4P / 4H - centork.com

1 Hydraulic and Pneumatic Actuators4P / 4H RangeKeeping the World FlowingThese special multi- turn actuators, apply the reliable Planetary Torque Controls System (PTCS), fulfilling requirements in certain industries for actuators with a hydraulic or pneumatic supply in multi- turn applications with position and applied torque of 4P and 4H actuators Pneumatic or hydraulic actuators designed to meet the needs of diverse actuation applications: Torque from 450 Nm (332 ) up to 200,000 Nm (147,556 ) when combined with an external worm gearbox Multi- turn torque: 30 to 8,000 Nm (22 to 5,900 ), combined with an external spur/bevel gearbox Linear thrust: 12 to 200 kN (2,697 to 44,961 lbf) PTCS patented planetary gearing system controlling the applied torque with high mechanical efficiency >95% Intrinsic mechanical torque limit protection Mechanical switch mechanism with a wide range of signalling options Lockable manual operation: motor drive priority Modular design, covering actuator with standard configuration up to actuator with control panels IP67/IP68, optional ATEX Environmental sealing.

2 Optional double-sealed terminal compartmentKey benefits The 4P/4H is position control blocked: the multi- turn hydraulic actuator is self-locking (through combination with the stem nut), as compared with a hydraulic linear cylinder that is non self-locking. Lubricated for life gearing with reduced maintenance requirements Mechanically protects to prevent excessive output torque using PTCS Designed to work efficiently and effectively under harsh conditions (vibrations)Actuator-valve couplingMeeting ISO 5210 or 5211 standards, the 4P/4H feature different coupling suitable for all types of motorThe reversible vane motor suitable for a wide range of supply pressures and flow rates (30 to 140 bar working pressure and 240 bar max pressure).Pneumatic motorReversible vane motor suitable for supply pressures from 2 to 7 The patented planetary gearing system High mechanical efficiency (>95%) Precise control of the applied output torque/thrust Silent service Highly compact and light weight design Increased Safety: PTCS provides mechanical protection against.

3 Overloading the valve External pressure regulator failure or deregulated inlet pressure Failure of any torque or limit switch Delays in the switching control system independent from valve inertiaEnvironmental sealing and protection Actuators are IP67 certified (IP68 as an option) Paint protection coatings for highly corrosive atmospheres (ships, offshore platforms) are available A double-sealing ingress protection version is also availableA4US US A4 US A4A4US4P / 4H Range4P / 4H RangeControl optionsActuator switch mechanismThe purpose of the actuator switch mechanism is to sense the valve position and torque. The actuator is fitted with a mechanical switch mechanism (MSM) that provides an instantaneous position. Torque is sensed mechanically, and IP67 rated micro switches provide end of travel indication as well as torque trip indication. Pneumatic ActuatorHydraulic ActuatorStandard elements: Mechanical switch mechanism (MSM) Adjustable stroke: turns (special version on request, up to turns) Torque setting, adjustable 60-100% of rated torque DPDT torque switches DPDT limit switchesOptional elements: Pneumatic switches for the 4P series, for pure pneumatic control, instead of DPDT switches DPDT extra torque and limit switches, and intermediate position switches Precision potentiometer: 1, 5 and 10 kOhm.

4 Other values on request Electronic position transmitter (0-20 mA, 4-20 mA, 0-10 V) Mechanical position indicator For 4H series: Hydraulic dual relief valves and flow regulators, special control block on request ATEX version available, according to EC-Type Examination Certificate number LOM 03 ATEX2126 X For 4P series: Air set kits (FRL), control valves, mufflers, pneumatic or electro-pneumatic (before local control units)Electrical connectionOffering electric and pneumatic/hydraulic standard connections, indicator options are also on terminals with tension clamp connection for control wiring, the wiring and cabling process is simple, easy and robust. The terminal housing forms part of the actuator enclosure, featuring the same protection degree benefits. It has been designed to work efficiently and effectively under harsh conditions (vibrations). Up to three conduit entries are provided to suit various gland/size requirements (metric, NPT or PG threads available).

5 Standard version: 2xM25 and 1xM20 or 2x3/4 and NPT. Other arrangements are available on operationThis provides lockable emergency manual operation. The motor drive priority is always the World Flowing4P / 4H Range4P1/4H1 for rising spindleHydraulic actuators modelPneumatic actuators modelRated torque (Nm)Min setting torque (Nm)Max allowable thrust (kN)Flange ISO 5210 Max allowable stem diam (mm)Hydraulic pressure (bar)Air pressure (barg) Working pressure 30-140 barMax pressure 240 bar Working pressure 2-7 output speed depends on OIL/AIR flow, consult for non-rising spindleHydraulic actuators modelPneumatic actuators modelRated torque (Nm)Min setting torque (Nm)Shaft diamMax allowable shaft length (mm)Flange ISO 5210 Hydraulic pressure (bar)Air pressure (barg) pressure 30-140 barMax pressure 240 barWorking pressure 2-7 output speed depends on OIL/AIR flow, consult informationValve typesMovementActuatorKnife valve Gate valve Globe valves Diaphragm valves Pinch valvesMulti-turnRising spindleNon-rising spindle4P0 / 4H0 series + bevel (IB) / spur (IS) gearboxor4P1 / 4H1 series Multi-turnLinear(Lineal)4P0 / 4H0 series + linear thrust unit LCPlug valves Ball valves Butterfly valvesQuarter- turn (0-90 )4P0 / 4H0 series + worm bearbox (IW, ABM)PUB140-001-00 Issue 12 /17As part of a process of on-going product development, Rotork reserves the right to amend and change specifications without prior notice.

6 Published data may be subject to change. For the very latest version release, visit our website at name Rotork is a registered trademark. Rotork recognises all registered trademarks. Published and produced in the UK by Rotork Controls Limited. POWTG1217 Rotork is a corporate member of the Institute of Asset Management4P / 4H RangeHydraulic and Pneumatic and Gear OperatorsPrecision Control and IndicationProjects, Services and RetrofitElectric Actuators and Control SystemsFluid Power Actuators and Control SystemsA full listing of the Rotork sales and service network is available on our HeadquartersRotork plctel +44 (0)1225 733200fax +44 (0)1225 333467email multi- turn hydraulic actuator, 500 Nm rated torque, mounted on a 12 - Class 150 globe valve on an LNG multi- turn hydraulic actuator, 1000 Nm rated torque, mounted on a DN300 cryogenic globe valve on one of the LNG vessels where the actuators are now