©2005 Armstrong International, Inc. Proper Piping Practices (Pumps)

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 2 Condensate Return Let’s take a look at a savings analysis... Hotter boiler feed water temperatures Minimizes the amount of chemicals required to treat boiler feed water Eliminates environmental concerns Minimizes water usage which is critical in some areas Condensate is a tangible item which can be measured in the form of a savings analysis Effective return can lower overall costs which can impact profitability

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 3 A. Condensate LoadA= 2000 lb/hr B. Annual hours of operation B= 5000 hrs C. Total Water Cost = (C1+C2) C1. Untreated water and sewage.002 $/gal C2. Water treatment chemicals.003 $/gal C=.005 $/gal D. Make-up water preheating requirements D1. Condensate return temperature 200 °F D2. Make-up water temperature 60 °F D = (D1-D2) x 1.0 BTU/lb / °FD= 140 BTU/ lb E. Steam costE= 5.00 $/1000 lb F. Savings in water costs (A) x 2000 x (B) 5000 x (C) lb/galF= 5,995 $/yr G. Savings for preheating make-up water *(BTU/lb from direct steam injection) (A) 2000 x (B) 5000 x (D) 140 x (E) 5.00 *1000 x 1000G= 7,000 $/yr H. Cost of steam to run Armstrong Pump Trap 3 x (A) 2000 x (B) 5000 x (E) 5.00 *1000 x 1000H= 150 $/yr I. Total annual savings = (F+G+H) F. Savings in water costs 5,995 $/yr G. Savings for preheating make-up water +7,000 $/yr H. Cost of steam to run Armstrong Pump Trap $/yr I= 12,845 $/yr J. Payback of pump purchase Payback = $5,063 (cost of pump package) 12,845J=.39 yrs

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 4 Piping Considerations: Doing it right the first time Check Valves Fill Head Lead/Lag PRV Station Receiver Sizing Vent piping Condensate return lines

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong SWING CHECK VALVE: INLET

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong IN-LINE NON-SLAM CHECK VALVE: Inlet or Outlet

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong Condensate Return Lines Undersized return lines cause major problems for the entire system. Increased velocity from undersized return lines result in WATER HAMMER PROBLEMS.

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 8 Pipe Sizing Piping should be based on 2-3 times the normal condensing rate due to instantaneous discharge rate of the pump Minimize elevation changes to prevent hydraulic shock Utilize check valves at main header to minimize backflow Run separate lines for pumped and pressurized condensate, if possible, to minimize thermal shock potential Always calculate the maximum flash rate in return lines

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong CONDENSATE RETURN LINE SIZING ELIMINATE THE POSSIBILITY OF DAMAGING WATER HAMMER. OFTEN OVERLOOKED DURING SYSTEM UPDATES. PIPE SIZE IS BASED ON FLASH STEAM VOLUME SINCE ITS VOLUME IS SO MUCH GREATER THAN LIQUID WATER. FEWER PROBLEMS WITH OVERSIZED PIPE THAN UNDERSIZED PIPING.

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 10

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 11

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 12

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 13

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 14 Vented Receiver Sizing

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 15 Closed Loop Receiver Sizing

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 16

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 17

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 18 Product Range Single pump capacities from 350 lb/hr to 73,000 lb/hr Flash recovery vessels Electric condensate pumps

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 19 Rescue Cap™ Fits Spirax Sarco PPC/PPF pumps. Watson McDaniel Spence Hoffman PCS Gestra FPS23 Johnson Clark Reliance

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 20 Armstrong Stainless Steel Sump Ejector Replaces standard electric sump pumps (must have high pressure steam available For steam pits, tunnels and enclosed spaces where ground or rain water can accumulate and requires pumping Can be used in any application where the water temperature will not exceed 140°F Great for locations that run underground steam lines where the drip traps are in tunnels or manholes

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 21 Armstrong AFT Vertical Flash Vessels Excellent for providing low velocity flash steam with no water carryover ASME Sec. VIII U stamped to 150 psi (other pressures upon request)

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 22 Packaged Solutions Standard Packages Custom Fabrications ASME Packages Low Boy Solutions Vented Systems Closed-loop Systems Process Water Packages and more… Closed-loop Low-Boy Receiver Package

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 23 Common Industry Applications Modulating Control Jacketed Kettles Jacketed Kettles Process Air Heating Process Air Heating Tank Heaters Tank Heaters Shell & Tube Exchangers Shell & Tube Exchangers Process Media (water, oil, food etc.) Process Media (water, oil, food etc.) Any steam consuming process heat exchanger utilizing…

“Expect many enjoyable experiences!” David M. Armstrong “Expect many enjoyable experiences!” David M. Armstrong 24