Section: SP PUMPS Page: 1 of 4 Date: March 30, 1984 SERVICE MANUAL MOYNO® SP PUMPS SERIES 356 & 367 MOTORIZED MODELS 35651 & 36751 DESIGN FEATURES Housing: Cast iron Pump Rotor: AISI 416 stainless steel Pump Stator:   NBR Seal- NBR (Nitrile) Motcr Shaft: Mechanical (carbon/ceramic) Motor: 3 phase; 1 HP, 208/2301460V for Series 356; 2 HP, 2301460 V for Series 367; 60 Hertz, 1725 rpm, totally enclosed Note:   Alternate  elastomers  available.    Refer  to  Repair/ Conversion kit numbers, page 4 INSTALLATION Mounting   Position.      Pump   may   be   mounted   in   any position.    When  mounting  vertically,  it  is  necessary  to keep   bearings   above   seals   to   prevent   possible   seal leakage  into  bearings  Pre-Wetting.    Prior  to  connecting pump,   wet   pump   elements   and   mechanical   seal   by adding  fluid  to  be  pumped  into  suction  and  discharge ports   Turn   pump   over   several   times   in   a   clockwise direction to work fluid into pump elements Piping.  Piping to   pump   should   be   self-supporting   to   avoid   excessive strain  on  pump  housings.    See  Table  1  for  suction  and discharge port sizes of each pump model. Use pipe "dope"  or  tape  to  facilitate  disassembly  and to provide seal on pipe connections. Electrical.      Follow   the   wiring   diagram   on   the   motor nameplate   or   inside   the   terminal   box   for   the   proper connections.  The wiring should be direct and conform to local    electrical    codes    Check    power    connections    for proper  voltage.    Voltage  variations  must  not  exceed  + 10% of nameplate voltage.  Motors do not have overload protection. To  prevent  damage  to  pump,  pump  rotation  must  be clockwise when facing pump from motor end. OPERATION Self-Priming.  With wetted pumping elements, the pump Is capable of 25 ft. suction lift with pipe size equal to port size.  Be sure suction lines are air tight or pump will not self prime. DO NOT RUN DRY.    Unit  depends  on  liquid  pumped  for lubrication.  For proper lubrication, flow rate should be at least 10% of rated capacity. Moyno  Is  a  registered  trademark  of  Robbins  &  Myers, Inc. Pressure  and  Temperature  Limits.     See  Table  1  for maximum   discharge   pressure   of   each   model   Unit   is suitable for service at temperatures shown in Table 2. Storage.      Always   drain   pump   for   extended   storage periods  by  removing  bottom  drain  plug.    To  drain  Model 36751  remove  suction  housing  bolts  and  loosen  suction housing Caution:  Suction  pressure  should  never  be  greater than discharge pressure. Table 1.  Pump Data Pump Model 35651 36751 Suction Port (NPT) 1-1/2 2 Discharge Port (NPT) 1-1/4 1-1/4 Voltage Rating (VAC) 2301460 230/460 Discharge Pressure (psig) (maximum) 50 50 NOTE:   SSU= 5 x CP     (approximate) specific gravity Table 2.  Temperature Limits Elastomer Temperature Limits *NBR 10-160F *EPDM 100-210F *FPM 10-240F *NBR = Nitrile EPDM = Ethylene-Propylene-Diene Terpolymer FPM = Fluoroelastomer