Related Manuals for ADCA P20P Series
Summary of Contents for ADCA P20P Series
- Page 1 ADCA P20P PRESSURE REDUCING VALVE INSTALLATION AND MAINTENANCE INSTRUCTIONS VALSTEAM ADCA We reserve the right to change the design and material of this product without notice. IMI P20P.008 E 00.22...
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Page 2: General Information
GENERAL INFORMATION • These instructions must be carefully read before performing any work involving VALSTEAM ADCA products. Failure to observe these instructions may result in hazardous situations. • These instructions describe the entire life cycle of the product. Keep them in a location that is accessible to every user and make these instructions available to every new owner of the product. -
Page 3: Table Of Contents
7.1. Shutdown procedure 8. PARTS LIST 9. MAINTENANCE 9.1. Maintenance procedure 9.2. Replacing seat and plug assembly 9.3. Replacing piston O-ring and adjustment spring 9.4. Tightening torques 10. TROUBLESHOOTING 11. DISPOSAL 12. RETURNING PRODUCTS VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 4: Safety Information
This includes checking application, material suitability, process medium, pressure and temperature as well as their respective limiting values. VALSTEAM ADCA does not assume any responsibility for damage resulting from inappropriate use of the product, damage caused by external stresses or any other external factors. -
Page 5: Qualification Of Personnel
Unauthorized modifications to the product. If the product is to be used for an application or with a fluid other than the one it was designed for, contact VALSTEAM ADCA. 1.3. Qualification of personnel Handling, installation, operation and maintenance work must be carried out by fully trained and qualified personnel, capable of judging the work which they are assigned to perform and recognizing potentially hazardous situations. -
Page 6: Atex
Do not touch the product while it is hot or cold, allowing it firstly to cool down or heat up. • Wear protective clothing and safety gloves during working operation. • Thermally insulate tubes and product’s as a preventive measure. VALSTEAM ADCA IMI P20P.008 E 00.22... - Page 7 Direct contact with dangerous process medium may lead to personal injury, e.g. smoke inhalation and chemical burns. • Drain the process medium from the product and all the relevant plant sections. • Wear protective clothing, safety gloves, mask, and eye protection. VALSTEAM ADCA IMI P20P.008 E 00.22...
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Page 8: Product Information
ADCA. 2. PRODUCT INFORMATION The ADCA P20P series pressure reducing valves are direct acting, spring loaded, piston sensing balanced plug regulators designed for high pressure applications with mediums such as nitrogen, compressed air, water and other gases and liquids compatible with the materials of construction. -
Page 9: Certification
• Pressure rating (e.g. PN320) • Nominal size (e.g. 1/4") • Max. operating temperature (e.g. Tmax = 80ºC) • Flow direction (indicated by an arrow) • Serial number and year of manufacturing (e.g. Reg.:17483/19) VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 10: Technical Data
Manual handling (e.g. lifting, carrying, pushing, pulling) of large and/or heavy products may result in personal injury such as back injury. • Assess the risk associated with the handling task. • Use adequate handling methods and appropriate auxiliary handling equipment. VALSTEAM ADCA IMI P20P.008 E 00.22... - Page 11 VALSTEAM ADCA. Products are individually wrapped in plastic film, thermo shrinkable plastic and/or stored in a cardboard box as they leave VALSTEAM ADCA. Avoid removing packaging and any protective cover until immediately before installing the product at the site. NOTE If the transport packaging has any shipping damage contact VALSTEAM ADCA or its representative.
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Page 12: Installation
Referring to this Installation and Maintenance Instructions (IMI), Information Sheet (IS) and nameplate, check that the product is suitable for the intended installation: temperature, medium, pressure, temperature, etc. – see section 1.2 – Intended VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 13: Installation Procedure
4. Take care with jointing materials and sealing compounds to ensure that none may be permitted to block or enter the steam trap causing malfunction. In case of flanged connections use appropriate flange gaskets. VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 14: Panel Mounting
(19) holes with the ones on the panel surface and secure the regulator using two M5 washers and screws (not supplied). 4. Install the adjutment knob (18), fit the shaft ring (21) and cover nut (22). 4.4. Bottom mounting Fig. 3 - Bottom mounting procedure VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 15: Start-Up
(dirt, scale, weld splatters, etc.) may damage the product or cause malfunction. • Flush pipelines before start-up. • Clean protection varnishes from pipes and flanges, leftover paint, graphite, grease, etc. • Use a pipeline strainer or a filter. VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 16: Start-Up Procedure
NOTE 24 hours after system start-up, it is recommended to check pipe connection for leaks and retighten when necessary. Clean strainers/filters to avoid blocking. VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 17: Operation
6. If the pressure regulator won’t be put back in operation for a long period of time relax the regulating spring or disconnect the loading control pressure supply. 7. If the pressure regulator is to be removed from the pipeline – see section 3 – Transport, storage and packaging. VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 18: Parts List
Cover Plate Plug Adjustment spring Valve head Spring guide Valve spring Adjustment screw Pushrod Retaining washer Seat O-ring O-ring Adjustment knob Piston sleeve Panel mounting ring O-ring Bearing O-ring Shaft ring Piston Cover nut VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 19: Maintenance
4. Apply a suitable lubricant on the piston (10) and insert it inside the sleeve (7). 5. Replace the O-rings (8, 9) and adjustment spring (13). 6. Fit the plate (12) below the adjustment spring (13) securing by joining piston sleeve (7) and cover (2). VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 20: Tightening Torques
ADCA 7. Screw the body (1) onto the cover (2) tightening with the recommended torque – see section 9.4 – Tightening torques. 9.4. Tightening torques POS. Nº DESIGNATION TORQUE (Nm) Cover Seat VALSTEAM ADCA IMI P20P.008 E 00.22... -
Page 21: Troubleshooting
ADCA 10. TROUBLESHOOTING Before applying any corrective measure, refer to section 1 – Safety information. If the malfunction cannot be solved with the help of the following table, contact VALSTEAM ADCA or its representative. Malfunction Possible cause Corrective measure •... -
Page 22: Disposal
VALSTEAM ADCA personnel. • Information regarding any hazards or precautionary measures to be considered must be provided in writing when returning products to VALSTEAM ADCA. • Health and Safety information sheets relating to any substances identified as hazardous or potentially hazardous must be provided outside the packaging.
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