Solenoid Valves. NORDIC’s Model SVC 72 Solenoid Cabinet is able to hold 12 Manifolds, Totaling 72 Solenoid Valves. Nordic Flow Control Valve Remote Control Systems 7 NORDIC’s Model SVC 96 Solenoid Cabinet is able to hold 16 Manifolds, Totaling 96 Solenoid Valves. Solenoid Valve Cabinet with Processing Cabinet 8 Nordic Flow Control Valve Remote Control Systems HYDRAULIC POWER UNIT Nordic Flow Control’s Hydraulic Power Unit (HPU) is approved for use on several vessel classifications and facilities. Its proven reliable and compact design allows it to be placed and used in confined areas. The HPU is designed for 100% standby. In the event of a power failure of the main input, the dual input feature enables the auxiliary input to cut-in automatically. The control unit consists of a local starter cabinet or a remote operation panel in the control console with a manual switch for selecting the pump to be operated, giving the end user the flexibility to control the necessary functions both remotely and locally. Nordic Flow Control Valve Remote Control Systems 9 Our HPU is delivered as a one skid-mounted unit, and it contains the following main components: • Oil reservoir with a capacity to be calculated depending on the number of actuators • Electric motors to be controlled from separate starters • Hydraulic pump • Valves and Manifolds • Accumulator and charging kit • Starter Control Panel and Control Panel • Sight Glass • Level Switches • Pressure Switches for START/STOP of pumps at preset values • Safety Valves • Pressure Gauge • Oil temperature monitoring The HPU has been reviewed as an extremely reliable power unit. From standard to customised units, they are very well designed. Our standard units come with two motors, for back up purposes and to extend the lifespan of our HPU. All motors, the electrical cabinets and all other equipment come with IP55 protection to ensure greater performance. Our HPU is designed to be user-friendly. The layout for the electrical and hydraulic components is placed systematically and the open design allows for easy access during maintenance. Features • Excellent dependability • Local and remote control • Low level, high pressure, high temperature alarms • Automatic and manual control for motor START/STOP • Backup reservoir allowing for auto transfer between the two reservoirs if needed • IP56 protection on motors electrical cabinet and equipment • Comes in three standard sizes of 150, 250 and 350 litres reservoirs TECHNICAL SPECIFICATIONS Reservoir Volume 150l 250l 350l Pump Capacity / 2 Pumps 7l/min 14l/min 14l/min Max Working Pressure 170 bar Electric Motor (2 nos) Voltage 440 V/60 Hz/3 Ph/4 pole Power Consumption 2.2 kw/each 4 kw/each 5.5 kw/each Bladder Accumulator 20l 50l 2 x 32l 10 Nordic Flow Control Valve Remote Control Systems Nordic Flow Control Valve Remote Control Systems 11 12 Nordic Flow Control Valve Remote Control Systems Nordic Flow Control Valve Remote Control Systems 13 HYDRAULIC SYSTEM ACCESSORIES Double Pilot Block The Double Pilot (DP) Block is designed to be used on both our NRA and NHR series of double acting actuators. It contains a throttling valve which is used for adjusting speed when regulating the valve’s opening and closing speeds. DP Block THROTTLE VALVE Features • A Double Pilot (DP) Check Valve with hydro-lock function to provide for loss of pressure in oil chamber caused by external factors • Throttling Valve for speed adjustment to minimise water hammering effect • A pressure relief valve set at 160 bars to prevent over-pressurising the actuators by releasing the hydraulic oil from the chamber if the pressure inside goes higher than 170 to 180 bar • A hand pump connection that allows emergency operation by means of a portable Hand Pump • Quick coupling to connect the hand pump
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