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INSTALLATION, COMMISSIONING & MAINTENANCE MANUAL DGS, DGD & DGC-Series Direct Gas or Nitrogen Bottle Scotch-Yoke Valve Actuators : Q056 Issued By : J Haworth Approved by : M Shepherd Page : 1 of 24 Date Issued : 06/11/19...
LINE OR BY NITROGEN BOTTLES. Introduction This manual is designed to allow a qualified user to install, commission and maintain Paladon Systems Ltd DGS, DGD and DGC Series valve actuators. This manual should be used in conjunction with any additional documentation supplied at the time of shipping.
DGS, DGD & DGC Series Valve Actuators Actuator Overview DGS, DGD and DGC Series direct gas valve actuators are suitable for use with quarter-turn valves or mechanisms, and have been designed to provide years of efficient and reliable operation in heavy-duty applications. The main components of DGS, DGD and DGC Series valve actuators are: Standard Components 4.1.1...
Model Number Designations Tool Requirements No special tools are required for the installation, commissioning and maintenance of Paladon Systems Ltd actuators. Valve/Actuator Mounting Valve mounting is achieved through one of the following: ...
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DGS, DGD & DGC Series Valve Actuators Paladon Systems Ltd actuators can be mounted in any orientation; however, it is common industry practice to align the centreline of the actuator’s direct gas cylinder with that of the valve pipework. NOTE: Certain control components require mounting in a specific orientation with respect to gravity in order to function correctly.
DGS, DGD & DGC Series Valve Actuators Adjusting Open and Closed Valve Positions The precise valve open and closed positions are set using the end stop screws. NOTE: Certain valves incorporate their own end stops. For these types of valves, it is recommended that the valve's end stops be adjusted to their maximum travel so that the valve’s end positions are achieved using the actuator’s end stop screws only.
DGS, DGD & DGC Series Valve Actuators Actuator Stroking Stroke the actuator to check that smooth and continuous operation is achieved. In the event of uneven stroking, or stroking speeds below those detailed on the test certificate; first check to ensure correct gas supply pressure and flow rate. Further fault finding procedures can be found in Section 16.
Reconnect direct gas supply lines. Maintenance 11.1 All Paladon Systems Ltd actuators have been designed to provide long service with minimum maintenance; however, a preventative maintenance program is recommended. Preventative maintenance programs not only help avoid unanticipated and costly down time, but also typically reduce the overall cost of ownership.
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DGS, DGD & DGC Series Valve Actuators 12.2 Remove the bottom flange (see Section 17.2, Drg. HYX-XXX-CYXXX-00-001- PL, Item 5 – manufactured part). 12.3 Slide off the cylinder liner (see Section 17.2, Drg. HYX-XXX-CYXXX-00-001- PL, Item 1 – manufactured part). 12.4 Remove the frame cover retaining screws (see Section 17.1, Drg.
DGS, DGD & DGC Series Valve Actuators 12.19 Check for proper actuator operation and for any seal leaks. Lubrication Usually it is not necessary to lubricate the actuator as all moving parts are lubricated for life; however, in the unlikely event that additional lubrication is required, the following lubricant should be used: Manufacturer AGIP...
DGS, DGD & DGC Series Valve Actuators Trouble-Shooting In the unlikely event of incorrect actuator operation, please refer to the below trouble-shooting guide. Fault Cause Corrective Action Erratic or slow operation Supply pressure erratic or Check supply pressure and below minimum specified correct as required.
DGS, DGD & DGC Series Valve Actuators 17.1 XXX-XXX-FRXXX-00-002-PL : Q056 Issued By : J Haworth Approved by : M Shepherd Page : 14 of 24 Date Issued : 06/11/19...
DGS, DGD & DGC Series Valve Actuators 17.2 HYX-XXX-CYXXX-00-001-PL : Q056 Issued By : J Haworth Approved by : M Shepherd Page : 15 of 24 Date Issued : 06/11/19...
DGS, DGD & DGC Series Valve Actuators 17.3 XXX-XXX-SRXXX-00-001-PL : Q056 Issued By : J Haworth Approved by : M Shepherd Page : 16 of 24 Date Issued : 06/11/19...
DGS, DGD & DGC Series Valve Actuators 17.6 HYX-XXX-HDXXX-00-001-PL : Q056 Issued By : J Haworth Approved by : M Shepherd Page : 19 of 24 Date Issued : 06/11/19...
DGS, DGD & DGC Series Valve Actuators 17.7 HYX-XXX-CYXXX-00-002-PL : Q056 Issued By : J Haworth Approved by : M Shepherd Page : 20 of 24 Date Issued : 06/11/19...
DGS, DGD & DGC Series Valve Actuators 17.10 XXX-XXX-SHXXX-00-001-PL : Q056 Issued By : J Haworth Approved by : M Shepherd Page : 23 of 24 Date Issued : 06/11/19...
Actuator Serial Number (6 or 7 digit number with a RFPL prefix) Paladon Contract Number (5 digit number with an ACCP, ACE, ACP, ACSP, CCP, CE, CGH, CP, CPC or CSP prefix) General Arrangement or Control Schematic Drawing Number ...
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