Related Manuals for Parker EP Series Pro-Bloc
Summary of Contents for Parker EP Series Pro-Bloc
- Page 1 Effective: July 2018 IPDE-IOM-EP-SERIES-PROBLOC Effective: April 2021 Installation and Operation Manual ® EP Series Pro-Bloc...
- Page 2 Installation and Operation Manual Page 1 of 10 ® ECO-0364767 EP Series Pro-Bloc Rev: - IPDE-IOM-EP-SERIES-PRO-BLOC Parker Hannifin Parker Hannifin (IPDE) Riverside Road, Barnstaple, Devon, EX31 1NP United Kingdom Telephone: (01271) 313131 E-mail: ipde.technical@support.parker.com IDENTIFICATION OF HAZARDS NEVER adjust valves under pressure.
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Page 3: Operation
To open: Fully rotate the handle anti-clockwise until a stop is felt. There are approximately three rotations between fully open and fully closed. Do not force rotation past the stop, as damage may occur. Maximum torque is 6Nm For anti-tamper designs only use the correct key for Parker manifolds. - Page 4 Installation and Operation Manual Page 3 of 10 ® ECO-0364767 EP Series Pro-Bloc Rev: - IPDE-IOM-EP-SERIES-PROBLOC ISOLATE VALVE OPERATING POSITIONS ISOLATE BALL VALVE IN CLOSED POSITION ISOLATE BALL VALVE IN OPEN POSITION.
- Page 5 Installation and Operation Manual Page 4 of 10 ® ECO-0364767 Series Pro-Bloc Rev: - IPDE-IOM-EP-SERIES-PROBLOC BALL VENT VALVE OPERATING POSITIONS VENT BALL VALVE IN CLOSED POSITION VENT BALL VALVE IN OPEN POSITION.
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Page 6: Operating Sequence
Installation and Operation Manual Page 5 of 10 ® ECO-0364767 EP Series Pro-Bloc Rev: - IPDE-IOM-EP-SERIES-PROBLOC OPERATING SEQUENCE These valves are primarily used for double isolation of an instrument, be that a gauge or a transmitter. The primary and secondary valves are in the open position during normal operating conditions allowing the process pressure to enter the gauge or transmitter to perform its function to give a pressure reading. - Page 7 Installation and Operation Manual Page 6 of 10 ® ECO-0364767 EP Series Pro-Bloc Rev: - IPDE-IOM-EP-SERIES-PROBLOC The secondary and vent are then closed (the primary valves is already closed) and the instrument safely removed. The double block gives two isolations to prevent process escape while the instrument is removed. Once the instrument is calibrated or replaced with a new one it can be fitted back on top of the valve outlet and the primary and secondary valves opened again to allow pressure measurement to continue.
- Page 8 That is the operator’s decision and should be in their operating procedures. Parker are not responsible for this decision. It is suggested that PTFE tape or sealant is used to prevent galling of the threads.
- Page 9 Installation and Operation Manual Page 8 of 10 ® ECO-0364767 Series Pro-Bloc Rev: - IPDE-IOM-EP-SERIES-PROBLOC BALL VALVE HANDLE REMOVAL Ball Valve handle removal/reinstallation The ball handle may be removed without under loading the packing. To remove the handle • Unscrew the top nut (Dome/handle locking nut) •...
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Page 10: Maintenance
IPDE-IOM-EP-SERIES-PROBLOC MAINTENANCE Parker Pro-Blocs are not user-serviceable, except for gland adjustment of the vent needle valve. Gland adjustment becomes necessary when the valve is visibly leaking through the spindle just below the operating handle, or prior to operation when no torque or resistance is evident when operating the valve handle. -
Page 11: Further Information
Installation and Operation Manual Page 10 of 10 ® ECO-0364767 EP Series Pro-Bloc Rev: - IPDE-IOM-EP-SERIES-PROBLOC Outside Screw and Yoke Valve Gland Adjustment. CAUTION: Adjustment of the gland must be carried out at zero pressure 1. Fully close the valve by turning the handle in a clockwise direction to stop lightly on seat (max.
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