Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for Watson McDaniel PMPNT Series
- Page 1 Watson McDaniel Company PMPNT Manual 2605100 Rev A Series PMPNT & PMPNTS Pressure Motive Pump Installation Operation & Maintenance Manual PMPNT PMPNTS 428 Jones Boulevard Phone: (610)495-5131 Limerick Airport Business Center Fax: (610)495-5134 Pottstown, PA 19464 www.watsonmcdaniel.com...
-
Page 2: Safety Considerations
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. - Page 3 Watson McDaniel Company PMPNT Manual 2605100 Rev A PMPNT Specifications PMPNTS Specifications Figure 1: PMPNT Pump Figure 2: PMPNTS Pump Note: Pump overall length dimensions shown with 1½” check valves. For 1” check valve overall length, subtract 2.86”. Operating Specifications Average instantaneous discharge rate 16.1 gpm...
-
Page 4: Principle Of Operation
Watson McDaniel Company PMPNT Manual 2605100 Rev A Principle of Operation The Pressure Motive Pump allows discharge of lowest point with the vent valve open and the high-temperature condensate for return to the motive pressure valve closed. boiler. They can also be used to discharge water and other liquids for transfer to other locations. - Page 5 Watson McDaniel Company PMPNT Manual 2605100 Rev A Installation – Open Loop (Vented) System 1. The pump must be installed standing in the immediately before and after the check vertical position and located below an valves should be kept as short as possible.
- Page 6 Watson McDaniel Company PMPNT Manual 2605100 Rev A Start up 1. Gradually open steam supply to provide 4. Carefully observe the PMP unit. The pump(s) pressure at the pump motive inlet. Make should cycle periodically with an audible sure the motive trap is operational.
-
Page 7: Maintenance
Watson McDaniel Company PMPNT Manual 2605100 Rev A Maintenance Close all pump isolation valves. Make certain no 4. Inspect motive pressure inlet and vent pressure is trapped in the system. Allow unit and valves. Clean the valve and seats, and piping to cool to room temperature. -
Page 8: Ordering Spare Parts
Watson McDaniel Company PMPNT Manual 2605100 Rev A Maintenance cont. VENT VALVE MOTIVE VALVE OUTLET INLET GAUGE GLASS (OPTIONAL) OUTLET CHECK VALVE CONDENSATE INLET CHECK VALVE Figure 6: PMPNT(S) Cutaway View 902-08 SPRING ASSEMBLY 902-04 COVER GASKET 902-05 INLET & VENT... -
Page 9: System Troubleshooting
Watson McDaniel Company PMPNT Manual 2605100 Rev A System Troubleshooting PROBLEM POSSIBLE CAUSE CORRECTION 1. Pump fails to operate a) Motive pressure line closed a) Open valves to supply motive pressure to pump on startup. b) Motive pressure insufficient to b) Check motive pressure and backpressure. - Page 10 Watson McDaniel Company PMPNT Manual 2605100 Rev A PROBLEM POSSIBLE CAUSE CORRECTION 3. (continued) c) Outlet check valve stuck closed c) After checking per step 3(b), isolate Liquid backup and discharge check valve and relieve line equipment flooded, pressure. Remove cap and visually inspect.
- Page 11 Watson McDaniel Company PMPNT Manual 2605100 Rev A PMPNT(S) Check Valve Capacities Operating Check Valve - Capacities CAPACITIES - Condensate (lbs/hr) Using steam as motive pressure, (SCFM) Using air as motive pressure Total 1-1/2" x 1-1/2" Check Valve Size Motive Back 0"...
- Page 12 Watson McDaniel Company PMPNT Manual 2605100 Rev A Vented Receiver Sizing When sizing a Pressure Motive Pump for an Vented Receiver Sizing atmospheric return system, the amount of flash Receiver Flash Steam Vent Line steam to be vented through the receiver must be up to -- Dia.
Need help?
Do you have a question about the PMPNT Series and is the answer not in the manual?
Questions and answers