Summary of Contents for Watson McDaniel HSP Series
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Series HSP Pressure Pilot Regulating Valve Installation Operations & Maintenance Manual 428 Jones Boulevard Phone: (610)495-5131 Limerick Airport Business Center Fax: (610)495-5134 Pottstown, PA 19464 www.watsonmcdaniel.com...
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** 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 warranty extends to the first retail purchaser only. All defective material must be returned to the person from whom you purchased the Product, transportation prepaid, free of any liens or encumbrances, and if found to be defective will be repaired free of charge or replaced, at the warrantor’s or seller’s option.
Watson McDaniel Company HSP Valve Manual Rev3 2415800 Principle of Operation The HSP Pilot Operated Pressure Regulating Valve 5. T he pressure under the Main Valve is designed to maintain a consistent downstream Diaphragm pushes the stem upward which pressure for steam applications.
Watson McDaniel Company HSP Valve Manual Rev3 2415800 Figure 2: Valve Operations Installation A Recommended Notes for System 1. Piping will need to be adequately sized to horizontal position to prevent any collection handle the flow, velocity, and pressure of condensate. Pipeline debris and scale requirements for the regulator’s application.
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Watson McDaniel Company HSP Valve Manual Rev3 2415800 B Valve Installation C Pilot Installation 1. Verify steam supply is safely shut off. 1. Assemble the pilot to the valve body making 2. Clean out existing pipe to remove scale and sure the gasket is properly seated between debris buildup.
Watson McDaniel Company HSP Valve Manual Rev3 2415800 Maintenance Proper maintenance is significant for reliable operation of the valve. Frequency of cleaning and maintenance performed are dependent on the conditions of the steam system. A General Service Inspection 1. Inspect all connections for leaks and tighten as required.
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Watson McDaniel Company HSP Valve Manual Rev3 2415800 PILOT ASSEMBLY ITEM DESCRIPTION MATERIAL Pilot Body Steel Cover Steel Diaphragm Bronze Gasket Flexicarb / SS Adjusting Spring Stainless Steel Adjusting Screw Steel Stem Stainless Steel Stroke Limiter Stainless Steel Bushing Stainless Steel...
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Watson McDaniel Company HSP Valve Manual Rev3 2415800 Figure 6: Main Valve Assembly MAIN VALVE ASSEMBLY ITEM DESCRIPTION MATERIAL Body Steel Cover w/ Bushing Steel Diaphragm Cover Steel Pilot Seat Stainless Steel Stem & Disc Assembly Stainless Steel Diaphragm Bronze...
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Watson McDaniel Company HSP Valve Manual Rev3 2415800 C Main Valve Service Allow valve to cool before disassembly. Condensate trapped in the system has CAUTION the potential to cause burns or serious injury. Use caution while disassembling all components as condensate may leak from within the valve assembly.
HSP Valve Manual Rev3 2415800 Valve Troubleshooting The most common field problem with the HSP Series regulating valves is that they become saturated with condensate or water. The valves are designed to operate on steam and may perform erratically or fail to operate at all if the valve and/or pilot contain significant water. It is imperative to verify all water is drained from the valve and pilot before attempting to diagnose a malfunctioning valve.
Watson McDaniel Company HSP Valve Manual Rev3 2415800 System Troubleshooting PROBLEM POSSIBLE CAUSE CORRECTION 1. Cannot set valve to a) Valve undersized a) Check capacity of valve against load give high enough b) Downstream piping undersize b) Check velocity of steam in piping...
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Watson McDaniel Company HSP Valve Manual Rev3 2415800 HSP Series Valve Capacities Full Port Regulating Valve - Capacities FULL PORT CAPACITIES - (Steam lbs/hr) Inlet Outlet Inlet Outlet Pressure Pressure 1" 1-1/2" 2" 3" 4" Pressure Pressure 1" 1-1/2" 2"...
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