Series HSP Pressure Pilot Regulating Valve
Installation Operations &
Maintenance
Manual
428 Jones Boulevard
Limerick Airport Business Center
Pottstown, PA 19464
Phone: (610)495-5131
Fax: (610)495-5134
www.watsonmcdaniel.com
Page 1: ...SP Pressure Pilot Regulating Valve Installation Operations Maintenance Manual 428 Jones Boulevard Limerick Airport Business Center Pottstown PA 19464 Phone 610 495 5131 Fax 610 495 5134 www watsonmcda...
Page 2: ...ing no load to Spring Based on approximate position of plug Each Watson McDaniel Company Product is warranted against defects in material and workmanship for one year from date of shipment This warran...
Page 3: ...Pilot Diaphragm which opens the Pilot Valve 4 The steam then travels through the Pilot Valve to the External Transmission Tubing This then fills the area under the Main Valve Diaphragm 5 T he pressure...
Page 4: ...uld be installed prior to the regulator 5 A strainer with blow down valve is recommended before all regulator installations The strainer should be in the horizontal position to prevent any collection...
Page 5: ...recommended to be installed in the sensing line for fine tuning purposes Start up 1 All valves in the installation need to be closed 2 Loosen the locknut on the pilot adjusting screw and back out unti...
Page 6: ...blow down and readjust if necessary Note At a minimum these maintenance operations should be performed a few days after the valve has been initially installed and shortly after the start up during eac...
Page 7: ...Upper Spring Button Stainless Steel 21 Cap Screws Steel 22 Spacer Steel B Pressure Pilot Service 1 Turn the pilot adjusting screw counter clockwise to remove all compression from the pilot spring 2 Sh...
Page 8: ...Body Steel 2 Cover w Bushing Steel 3 Diaphragm Cover Steel 4 Pilot 5 Seat Stainless Steel 6 Stem Disc Assembly Stainless Steel 7 Diaphragm Bronze 8 Cover Bolts Steel 9 Cover Nuts Steel 10 Spring Stain...
Page 9: ...screw for the diaphragm plate and then remove plate itself Caution The main valve spring is exerting significant force on the diaphragm plate Proceed slowly 10 Remove the top cover nuts and cover plat...
Page 10: ...by backing out the adjustment screw until there is no compression on the spring 3 Disconnect the pilot tube at the regulator diaphragm which is indicated as point A in the illustration above Also disc...
Page 11: ...e open b Close valve c Pilot valve adjusting spring set too high c Readjust to desired reduced pressure d Bleed orifice blocked d Inspect and clean e Dirt in pilot seat or stem guide e Clean pilot hea...
Page 12: ...100 4000 6400 200 100 4200 8000 14100 27100 43100 20 10 550 1000 1800 3500 5600 125 3700 7100 12600 24100 38400 12 500 950 1600 3200 5100 150 3100 6000 10600 20300 32300 7 775 1500 2600 5000 7900 225...
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