GH & GHL Series Gas-Over-Oil Valve Actuators

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1 GH & GHL Series Gas-Over-Oil Valve Actuators Introduction Paladon s GH and GHL-Series use high pressure process gas to provide the energy required to power the actuator. To provide increased safety and reliability, the process gas acts upon hydraulic fluid stored in gas/hydraulic tanks, creating hydraulic pressure that is subsequently used to power the actuator. As standard, the gas-over-oil control system provides local open and close control using either the high pressure process gas, or via a hydraulic hand pump. Numerous additional control system options are available; including remote control and linebreak detection (high/low and rate-of-drop). Although gas-over-oil actuators and control systems are more complicated than direct gas type actuators, they offer many benefits including increased safety, reliability and operational lifespan

2 Key Features l Scotch-yoke and linear piston actuator configurations l Double-acting and spring-return actuator configurations l Low or high pressure control system packages available l Full enclosed manifold controls with lockable cover l Hydraulic manual override standard l Local operation using power gas standard l Speed control in both directions standard l PED or ASME approved gas/oil and power gas storage tanks l Actuators certified to IP66M l Actuators certified in accordance with PED 93/27/EC Performance Data l Supply Pressure Range 90 to 3,625 psig (13 to 250 Barg) l Torque Output Range l Thrust Output Range 1,770 to 4,425,000 lbs.in. (200 to 500,000 Nm) Up to 50,000 lbs (222,000 N) Total Valve Control

3 Control System Options In addition to custom gas-over-oil control systems, Paladon provides the following standard control system functionality: l Local manual control using a hydraulic handpump l Local control using power gas l Remote control using solenoid valves l Automatic high/low linebreak control using either a pressure pilot valve or electrical pressure transmitter l Automatic rate-of-drop linebreak control using either a mechanical or electrical linebreak sensor l Positional control using either 3-15 psig pneumatic positioners or 4-20 ma electrical positioners

4 Local Manual Control 1 Filter 9 Drain & Reducer 2 Ball Valve 10 Diffuser 3 Poppet Block 19 Pressure Relief Valve 4 Pressure Gauge 20 Flow Control Valve 5 Handpump Assembly 22 Pressure Regulator 6 Actuator 23 Pressure Relief Valve 7 Limit Switch 24 Pressure Vessel 8 Gas/Hydraulic Tanks 25 Non Return Valve Total Valve Control

5 Remote Control 1 Filter 12 Pressure Regulator 2 Ball Valve 13 Pressure Gauge 3 Poppet Block 14 Pressure Relief Valve 4 Pressure Gauge 17 Solenoid Valve 5 Handpump Assembly 19 Pressure Relief Valve 6 Actuator 20 Flow Control Valve 7 Limit Switch 22 Pressure Regulator 8 Gas/Hydraulic Tanks 23 Pressure Relief Valve 9 Drain & Reducer 24 Pressure Vessel 10 Diffuser 25 Non Return Valve 11 Ball Valve

6 Automatic High/Low Linebreak Control 1 Filter 13 Pressure Gauge 2 Ball Valve 14 Pressure Relief Valve 3 Poppet Block 15 Filter Unit 4 Pressure Gauge 17 Pneumatic Pressure Switch 5 Handpump Assembly 18 Cam Operated Valve 6 Actuator 19 Pressure Relief Valve 7 Limit Switch 20 Flow Control Valve 8 Gas/Hydraulic Tanks 22 Pressure Regulator (optional) 9 Drain & Reducer 23 Pressure Relief Valve (optional) 10 Diffuser 24 Pressure Vessel (optional) 11 Ball Valve 25 Non Return Valve (optional) 12 Pressure Regulator Total Valve Control

7 Automatic Rate-of-Drop Linebreak Control 1 Filter 14 Pressure Relief Valve 2 Ball Valve 18 Cam Operated Valve 3 Poppet Block 19 Pressure Relief Valve 4 Pressure Gauge 20 Flow Control Valve 5 Handpump Assembly 22 Pressure Regulator 6 Actuator 23 Pressure Relief Valve 7 Limit Switch 24 Pressure Vessel 8 Gas/Hydraulic Tanks 25 Non Return Valve 9 Drain & Reducer 26 Needle Valve 10 Diffuser 27 Pressure Sensing Pilot Valve 11 Ball Valve 28 Pilot Valve 12 Pressure Regulator 29 Reference Tank 13 Pressure Gauge

8 Additional Products l PN & HY-Series Scotch-Yoke Actuators PN & HY-Series actuators are high performance pneumatic and hydraulic scotch-yoke actuators designed to operate any quarter-turn mechanism in both double-acting and spring-return configurations. l PNL & HYL-Series Linear Actuators PNL & HYL-Series are high performance pneumatic and hydraulic actuators designed to operate any linear valve or mechanism in both double-acting and spring-return configurations. l Electro-Hydraulic Control Systems These systems use electric pumps to pressurize hydraulic accumulators to provide hydraulic power. Stand-alone units using solar panels are also available when local utilities are unavailable or unreliable. l Electro Hydraulic Positional Control Systems Suitable for both Choke and Control Valve applications, operating from either existing ring main or self-contained power sources. Available for both Offshore Hazardous locations and Industrial Power Generation l DG-Series Direct Gas Actuators DG-Series actuators are typically used in gas pipeline applications in which the pipeline gas is used directly to power the actuators. l Subsea Actuators The rugged and flexible design does not require pressure compensation for depths down to 650 ft (200m). For deeper applications, a pressure compensated design is available for depths down to 6,500 ft (2,000m). l Autonomous Shutdown Valve (ASV) The ASV is designed to provide full automatic fail-safe operation of subsea valves to isolate pipelines from flexible risers Total Valve Control