Introduction
The HNDP15 1/2-inch small aluminum diaphragm pump is constructed with premium cast iron and aluminum alloy materials. Featuring a compact and space-saving structure with a lightweight design, it serves as a professional fluid transfer device for limited-space installations. It delivers a maximum flow rate of 14.4 GPM (54.5 LPM) and supports a variety of material and port size configurations for flexible and versatile application. Equipped with a quiet operation diaphragm pump system, it generates minimal vibration and low noise during operation, creating a quiet and stable working environment suitable for long-term continuous workshop operation. Specially designed as a supporting pump for grinders and sand mills, it efficiently and stably transfers slurries, emulsions and other similar viscous mixed media, perfectly solving fluid conveying difficulties in grinding working conditions. With a sturdy, pressure-resistant and durable metal body, this quiet operation diaphragm pump system operates steadily and adapts precisely to fine conveying processes for small and medium-sized production lines.
Performance Curve
Product Description
|
Ratio |
1:1 |
|
Maximum Flow Rate |
12.0 g.p.m. (45.4 l.p.m.) |
|
Displacement per Cycle |
0.039 gal (0.15 L) |
|
Air Inlet (Female Thread) |
1/4 - 18 N.P.T.F. - 1 |
|
Liquid Inlet/Outlet |
1/2 - 14 N.P.T.F. - 1 Rp 1/2 (1/2 - 14 BSP, Parallel) |
|
Maximum Operating Pressure |
120 psi (8.3 bar) |
|
Maximum Suspended Solids Passage |
100 psi (6.9 bar) |
|
Weight lbs (kg) |
10.4 (4.7) |
|
Maximum Dry Lift |
15 ft (4.5 m) |
|
Noise Level |
75 db(A) at 70 PSI, 60 Cycles per Minute |
Advantages and Features
1. The HNDP15 small aluminum diaphragm pump adopts a lightweight aluminum alloy and cast iron structure. It features a compact and mini-sized body with flexible installation, perfectly suited for confined spaces such as small production lines, supporting equipment installation and narrow mounting positions. The pump body offers high rigidity, excellent pressure resistance, wear resistance and impact resistance. Its sturdy structure resists deformation and withstands regular workshop vibration and operational wear.
2. Equipped with a quiet operation diaphragm pump system, the HNDP15 pneumatic diaphragm pump generates minimal vibration and ultra-low noise during operation, causing no disturbance to the workshop environment or staff operation, making it ideal for refined production workshops with strict noise requirements. With a mature and reliable internal structure and smooth dead-point-free operation, it effectively reduces failure rates and later operation and maintenance costs while achieving a longer service life.
Complete System Installation Schematic
1. Air Source Treatment Unit
Filter Regulator ②: Filters impurities and moisture in compressed air first, then regulates and stabilizes the air pressure supplied to the pump.
Dryer ③: Further removes moisture from compressed air to prevent water vapor from entering the pump chamber and causing internal component corrosion and icing.
Lubricator ④: Atomizes lubricating oil and mixes it into compressed air to lubricate moving parts such as pneumatic valves and diaphragms of the pump and reduce wear.
Supporting components: Air Inlet, Check Valve, Shut-Off Valve.
2. Pump Body and Exhaust System
Pump Body: The core pneumatic diaphragm pump, which drives the diaphragm to move back and forth via compressed air to realize fluid suction and discharge.
Muffler: Installed at the pump exhaust port to reduce exhaust noise.
Piped Exhaust: Discharges waste gas to a safe area to avoid workshop environmental pollution.
Flexible Connection: A flexible connection between the pump and the air source treatment unit to buffer vibration and reduce stress transmission.
3. Fluid Suction Pipeline (Left Side of the Figure)
Suction: The starting point for fluid entering the system, connected to upstream liquid storage tanks or pipelines.
Shut-Off Valve: Cuts off fluid suction for convenient pump maintenance.
Compound Gauge: Monitors suction-side pressure to identify issues such as insufficient suction lift and pipeline blockage.
Flexible Connector: Absorbs pump vibration and prevents stress damage caused by rigid pipeline connection.
Drain Port: Drains residual liquid in the suction pipeline for maintenance or pipeline emptying.
Pipe Connection: Multiple connection types are optional to adapt to on-site pipeline conditions.
4. Fluid Discharge Pipeline (Right Side of the Figure)
Flexible Connector: Buffers pump vibration to protect pipelines and equipment.
Pipe Connection: Consistent with the suction end, adaptable to on-site pipelines.
Drain Port: Drains residual liquid in the discharge pipeline for maintenance and emptying.
Surge Suppressor ①: Stabilizes the pulsating discharge pressure of pneumatic diaphragm pumps and protects pipelines and downstream equipment, serving as a key accessory on the discharge side.
Pressure Gauge: Monitors discharge-side pressure to judge the operating status of the pump.
Shut-Off Valve: Cuts off fluid discharge to facilitate maintenance of the pump and downstream equipment.
Discharge: The terminal outlet of the system, connected to downstream pipelines and equipment.
Unregulated Air Supply to Surge Suppressor: Directly supplies unregulated compressed air to the surge suppressor, utilizing the compressibility of gas to absorb fluid pulsation.
Applications
● Chemical Industry
The HNDP15 small aluminum diaphragm pump stably transports acid, alkali and salt solutions, organic solvents, as well as high-viscosity slurries, emulsions and other viscous media. Featuring excellent pressure resistance, wear resistance and deformation resistance, it adapts to regular vibration conditions in chemical workshops and maintains stable and jam-free long-term operation.
● Intelligent Manufacturing / Coating Industry
Ideal for precision fluid conveying in coating and intelligent manufacturing scenarios, the HNDP15 is equipped with a lquiet operation diaphragm pump system. Its compact and lightweight body fits confined installation spaces and equipment supporting positions on coating production lines. With ultra-low vibration and quiet operation, it fully meets the silent production requirements of dust-free and refined workshops. It enables stable circulation and accurate quantitative conveying of coatings, inks, adhesives and cutting fluids with controllable flow and smooth operation.
● Environmental Protection / Municipal Industry
The HNDP15 1/2" small pneumatic diaphragm pump is suitable for medium and small-scale sewage treatment, leachate transfer and supporting liquid supply in environmental protection and municipal projects. It stably conveys sewage and leachate containing trace corrosive components and fine impurities. Compact and flexibly installable, it adapts to various scenarios such as supporting sewage treatment equipment, narrow machine rooms and mobile liquid supply. With stable performance and a low failure rate, it supports long-term continuous liquid supply for environmental protection equipment.
FAQ
Q: It is concerned that chemical media containing acids, alkalis and organic solvents will cause seal aging and component wear on ordinary small pumps after long-term operation, further leading to leakage, frequent failures and higher maintenance costs.
A: The HNDP15 small aluminum diaphragm pump allows flexible selection of various seal materials. We can match dedicated sealing parts according to different corrosive and viscous media. It effectively resists erosion from acids, alkalis and organic solvents, slows down seal aging and wear, eliminates medium leakage, and greatly reduces equipment failure rate and maintenance frequency.
Q: How to troubleshoot the quiet operation diaphragm pump system during operation?
A: Daily troubleshooting guidance:
①If the pneumatic diaphragm pump fails to work:
1) Check whether the air supply valve is open and the air pressure is stable;
2) Confirm that pipeline valves are fully opened and the pipelines are free of blockage;
3) Inspect blockages at the pump inlet, outlet and pump body;
4) Verify excessive pipeline head or excessively high density of the conveyed liquid.
②If the pump flow rate drops:
1) Ensure the air supply and pipeline valves are fully opened;
2) Check for aging on air valves, pilot valves, diaphragms, valve balls, valve seats and sealing rings. Aging parts will reduce flow capacity and may even cause pump shutdown;
3) Inspect connecting bolts for looseness. Thermal expansion and contraction may cause material deformation of the pump.
Please feel free to contact our after-sales team if you have any problems.
Q: Where to buy the HNDP15 small aluminum diaphragm pump?
A: You may contact our sales team via the email juicy@sxhono.com.cn to obtain product specifications, quotations and selection recommendations. If you have special application requirements, we can also provide you with customized fluid transfer solutions.
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