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Figure 1-1.  Major Components of ROWPU Barge Systems and Equipment - Deckhouse Roof (Sheet 1 of 3) - TM-55-1930-209-14P-7_15

TM-55-1930-209-14P-7 Water Purification Barges (NSN 1930-01-234-2165) Drinking Water System Manual
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TM 55-1930-209-14&P-7 CHAPTER 1 INTRODUCTION Section I.  General 1-1 Purpose.    This  technical  manual  (TM)  describes  the  operation  and  maintenance  of  the  compressed  air  system  on Water  Purification  Barges.    Differences  between  the  compressed  air  system  on  Barge  1  and  other  barges  are  noted  in appropriate paragraphs and figures.  Otherwise, information pertains to all barges.  Information on other systems  installed onboard      is      in      TM   55-1930-209-14&P-1      thru      P-6      and      P-8      thru      P-17.      TM   55-1930-209-14&P-18   and TM   55-1930-209-14&P-20   contains   appendices   common   to   all   TM's.      Location   of   major   components   is   shown   in Figure 1-4. 1-2  Scope.    The  compressed  air  system  provides  air  to  nine  Reverse  Osmosis  Water  Purification  Unit  (ROWPU)  air stations.    Six  of  these  (stations  1,  2,  4,  5  and  7  in  ROWPU  space,  station  3  in  workshop)  are  for  operating  air-powered impact  tools  and  general  cleaning  blowdown.    The  seventh  outlet  (station  6)  provides  air  for  propelling  a  PIG  (an  8-inch long  polyfoam  cylinder)  through  the  shore  discharge  hose  to  force  out  water  in  the  hose  before  reeling  in  the  hose. Stations 8 and 9 provide regulated compressed air for blowdown of two seachests to remove foreign material that may be clogging seachest intakes. 1-3  Warranties and guarantees. Warranty/guarantee information is contained in Chapter 7. 1-4  Maintenance forms and records.     Maintenance  forms  and  records  are  explained  in  DA  PAM  738-750,  The  Army Maintenance Management System (TAMMS). 1-5  Destruction of Army materiel to prevent enemy use. This shall be as directed in TM 750-244-3. 1-6  Storage.  For storage of this system, refer to Chapter 5. Section II.  Description and data 1-7  Description.    This  system  provides  compressed  air  to  five  air  stations  in  the  ROWPU  space,  one  in  the  workshop, and  one  on  stern  weatherdeck.    It  also  provides  compressed  air  to  two  air  stations  for  blowdown  of  seachests  in  void  2 starboard  and  void  4  port.    These  outlets,  with  other  major  components,  valves,  and  piping  are  shown  schematically  in Figure  1-2  for  Barge  1  and  in  Figure  1-3  for  Barges  2  and  3.    System  outlets  are  listed  in  Table  1-1.    In  addition,  this system is shown in drawings listed in Appendix A. 1-7.1  System capabilities, defined.  Compressed air system capabilities are stated in cubic feet per minute (cfm), Hertz (Hz),  National  Pipe  Thread  (NPT),  phase  (ph),  pounds  per  square  inch  (psi)  and  Volt  alternating  current  (Vac),  and  Volt direct current (Vdc). 1-8    Capabilities.     This  system  provides  compressed  air  up  to  155  psi  for  seven  air  stations  and  40  psi  for  two  for seachests blowdown stations. 1-9  Special limitations.   Use of air station 6 and its associated 25-foot air hose is restricted to providing compressed air for forcing water out of the shore discharge hose prior to reeling in this hose. 1-10  Performance characteristics Air compressor a. Barge 1 Rating 31.3 cfm at 125 psi Capacity 80-gallon receiver, 175 psi Electrical power 440 Vac, 3 ph, 60 Hz b. Barges 2 and 3 Rating 24.2 cfm at 125 psi Capacity 80-gallon receiver, 175 psi Electrical power 440 Vac, 3 ph 60 Hz 1-1







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