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Suntec PUMP AP3 – Two step model - Fuel oil pump
SuntecFuel oil pump

Suntec PUMP AP3 – Two step model

The SUNTEC AP3 oil pump offers 2 mode pressure operation without cut-off function, plus a special hydraulic outlet on the cover featuring nozzle pressure during high mode and dumping during low mode. Switching…

SKU 3G-OTH-02684

Brand
Suntec
Item
PUMP AP3 – Two step model
Category
Fuel oil pump
Available to Order
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Worldwide Shipping
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Datasheet on Request
Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Suntec
Model/Type
Two step model
Compatible fuels
Domestic oil, Kerosene, HVO, B30

Datasheet Content

[{"filename":"AP3_EN_Ed8_avril2025.pdf","text":"PUMP TYPE AP3 AP3\n AP3 - 11 - Ed 8 - April 2025\nThis is a general specification leaflet; for specific applications not covered PUMP\nherein, contact Suntec. IDENTIFICATION\n (Not all model combinations are available.\nThe SUNTEC AP3 oil pump offers 2 mode pressure operation without cut-off\n Consult your Suntec representative)\nfunction, plus a special hydraulic outlet on the cover featuring nozzle pressure\nduring high mode and dumping during low mode. Switching between low and\n Pump for two stage operation\nhigh modes is assured by an integral solenoid valve. (one nozzle line and two pressure modes)\n without cut-off\nCOMPATIBILITY\n- Domestic oil, HVO, B100 (biofuel blend with the addition up to 100% 3 : Special pressure outlet on cover\nFAME, as defined in DIN SPEC 51603-6 and EN 14214), kerosene.\n V : B100 applications\n- Two firing rates (with a sole nozzle line).\n- Hydraulic requirement in high mode only. Gear set capacity\n- One or two-pipe system. (see pump capacity curve)\n- System with in-line solenoid valve for cut-off.\n Shaft rotation\nPUMP OPERATING PRINCIPLE and nozzle location\n (seen from shaft end)\nThe gear set draws oil from the tank through the built-in filter and transfers it C : anti clockwise rotation/\nto the nozzle line. Pressure regulation is assured by two spool valves, one for \t\t left hand nozzle.\neach pressure mode. Pump series\nSwitching between low and high pressure is assured by a \"normally open\" 5 : hub Ø 32 mm\nby-pass solenoid valve. When this solenoid is non-activated, a by-pass channel Model number\nis open, allowing the normal functioning of the low pressure valve which sets the\nnozzle pressure. When this solenoid is activated, the by-pass channel is closed,\n AP 3 V 45 C 9 5 xx 4 P 07 00\nthus pressure will build up on both sides of the low pressure valve eliminating\nits effect, and the high pressure valve now determines the nozzle pressure. Revision number\nIn two pipe operation, the by-pass plug must be fitted in the return port, which\nensures that the oil dumped by the regulating valves is returned to the tank Installation\n P : by-pass plug installed\nand the suction line flow is equal to the gear set capacity. Bleeding in two pipe\n for two-pipe operation\noperation is automatic (it is assured by a bleed flat on the pistons), but it may\nbe accelerated by opening a pressure port. Solenoid coil voltage\nIn one pipe operation, the by-pass plug must be removed, and the return 05/07 : 220-240 V AC ; 50/60 Hz\nplugged. Oil which is not required at the nozzle is returned directly to the gear\ninlet via the pressure regulating valves, and the suction line flow is equal to Connector cable length\nthe nozzle flow. 00 : no cable\nA pressure port must be opened to bleed the system. 35 : 35 cm - 45 : 45 cm\n 60 : 60 cm - 10 : 1 m\nSPECIAL FEATURE\nCover pressure port only gives pressure in high mode. In low mode it features\ndumping pressure.\n By-pass solenoid valve By-pass solenoid valve\n (NO) closed (NO) open\n (High mode) (Low mode)\n\n Dumping\n Nozzle pressure\n pressure outlet\n outlet\n Low pressure\n adjustment to nozzle\n\n\n\n\n High pressure Pressure\n adjustment outlet or Back\n Gear set pressure to suction\n gauge port Shaft seal\n\n Oil under suction\n\n Oil under pressure Vacuum\n gauge port By-pass By-pass\n By-passed oil plug plug\n returned to tank TWO PIPE inserted removed\n ONE PIPE Return\n or to suction INSTALLATION\n Inlet Return INSTALLATION plugged\n\n SUNTEC INDUSTRIES FRANCE - 1, rue Lavoisier - CS 60 102 - F-21603 LONGVIC Cedex - www.suntec.fr\n\f TECHNICAL DATA\n Pump capacity\n Capacity (l/h)\n General\n Mounting Hub mounting according to EN 225\n Connection threads cylindrical according to ISO 228/1\n Inlet and return G 1/4\n Nozzle outlet G 1/8\n Pressure outlet G 1/8\n Pressure gauge port G 1/8\n Vacuum gauge port G 1/8\n Valve function Pressure regulation, no cut-off\n Strainer open area : 6 cm2\n opening size : 150 µm\n Shaft Ø 8 mm according to EN 225\n By-pass plug inserted in return port for two-pipe system ;\n to be removed from return port with a 4 mm Allen key\n for one pipe system. Pressure (bars)\n Weight 1,3 kg\n\n Viscosity = 5 cSt - Rated speed = 2850 rpm\n Hydraulic Data Data shown take into account a wear margin.\n Nozzle pressure range Delivery pressure settings Do not oversize the pump when selecting the gear\n Low mode : 4 - 15 bars\t\t 9 bars capacity to ensure the optimum operation of the (NO)\n High mode : 12 - 25 bars\t\t 22 bars solenoid valve (switching low/high mode).\n Operating viscosity 2 - 12 mm²/s (cSt)\n Oil temperature 0 - 60°C in the pump Power consumption\n Power (W)\n Inlet pressure 2 bars max.\n Return pressure 2 bars max.\n Suction height 0,45 bars max. vacuum to prevent air separation from oil.\n Rated speed 3600 rpm max.\n Torque (@ 45 rpm) 0,10 N.m\n\n\n Solenoid valve characteristics\n Voltage 220-240 V; 50/60 Hz\n Consumption 9W\n Coil Code* Ambient temperature\n 05\t\t 0 - 60 °C\n 07\t\t 0 - 80 °C\n *Refer to \"Pump identification - solenoid coil voltage\".\n Maximum pressure 25 bars Pressure (bars)\n Protection class IP 54 according to EN 60 529, when used with\n SUNTEC connector cable Viscosity = 5 cSt - Rated speed = 2850 rpm\n\n\n\n\n PUMP DIMENSIONS (in mm)\n 46 32 42 47\n 12\n\n Low pressure\n  Suction  adjustment\n   Return and High pressure\n  internal by-pass plug  adjustment\n 77\n\n   Nozzle outlet  Special pressure port\n  - high mode :\n 21 A  Pressure outlet or\n…

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Suntec Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SUNTEC AP3 oil pump offers 2 mode pressure operation without cut-off function, plus a special hydraulic outlet on the cover featuring nozzle pressure during high mode and dumping during low mode. Switching between low and high modes is assured by an integral solenoid valve.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Suntec AP3 oil pump used for?

The Suntec AP3 is a two-step fuel oil pump designed for industrial burners requiring two firing rates from a single nozzle line. It is compatible with domestic oil, kerosene, HVO, and B30 biodiesel blends, making it suitable for commercial heating and process applications in Singapore.

What are the specifications of the Suntec AP3 pump?

The Suntec AP3 is a two-step model without cut-off, featuring a special hydraulic outlet on the cover for nozzle pressure in high mode and dumping in low mode. It operates with a built-in solenoid valve for mode switching, supports one or two-pipe systems, and is compatible with domestic oil, kerosene, HVO, and B30.

Where to buy the Suntec AP3 pump in Singapore?

3G Electric supplies the Suntec AP3 pump to customers in Singapore. We handle sourcing, logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this model.

How to install the Suntec AP3 pump?

Installation of the Suntec AP3 requires fitting the by-pass plug in the return port for two-pipe operation, or removing it for one-pipe operation. Ensure the solenoid valve is correctly wired for 220-240 V AC, 50/60 Hz. Always reference the manufacturer datasheet for specific torque and alignment details.

Used in

Common applications for Suntec
Oil-fired heating systems — Suntec AUV 47L and AUV 47R pumps supplying fuel to burner nozzles at controlled pressure
Industrial burner fuel delivery — Replacement AFG and AS47 fuel pumps for scheduled maintenance and emergency system restoration
Legacy burner commissioning — Suntec E6NA and compatible pump variants integrated into retrofit or existing heating installations
Heating plant maintenance — Suntec coupling assemblies and coil spares enabling field repair of motor-pump drive units without full unit replacement
Equipment retrofit and modernization — Suntec spare parts and pump variants supporting equipment upgrades while maintaining original burner compatibility

Suntec Products

3G Electric supplies Suntec fuel oil pump. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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