Suntec PUMP OT2 – SOLENOID TWO STEP PUMP

[{"filename":"OT2_US_Ed3_nov-2024.pdf","text":"SOLENOID TWO\n STEP PUMP OT2\nThis SUNTEC OT2 oil pump features 2 mode pressure operation and incorporates a OT2 - US - Ed. 3 - November 2024\nblocking solenoid valve with in-line cut-off function. Switching between low and high\nmodes is assured by a 2nd integral solenoid valve.\n PUMP\nCOMPATIBILITY IDENTIFICATION\n- Fuel oil #2 and lighter, special \"V\" models for B6-B100, (blends from 6% up to 100% (Not all model combinations are available Consult\nbiodiesel, per ASTM D396) and for Kerosene use, please contact SUNTEC. your Suntec representative)\n\n- Two firing rates (with a single nozzle line). OT2 : Pump for two mode operation\n- One or two-pipe system. (one nozzle line and two pressure modes)\n with integral in-line solenoid cut-off\nPUMP OPERATING PRINCIPLE V : B6-B100 applications\nThe gear set draws oil from the tank through the built-in filter and transfers it to the nozzle Gear set capacity\nline via the cut-off solenoid valve. Pressure regulation is assured by two spool valves, (see pump capacity curve)\none for each pressure mode. Shaft rotation and\nSwitching between low and high pressure is assured by a \"normally open\" by-pass solenoid nozzle location\nvalve. When this solenoid is non-activated, a by-pass channel is open, allowing the normal (seen from shaft end)\n A: clockwise rotation/\nfunctionning of the low pressure regulating valve which sets the nozzle pressure. When\n right hand nozzle.\nthis solenoid is activated, the by-pass channel is closed, thus pressure will build up on B: clockwise rotation/\nboth sides of the low pressure regulating valve eliminating its effect, and the high pressure left hand nozzle.\nregulating valve now determines the nozzle pressure. C:anti-clockwise rotation\n left hand nozzle.\nCut-off\n D:anti-clockwise rotation\nThe blocking solenoid valve of the nozzle line is of the \"normally closed\" type. right hand nozzle.\nThis design ensures extremely fast response and the switching can be selected according Pump series\nto the burner operating sequence and is independant of motor speed.\n 1: conical thread\nWhen this solenoid valve is : 6 : cylindrical thread\n- non-activated, the valve is closed and all oil pressurised by the gear set passes through\n Model number\nthe regulators to suction or to the return line, depending upon pipe arrangement.\n- activated, oil passes to the nozzle line at the pressure set by the pressure regulating\n OT2 V 45 A 9 1 xx 1 P 06\nvalves.\nIn two pipe, the by-pass plug must be fitted in the return port, which ensures that the oil\n Revision number\ndumped by the regulating valves is returned to the tank and the suction line flow is equal to\nthe gear set capacity. Bleeding in two pipe operation is automatic (it is assured by a bleed Installation\nflat on the piston of the low pressure regulator), but it may be accelerated by loosening P : by-pass plug inserted in return port\nthe bleeder valve (or opening a pressure port) until the air is evacuated from the system. for two-pipe operation\n M : without by-pass plug,return plugged,\nIn one pipe, the by-pass plug must be removed, and the return plugged. Oil which is for one-pipe operation\nnot required at the nozzle is returned directly to the gear inlet via the pressure regulating Solenoid valve voltage\nvalves, and the suction line flow is equal to the nozzle flow. The bleeder valve must be 02 : 24 V AC\nloosened (or a pressure port must be opened) to bleed the system. 06 : 110-120 V AC\n 05 : 220-240 V AC\n\n Blocking Blocking By-pass By-pass\n solenoid valve solenoid valve solenoid valve solenoid valve\n (NC) (NC) (NO) (NO)\n closed open open closed\n\n\n\n\n Low pressure\n adjustment\n to nozzle\n\n Shaft seal\n\n Pressure High pressure\n gauge port adjustment\n Back (bleeder Gear set\n to suction valve)\n\n Oil under suction\n\n Vacuum\n gauge port Oil under pressure\n By-pass By-pass By-passed oil\n plug plug returned to tank\n removed inserted or to suction\n Return\n plugged ONE PIPE TWO PIPE Return Inlet\n INSTALLATION INSTALLATION\n Suntec Industries Incorporated - 60 Aberdeen Drive - Glasgow, KY 42141 - USA\n Tel : 270 651 7116 - www.suntecpumps.com\n\fTECHNICAL DATA Hydraulic data\n Nozzle pressure range Low mode : 120 - 210 psi\nGeneral @ 5 cSt High mode : 175 - 360 psi\n Factory setting* Low mode : 130 psi\nMounting Flange mounting\n @ 5 cSt High mode : 320 psi\nConnection threads\n * other ranges (and factory settings) available on request, refer to the specified range\nInlet and return 1/4 NPTF\n of the particular fuel unit.\nNozzle outlet 1/8 NPTF\nPressure gauge port 1/8 NPTF Operating viscosity 2 -12 cSt\nVacuum gauge 1/4 NPTF (for Kerosene use, please contact SUNTEC)\nValve function Pressure regulation Oil temperature 32 - 140°F in the pump\nStrainer Open area : 0,93 in² Ambient temperature 32 - 140°F\n Opening size : 5.90 mil\n Suction height Single pipe : 6\" Hg max. vacuum,\nShaft 5/16 \" dia. Two-pipe : 12\" Hg max. vacuum, to prevent air sepa-\n ration from oil\nBy -pass plug Inserted in return port for 2 pipe system; to\n Inlet and return pressures 10 psi max.\n be removed with a 5/32\" Allen key for 1 pipe\n NFPA limits inlet pressure to 3 psi max\n system.\n…