Centered on "bidirectional efficiency + low maintenance + wide adaptation", the YD44-017/YD44-017A Bidirectional Hand Oil Pump solves the pain points of traditional hand oil pumps, such as "single function, need for pre-filling liquid, and frequent lubrication". The main unit and accessory work together to meet both large-volume and temporary small-space oil transfer needs, with core advantages as follows:
- Dual-Direction Operation: Unlike ordinary single-direction hand pumps that require hose disassembly and reversal for function changes, YD44-017 realizes bidirectional oil transfer through an internal valve switch. Simply toggle the valve to switch between "suction" (extracting oil from barrels/tanks) and "filling" (injecting oil into equipment/tanks), saving 80% of switching time. For example, in gas stations, it takes only 1 minute to switch from refueling a generator to extracting residual oil from a tank, avoiding equipment replacement;
- Stable High-Speed Transfer: With a suction speed of 13L per 80 revolutions and 23 revolutions per minute, the average oil transfer rate reaches ~3.7L/min. Transferring a 200L oil barrel takes only 54 minutes, 2 times faster than ordinary hand pumps, significantly reducing manual labor intensity.
- No Pre-Filling Required: Traditional hand pumps need to be filled with liquid first to start suction, which is time-consuming and easy to cause oil spillage. YD44-017 has a built-in enhanced self-priming structure; just rotate the handle to speed up, and it can start suction within 30 seconds, even when the pump is 1m above the oil source. This is especially useful in outdoor emergency oil transfer scenarios (e.g., farm tractor refueling) where pre-filling is inconvenient;
- No Air Bubble Interference: The self-priming system has a built-in air separation chamber, which can discharge air in the oil path in time, ensuring stable suction without intermittent flow, and improving oil transfer efficiency and safety.
- Automatic Lubrication During Transfer: When the pump transfers oil, the oil itself acts as a lubricant, automatically lubricating internal gears and bearings. There is no need to add lubricating oil regularly, reducing maintenance steps and costs. Even with daily 4-hour operation, it can run stably for 3 years without additional lubrication, which is more convenient than traditional pumps that require monthly lubrication;
- Wear-Resistant Internal Parts: Internal gears are made of high-hardness alloy steel, which is wear-resistant and has a service life 3 times longer than ordinary plastic gears. The self-lubrication system further reduces part wear, ensuring long-term stable operation.
- Cast Iron Housing for Durability: The main pump body is made of high-strength cast iron, which can withstand 10kg vertical impact without deformation. It is corrosion-resistant to gasoline, diesel, and oil; even in outdoor rainy environments, it will not rust after 6 months of use, solving the problem of easy rusting of ordinary sheet metal pumps;
- Oil-Resistant Seals for Leak-Proof: The connection between the pump body and ports uses oil-resistant nitrile rubber seals, which have good elasticity and oil resistance. The leakage rate is ≤0.1ml/24h, avoiding oil spillage and environmental pollution. The seals can be easily replaced when worn, reducing maintenance costs.
- Small Footprint: The 96×53×52cm size of YD44-017 occupies only 0.8㎡ of space, which can be placed in the corner of workshops, garages, or farm warehouses without occupying core operation areas. It is 30% smaller than large electric oil transfer pumps, making it suitable for small-scale oil transfer scenarios (e.g., community repair shops);
- Easy to Move: Weighing 33kg, it can be moved by 2 people. The bottom is reserved for caster installation holes (casters can be added separately), which can be converted into a mobile pump for outdoor scenarios such as construction sites and farm fields.
- Small-Space Adaptation: The 15×17×20cm accessory can convert the NPT3/4 main port into a small-diameter port, which is suitable for connecting small hoses in narrow spaces (e.g., refueling small generators with narrow oil ports). It solves the problem that the main unit's large port cannot fit small equipment;
- Temporary Storage Function: The accessory has a 1L temporary storage container, which can be used for short-distance transfer of small amounts of oil (e.g., extracting 500ml residual oil from a car engine). It avoids the waste caused by using large hoses for small-volume transfer and improves the pump's usability in fine operations.
Scenario Requirement: A farm needs to refuel 5 John Deere 5E tractors (each requiring 40L diesel) in the field. There is no power supply on-site, and the operation space is narrow. It is required to complete refueling within 4 hours, with no oil spillage and easy movement.
Operation Process:
- Equipment Preparation and Installation:
- Two farm workers carry YD44-017 to the field, place it 0.5m away from the 200L diesel barrel, connect the NPT3/4 hose to the barrel's oil outlet, and the other end to the tractor's fuel tank;
- Check the valve is in "suction" mode, no need to pre-fill diesel;
2. Batch Refueling Operation:
- Start manual operation: Rotate the handle at 23r/min, with a transfer rate of ~3.7L/min. Each tractor is refueled with 40L diesel in 10.8 minutes. After refueling one tractor, move the pump to the next one (2 people can carry it easily);
- Complete refueling of 5 tractors in 3.5 hours (total 200L, one full barrel of diesel), with no need to switch equipment midway;
3. Operation Effect:
- No Power Dependence: Manual operation meets field no-power needs, avoiding the trouble of carrying generators;
- High Efficiency: 2 times faster than ordinary hand pumps, saving 1.5 hours of operation time;
- No Spillage: Leak-proof seals and stable flow prevent diesel spillage, protecting the field environment.
Scenario Requirement: A community garage needs to change the oil of 3 small generators (each requiring extracting 2L old oil and filling 2L new oil). The generator oil ports are narrow (only compatible with small-diameter hoses), and the operation space is limited (workstation 1.5×2m). It is required to complete oil change within 1.5 hours.
Operation Process:
- Equipment Matching and Setup:
- Install YD44-017A accessory on YD44-017's NPT3/4 port, convert to small-diameter hose (10mm), and connect one end to the generator's oil drain port;
- Toggle the pump valve to "suction" mode;
2. Oil Extraction and Filling:
- Extract Old Oil: Rotate the handle to extract 2L old oil from each generator in 35 seconds, store temporarily in the accessory's 1L container, and then discharge to the waste oil barrel;
- Fill New Oil: Toggle the valve to "filling" mode, connect the hose to the new oil barrel, and fill 2L new oil into each generator in 40 seconds;
- Complete oil change for 3 generators in 1 hour;
3. Operation Effect:
- Small-Space Adaptation: The compact main unit and accessory fit in the narrow workstation, no interference with other tools;
- Narrow Port Compatibility: The accessory's small-diameter hose perfectly matches the generator's oil port, avoiding oil spillage;
- Fast Switching: Bidirectional valve switch saves time, no need to disassemble hoses when changing functions.
Scenario Requirement: A construction site needs to transfer 500L diesel from a large storage tank to 10 concrete mixers (each requiring 50L). The site has uneven ground and no power supply. It is required to complete transfer within 3 hours, with stable operation and no oil waste.
Operation Process:
- Equipment Placement and Connection:
- Install casters on YD44-017 (optional accessory) for easy movement on uneven ground, place it between the storage tank and mixers, and connect hoses to the tank and mixer fuel ports;
2. Batch Transfer:
- Operate the pump at 23r/min, transfer 50L diesel to each mixer in 13.5 minutes. Move the pump to the next mixer via casters, with no need for multiple people to carry it;
- Complete transfer to 10 mixers in 2.8 hours;
3. Operation Effect:
- Uneven Ground Adaptation: Casters ensure stable movement on construction site ground, reducing labor intensity;
- Large-Volume Efficiency: High transfer rate meets 500L batch transfer needs, no need for frequent breaks;
- Durable in Harsh Environments: Cast iron housing resists dust and impact, no malfunction during operation.
A1: This is mainly caused by three reasons: blocked hoses/ports, worn seals, or air leakage. Solve it step by step:
- Check Hoses and Ports: Disconnect the hoses from the NPT3/4 ports, use a thin iron wire to clear impurities (e.g., oil residues, small particles) in the hoses and ports. If the hose is cracked, replace it with a new NPT3/4-compatible hose;
- Inspect Seals: Open the pump's top cover, check the oil-resistant seals at the valve and ports. If the seals are worn, hardened, or cracked, replace them with matching oil-resistant rubber seals (provided by the manufacturer);
- Eliminate Air Leaks: Ensure the hose connections are tight (use pipe clamps to fasten if necessary). If the pump body has air leakage (e.g., loose screws), tighten the screws with a wrench. After handling, test the self-priming function; it should start sucking oil within 30 seconds.
A2: It is only suitable for transferring gasoline, diesel, and oil. Do not use it for ethanol, kerosene, or other liquids, for the following reasons:
- Material Incompatibility: Ethanol is corrosive to the pump's cast iron housing and rubber seals, which may cause housing rust and seal swelling, leading to leakage and shortened service life; kerosene has strong permeability, which may penetrate the seals and cause oil seepage;
- Safety Risks: The pump is not designed for flammable liquids with low flash points (e.g., ethanol). During manual operation, friction may generate static electricity, increasing the risk of fire;
- Function Failure: Liquids with different viscosities (e.g., kerosene is thinner than oil) will disrupt the pump's self-lubrication system, leading to insufficient lubrication and accelerated internal part wear.
A3: Although the pump has self-lubrication, regular maintenance is still needed to extend its service life. Key maintenance points are as follows:
- Daily Inspection: After each use, wipe the pump body with a dry cloth to remove oil stains and dust; check if the hoses and ports are leaking or damaged, and replace damaged parts in time;
- Monthly Maintenance: Disassemble the valve cover, clean the internal valve core with diesel to remove oil residues (avoid using strong solvents); check the wear of internal gears—if there are obvious scratches, contact the manufacturer for replacement;
- Quarterly Maintenance: Replace the oil-resistant seals at the ports and valve (even if no wear is found, regular replacement prevents sudden leakage); inspect the cast iron housing for rust—if rust spots are found, polish them with sandpaper and apply anti-rust paint;
- Storage Maintenance: If not used for more than 1 month, drain residual oil from the pump body and hoses, store in a dry, ventilated place, and cover with a dust cover.
A4: It is recommended to use original YD44-017A accessories. If lost or damaged, handle it as follows:
- Purchase Original Accessories: Contact the manufacturer or authorized distributors to buy YD44-017A accessories. Original accessories have precise size matching with the YD44-017 main unit, ensuring bidirectional flow stability and no leakage;
- Do Not Use Non-Original Accessories: Other brand accessories may have inconsistent port sizes or material incompatibility. For example, if the accessory port is smaller than NPT3/4, it may cause oil blockage; if the material is not oil-resistant, it may deform and leak during use, affecting the main unit's performance and even causing equipment damage;
- Temporary Alternative (Not Recommended for Long-Term Use): If original accessories are not available temporarily, use a standard NPT3/4 to small-diameter adapter (must be oil-resistant metal material) as a temporary replacement. However, this may affect the bidirectional flow rate, so replace it with the original accessory as soon as possible.
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YD44-017/017A Bidirectional Hand Oil Pump: 3.7L/min, Self-Priming, for Farms/Garages/Sites Images
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