Introduction
The HNDP15 air diaphragm pump without electricity is driven purely by compressed air for safe and reliable operation. It features a compact structure and small footprint, with a maximum flow rate of 14.4 GPM (54.5 LPM). A wide selection of materials and port sizes is available for flexible configuration. As a grinder air operated diaphragm pump, it efficiently conveys slurries, emulsions and other media. Boasting great versatility and stable performance, it is an ideal choice for grinding processes and various small-scale fluid transfer applications.
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 |
3/32 in. (2.4 mm) |
|
Weight lbs (kg) |
16.6 (7.5) |
|
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 1/2" air diaphragm pump without electricity is fully driven by compressed air and requires no power connection or motor structure, making it suitable for high-risk working conditions such as humid environments, flammable and explosive areas, and dust-intensive sites. Lightweight and easy to handle, it requires no complicated fixing accessories for installation, enabling convenient disassembly, assembly and flexible layout.
2. As a grinder air operated diaphragm pump, the HNDP15 features smooth flow passages to effectively prevent accumulation and blockage of viscous materials, ensuring consistent, uninterrupted and stable material output. Constructed of high-quality stainless steel, it delivers high structural strength, excellent wear and corrosion resistance, and strong deformation resistance. It withstands medium scouring and operational wear while maintaining stable dead-point-free operation.
3. The HNDP15 1/2" pneumatic diaphragm pump supports optional configurations of various seal materials and port sizes, allowing flexible customization to adapt to corrosive media, viscous materials, on-site pipeline layouts and diverse production processes.
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
● Oil & Gas / Chemical Parks
The HNDP15 air diaphragm pump without electricity is fully air-operated without an electric motor or spark generation, delivering intrinsic explosion-proof performance. It is perfectly suited for high-risk flammable and explosive working conditions in oil and chemical parks, safely transporting various oil products and flammable chemical raw materials for tank unloading, tank transfer and medium conveyance. Constructed of stainless steel, it resists corrosion and aging caused by oil and chemical media with a robust structure to withstand complex operational wear in chemical parks.
● Metallurgy / Mining Industry
As a high-performance industrial pneumatic conveying device, the HNDP15 1/2" pneumatic diaphragm pump reliably adapts to harsh mining conditions and stably transports impurity-containing and slightly corrosive media such as mineral slurry, mining reagents, smelting waste liquid and dust water supply. Serving as a dedicated grinder air operated diaphragm pump, it features smooth flow passages without clogging, ensuring stable long-term feeding, reagent delivery and dust removal water supply for mining operations with ultra-low failure rates and excellent durability.
● Shipbuilding / Offshore Engineering
The HNDP15 stainless steel pneumatic diaphragm pump offers superior salt spray and seawater corrosion resistance for stable conveyance of ship bilge water, fuel oil and various chemical media on offshore platforms. Adopting a purely air-driven design without electricity, it eliminates all electrical safety hazards and adapts to confined, humid, salt-spray and flammable offshore working environments. Its compact, lightweight and flexible structure fits narrow ship cabins and confined platform spaces, supporting long-term, high-frequency continuous operation for marine engineering applications.
FAQ
Q: In high-salt spray and high-humidity environments of ships and offshore platforms, ordinary metal pumps are prone to salt corrosion and oxidation, resulting in rusting, component aging, seal failure and medium leakage.
A: The HNDP15 pneumatic diaphragm pump adopts high-quality stainless steel with excellent salt spray and seawater corrosion resistance. It effectively resists erosion in high-salinity and humid marine environments without rusting or deformation. Equipped with anti-corrosion sealing parts, it maintains stable sealing performance, eliminates medium leakage, greatly extends service life in marine working conditions and reduces replacement and maintenance costs.
Q: Mining and metallurgical sites feature heavy dust and high humidity, which easily cause dust accumulation, moisture damage and circuit aging on electric pumps, leading to frequent short circuits and shutdown failures.
A: As an air diaphragm pump without electricity, the HNDP15 is fully air-driven and immune to dusty and humid environments. It avoids circuit faults and sudden shutdowns, making it suitable for harsh outdoor and indoor mining and metallurgical conditions. With a simple structure and no vulnerable electrical components, it enables easy maintenance and ensures continuous and stable production.
Q: Tank unloading and transfer operations are mostly temporary and mobile scenarios. Conventional pumps are bulky, difficult to install and move with poor flexibility. Long-term oil transportation also easily causes seal corrosion and oil leakage, resulting in material waste and potential safety hazards.
A: The HNDP15 1/2" pneumatic diaphragm pump features a compact and lightweight body for easy disassembly, installation and movement, perfectly adapting to temporary mobile delivery and narrow tank area spaces. Its stainless steel body and optional multi-specification seals provide excellent oil corrosion resistance and stable sealing performance. It achieves leakage-free delivery for flammable oil media, eliminates material waste and safety risks, and delivers flexible and efficient operation.
Q: Where to buy the HNDP15 grinder air operated 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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