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<br /> OSTP Pump Selection Design UNIVERSITY
<br /> Mlnnesata P+ollutbn Worksheet OF IVIINNESOTA
<br /> Cormol A
<br /> 1. PUMP CAPACITY v 11.05.31
<br /> p. Pumping to Gravity or Pressure Distribution: O Graviry OO Preswre � Selection required
<br /> 1. If pumping to gravlty enter the gallon per minute of the pump: ��GPM
<br /> 2. Is the pump for the treatment system or the cotlection system:
<br /> Op 7reaunent sysmm O cn��ection svsroem Selection required
<br /> 3. If pumping to a pressurized treatment system,what part or type of system:
<br /> ❑Soil Treatment Unit ❑Media Filter ❑Other
<br /> 4. If pumping tD a pressurized distnDution system: 33.0 GPM
<br /> (line 11 of Preswre DlstrlbuNon ar Une 10 of Nnn-Leve1 or enter Jf Collection System)
<br /> 2. HEAD REQUIREMENTS
<br /> . tr�m�n.c rysten
<br /> 3. Elevation Difference 10 ft s�m or disdurse
<br /> '� "
<br /> between pump and polnt�f discharge:
<br /> �y��»'�"
<br /> NOTE:IF system is an fndividuaf subwrfnce sewage treatment --
<br /> system, complete steps 4-9. 1 f rystem ts o Co(lection System, t Na ei�,n�-��
<br /> d�rr�a
<br /> skfp steps 4,5,7 and 8 and go to Step!0.
<br /> 4. Distribution Head Loss: �ft ----------------------------- -------------•
<br /> 5. Additional Head Loss: Uft(due to special equipment,etc.) � ��� � -
<br /> � .
<br /> ;
<br /> ,' �TMe.� :x , �+
<br /> y"i�� "�y'
<br /> :M�, �{ s� �t� :r .� � r.
<br /> 6ravl�y D'isiribution= U'ft � *_� t.;�_v y�' . .:.w.
<br /> ,. ._. _ n�_ . .-,. �.
<br /> Flow Rate:
<br /> Pressur�e pt5tribvtt�an based �I�Iinimum�Vea'�ge�fiead 1 i'!✓i 9't� 2 3
<br /> � 1/aPu�� Pressure DiSEr-fbut�on�°t,Nor�t: . .
<br /> � ,::: _:-. ,-;,k
<br /> _
<br /> � �:,;
<br /> .. ,,..,- , . . , .�. - . ,
<br /> a,,._. - _ .. . _ .. . 12 12:7� -44:31 1.?8 . :0:4�d
<br /> _ _ --
<br /> 9fi ' 3'ft - -
<br /> ..� ,,.�,_ �,., .
<br /> - -__. ..---------_ _ ,u� ..
<br /> . _ _._ _.. __... ' _.__ -
<br /> 2fx. _.... _ _ �� .,:a., _ . . .._ .
<br /> 5�t . 16 — 7.35 3�03 ��5 �.'Fti
<br /> 1:Oft _ _�. -
<br /> _ _ _. _ _.____ __ � , : u ,
<br /> __... '°�,
<br /> 4 1� +..' k �� .- .
<br /> 6. A.Supply Pipe Diameter. 2.0 in 20 71�f 1 �d:58 1.:13 Q:'t�6
<br /> ��"`,�F- -?fi�.ali _ ' ' i
<br /> B.Suppty Pipe Length: 30 ft _ �.
<br /> 3U 8.69 '2.39 t3:33' �
<br /> . �� --'�e - .,._,
<br /> 7. Based on Friction Loss in Plastic Pipe per 100ft from Table I: '� �. �.� _,, . .: . . . : ' .
<br /> 40 -- — 'lB52 •4.D7 Q:57
<br /> Friction Loss= 2.83 ft per 100ft of pipe .�. �"'��� '�'" 'E
<br /> g, Determine Equiva[ent Pipe Length from pump discharge to soil dispersal -5� -" - --- `�-'1S 0'�SB
<br /> _ -� -: . �
<br /> area discharge point. Estimate by adding 25%to supply pipe length for ��x�r ,, , ,, ,,; ;,,,,�,.: :
<br /> fitting loss. Supply Pipe Length(6.B) X 1.25=Equivclent Pipe Length bp __ _— -_ ;8,�i �;Zp.
<br /> ��El� 1��"`'��..�� .i +�.W�r��n� {.LY .. ..... �f.t....
<br /> 30 ft X 1.25 = 37.5 ft � �p� — - — 11�118 1..50.
<br /> 9. Calculate Supp(y Friction Loss by muLtiplying Friction Loss Per 100ft (Line 6) by the Equivalent Pipe Length (Line 7)and divide by 100.
<br /> Supply Friction Loss=
<br /> 2.83 ft per 10oft x 37.5 ft - 10D = 1.7 ft
<br /> ;
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