Product Introduction
V-2065 Air Compressor Pump Head 3HP - Twin-Cylinder Cast Iron Replacement Pump for Belt-Drive Workshop Air Compressors
Model V-2065 · Dual 65mm Cylinders · 250L/Min Displacement · 8 Bar / 116 PSI Working Pressure · Fits 3HP Belt-Drive Compressor Assemblies - Direct Replacement Pump Head
Air compressor V-2065 air pump 3HP
The pump head is the mechanical core of a reciprocating belt-drive air compressor - the component that converts motor shaft rotation into the reciprocating piston motion that compresses atmospheric air to working pressure in the receiver tank. When a workshop compressor pump head fails through valve plate wear that prevents inlet or outlet valve sealing, piston ring wear that allows blow-by to contaminate the compressor oil, or bearing failure that produces mechanical noise and shaft misalignment, the result is a compressor that either cannot build pressure to the cut-out set point or builds it so slowly that the motor duty cycle approaches 100% - a condition that causes motor overheating and eventually motor winding failure as a secondary consequence of the degraded pump performance. Replacing the pump head as a complete unit - rather than attempting individual valve plate or piston ring repairs inside a worn crankcase - restores full displacement and working pressure in a single installation step at a cost substantially lower than complete compressor replacement.
The V-2065 air compressor pump head is a single-stage twin-cylinder reciprocating design for belt-drive assembly with a 3HP electric motor, delivering 250 litres per minute of air displacement at a working pressure of 8 bar (116 PSI) and a maximum pressure of 10 bar (145 PSI).
Technical Profiles & Materials
Cast Iron Twin-Cylinder V-Configuration Body with Finned Cylinder Heads The pump body, crankcase, and both cylinder barrels are cast from grey cast iron, providing the dimensional stability under sustained thermal and mechanical load cycling that aluminium-bodied pumps in the same duty class cannot match over extended service intervals. The V-configuration positions the two 65mm cylinders at an angle from the shared crankcase, producing a more compact footprint than a horizontally opposed twin arrangement of equivalent displacement while maintaining crankshaft balance across both cylinders' reciprocating loads. Each cylinder head casting incorporates deep external cooling fins that dissipate compression heat from the cylinder walls and compressed air passages during sustained high-duty-cycle operation, reducing the head temperature that accelerates valve plate carbon build-up and reed valve fatigue. The black industrial enamel surface coating resists the oil mist, workshop humidity, and cleaning agent exposure that cause surface corrosion on uncoated cast iron pump bodies in workshop environments.
Spoked Cast Iron Flywheel and Belt-Drive Coupling System The large black spoked cast iron flywheel provides the primary belt-drive coupling surface for the V-groove belt that transmits power from the motor pulley to the pump head, with a pulley outside diameter of 260mm that - combined with the motor pulley diameter - determines the pump head operating speed and therefore the actual air displacement delivered at the compressor outlet. The flywheel's rotational inertia smooths the cyclic torque variation from two reciprocating pistons on the crankshaft, reducing the peak motor current spikes that cause motor protection relay tripping in compressor assemblies where the flywheel mass is insufficient for the combined piston displacement. The spoked design reduces the flywheel mass relative to a solid disc of the same outer diameter, contributing to the compact overall weight of the V-2065 while maintaining the rotational inertia needed for smooth operation at the rated speed range.
Technical Specifications
| ITEM | DETAILS |
| Type | Single-Stage Twin-Cylinder V-Configuration Reciprocating Pump Head |
| Application | 3HP belt-drive air compressors; automotive workshops, woodworking facilities, tyre service centres, light industrial pneumatic systems |
| Code | 1401146 |
| Material | Cast iron body and cylinders (black enamel); cast iron spoked flywheel; reed valve plates |
| Details explanation | Model: V-2065; cylinder bore: 65mm × 2; displacement: 250L/min; working pressure: 8 bar (116 PSI); max pressure: 10 bar (145 PSI); pulley OD: 260mm; oil-lubricated |
| Brand Name | SeaSummer |
| Operating Temp | --10°C to +45°C |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Pump Head Replacement on Worn 3HP Belt-Drive Workshop Compressors
Workshop technicians and compressor service specialists install the V-2065 pump head when a 3HP belt-drive compressor develops extended tank recovery time, fails to reach cut-out pressure under normal tool load, or produces increased oil carryover into the delivery air - symptoms that indicate valve plate wear or piston ring degradation reducing volumetric efficiency below the useful working threshold. With the worn pump head removed from the compressor frame, the V-2065 is bolted onto the original mounting points, the flywheel is aligned to the motor pulley with correct V-belt tension and guard clearance, the crankcase is filled to the specified oil level through the fill cap, and a pressure test confirms that the rated 250L/min displacement and 8 bar working pressure have been restored. Replacing the pump head as a complete unit recovers full compressor performance while retaining the existing motor.
Valve Plate and Cylinder Head Inspection on the Workshop Workbench
Before installation, the technician removes the valve cover from each cylinder head and inspects the reed valve plates and valve seats for manufacturing defects, shipping debris, or pre-existing carbon deposits that would reduce volumetric efficiency below the rated 250L/min from the first operating hours. The crankcase oil level is set through the fill cap and verified before the pump is mounted on the frame, confirming that the piston-to-bore lubrication film is established from the first start cycle rather than after a dry-running period that scores the cylinder bore walls. Checking both cylinder heads individually rather than assuming production consistency identifies any individual cylinder fault before it produces a reduced-pressure commissioning result that requires the pump to be removed again for diagnosis - a time cost that the pre-installation inspection eliminates.
Continuous Compressed Air Supply for Multi-Tool Automotive and Workshop Operations
Installed and commissioned on a correctly rated 3HP motor and adequately sized receiver tank, the V-2065 delivers 250L/min at 8 bar - sufficient flow for simultaneous operation of impact wrenches, pneumatic grinders, spray guns, and tyre inflation equipment from a shared workshop compressed air network without the pressure drop that interrupts high-demand tool operations mid-cycle. The cast iron twin-cylinder construction is rated for the sustained thermal and mechanical load of continuous workshop duty cycles, making the V-2065 the appropriate pump specification for automotive workshops, fabrication shops, and tyre service centres where the compressor operates through multiple daily shifts under consistent tool demand rather than the intermittent-duty cycles of lower-utilisation single-operator workshops.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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