HIGH PRESSURE MOTOR VALVES

ELECTRO HYDRAULIC VALVE POSITIONER

www.kimray.comBulletin No. E110257

Issued 9/10Current Revision:

APPLICATIONS: Used on all Kimray HPMVs topworks or any 30 psi and lower diaphragm operated motor valve. Usedforfieldautomationwhereelectricalsignalsorcommu-nications are used to actuate or position a spring return motor valve.

FEATURES: Low current consumption Class I Division 1 enclosure ½” electrical conduit connection Discrete option (ON/OFF, switch or relay) Analog option (1-5V, 4-20mA) MODBUS option – logs history, stroke count, status, with ability for remote opening/closing and reconfigurationofcommunicationparameters Full Open Time – 25 seconds Full Close Time – 15 seconds

ELECTRICAL SPECIFICATIONS: Current: Idle – 100mA (typ) Opening – 2.5A (max) Closing – 1.5 A (max) MODBUS input (TDA-, TDB+): -7V to 12V, -200uA to 250uA

THE EHVP CONSITS OF: •CHECKVALVEensuringthathydraulicoildoesnotback-flowthroughthepump. •CONTROLCIRCUITallowingforDiscrete(ON/OFF),Analog (4-20mA), and MODBUS communications/control of a diaphragm operated motor valve by means of manipulation of the pump and solenoid valve. •HYDRAULICOIL(KIMZOILHA1)thathasbeenspeciallyformulated for this application. •MANIFOLDusedtodirectflowandconnectactuator/posi-tionerfluidpressurecomponents. •OILRESERVOIRforfillinghydraulicoilintothesystemandfor visual management of oil levels. •PRESSURETRANSDUCERthatmonitorspressureonthe diaphragm, signaling maximum pressure on the diaphragm (Discrete version). •PUMPthatprovideshydraulicpressuretothehydraulicoilwhich acts on a diaphragm against the spring and internal valve forces. •ROTARYSENSORconnectedtomechanicallinkagethatmonitors valve position (Analog & MODBUS versions). •SOLENOIDVALVEthatrelieveshydraulicoilpressureonthe diaphragm to allow for the actuator spring to actuate the valve.

OPERATION: ForallversionsoftheEHVP,HYDRAULICOILisshuttledfrom the area on top of the diaphragm to the area underneath the diaphragm through a MANIFOLD. For a Pressure Opening (PO) valve the volume on the top of the diaphragm acts as a storagespaceforHYDRAULICOILatatmosphericpressure.The volume underneath the diaphragm is pressurized to actuate the valve open. A OIL RESERVOIR is attached to the top of the valveactuatortoallowforHYDRAULICOILinputandvisualmeasurementoftheHYDRAULICOILlevel.TheEHVPcanbeused with either a PO valve or a Pressure to Close (PC) valve.

When a signal is received through the CONTROL CIR-CUIT to open a PO valve, the PUMP is activated and begins tomoveandpressurizetheHYDRAULICOILoutofthetopofthe diaphragm space through the pump and into the volume underneath the diaphragm. The valve actuator begins to open the valve.

For the Discrete (ON/OFF) version (Valve Actuator), the PUMP continues with pressure being monitored by the PRES-SURE TRANSDUCER until the maximum set point is reached. At that point, the PUMP is deactivated and the valve remains open. The Discrete version does not have position feedback. Two discrete inputs (such as a GEN II electronic level controller) aremonitoredforoperation.Thefirstdiscreteinputnotifiesthecontroller to begin opening the valve by changing from an open contacttoaclosedcontact.Theseconddiscreteinputnotifiesthe controller to begin closing the valve by changing from an open to a closed contact.

For the Analog and MODBUS version (Valve Positioner) which have position feedback, the pump continues with position beingmonitoredbytheROTARYSENSORuntilthedesiredposition is reached. At that point, the PUMP is deactivated and the valve remains in position.

When a signal is received through the CONTROL CIRCUIT to close a PO valve, the SOLENOID VALVE is activated and begins to allow for the movement and de-pressurization of the HYDRAULICOILoutfromunderneaththediaphragmthroughthe SOLENOID VALVE and into the volume above the dia-phragm. The valve will stay in position until a signal is received through the CONTROL CIRCUIT. In case of power failure the valve will remain in place.

DIP SWITCHSETTINGS ON OFF

1 MODBUS LEDs enabled MODBUS LEDs disabled

2 MODBUS uses internal 120Ω load resistor

MODBUS uses external 120Ω load resistor

3 Pressure to CLOSE valve Pressure to OPEN valve

4 CALIBRATION MODE NORMAL mode

HIGH PRESSURE MOTOR VALVES

ELECTRO HYDRAULIC VALVE POSITIONERDUCTILE IRON

www.kimray.comBulletin No. E110257 Issued 9/10

Current Revision:

NOTES:ELECTRO-HYDRAULICCONTROLLERS:

CAT. OPER. CONTROL NO. DESC. PRESS. VOLTAGEYHDDIS ACUATORDISCRETE 35psi 12vYHDMOD ACUATORMODBUS 35psi 12vYHEANA POSITIONERANALOG 35psi 12vYHEDIS POSITIONERDISCRETE 35psi 12vYHDMOD POSITIONERMODBUS 35psi 12v

Transducer 6818

* Not PicturedCheck Valve Assy. 6819AS

Instrument Side Cover 6814

Solenoid Valve 6816

Power Side Cap 6815

Control Circuit Analog KA7502 Discrete KA7503 MODBUS KA7502

Manifold 6813

Reservoir Assy 6820AS

Pump 6817

Hydraulic Oil