Introduction
The HNDP25 1" explosion proof air diaphragm pump features powerful performance with a maximum flow rate of 52.2 GPM (197.6 LPM) and supports flexible configuration of various materials and port sizes for wide application and strong customizability. Adopting a pure air-driven design with no power supply or motor structure, it inherently adapts to powerless operating environments and flammable and explosive explosion-proof working conditions, completely eliminating safety hazards such as electric sparks and electric leakage to ensure high operational safety. Featuring outstanding dry-run and idle-run performance without burnout risks, it stably completes various processes including medium conveying, filling, circulation and batching, and is widely used in the ceramics, general industrial, fine chemical and petrochemical industries. As a pneumatic diaphragm pump for mobile equipment, it has a mature and durable structure and excellent compatibility, supporting both fixed installation and flexible mobile operation with stable running performance and high fault tolerance, making it an ideal option for industrial explosion-proof working conditions and mobile fluid conveying scenarios.
Performance Curve
Product Description
|
Ratio |
1:1 |
|
Maximum Flow Rate |
35 g.p.m. (133 l.p.m.) |
|
Displacement per Cycle |
0.16 gal (0.60 L) |
|
Air Inlet (Female Thread) |
1/4 - 18 N.P.T. |
|
Liquid Inlet/Outlet |
1 - 11-1/2 N.P.T.F.-1, Rp1 (1-11 BSP) Rp 1 (1 -11 BSP, Parallel) |
|
Maximum Operating Pressure |
120 psi (8.3 bar) |
|
Maximum Suspended Solids Passage |
1/8" (3.2 mm) |
|
Weight lbs (kg) |
AL: 19 (8.6) CI: 31 (14.1) |
|
Maximum Dry Lift |
20 ft (6.1 m) |
|
Noise Level |
64.5 db(A) at 70 PSI, 60 Cycles per Minute |
Advantages and Features
1. The HNDP25 explosion proof air diaphragm pump adopts a fully air-driven structure with no motor and no electric power required. It needs no external power supply and generates no electric sparks, electric leakage or short-circuit risks during operation. Featuring excellent dry-run and idle-run performance, it can operate continuously for a long time under no-medium and no-load conditions without causing pump damage.
2. As a pneumatic diaphragm pump for mobile equipment, the HNDP25 is constructed with aluminum alloy and cast iron. Boasting a sturdy, durable, compact and lightweight body, it supports fixed installation for long-term continuous production line operation, as well as flexible mobile operation with mobile equipment and trolleys for temporary material transfer, on-site liquid delivery and outdoor working scenarios. It features easy assembly and disassembly and flexible layout, perfectly meeting diversified and mobile fluid conveying requirements.
3. The HNDP25 1" pneumatic diaphragm pump delivers powerful dynamic performance with a high conveying efficiency and a maximum flow rate of 52.2 GPM (197.6 LPM). It supports flexible configuration of various wetted materials and port sizes, enabling customized solutions according to different medium characteristics, pipeline layouts and 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
● Environmental Protection / Municipal Industry
The HNDP25 1" pneumatic diaphragm pump is highly suitable for various sewage treatment and solid waste supporting working conditions in environmental protection and municipal projects. It steadily conveys complex media such as sewage, impurity-containing sludge, leachate and moderately corrosive waste liquid with strong universality. Featuring large flux and high conveying efficiency, it meets the demands of large-volume and continuous sewage transfer and sludge transportation in municipal projects. Adopting a pure air-driven structure, it adapts to humid, watery and outdoor open-air environments without risks of short circuit or motor burnout, ensuring safe and stable operation.
● Intelligent Manufacturing / Coating Industry
The HNDP25 explosion proof air diaphragm pump adapts to refined production conditions for intelligent manufacturing and coating processes. It achieves stable circulation, quantitative conveying and batching of coatings, inks, adhesives and cutting fluids. Its pure air-driven explosion-proof design produces no electric sparks, making it ideal for high-risk refined workshops with dense dust, volatile solvents and flammable and explosive substances. As a pneumatic diaphragm pump for mobile equipment, it fits production line supporting applications, station switching and temporary material replenishment. With dry-run and idle-run capabilities without burnout, it adapts to frequent start-stop and intermittent feeding modes, delivering stable operation and high fault tolerance.
● Construction / Engineering Industry
As a dedicated pneumatic diaphragm pump for mobile equipment, the HNDP25 features a compact, lightweight and easy-to-disassemble structure, perfectly suited for frequent site changes, temporary operations and outdoor construction scenarios. It efficiently conveys viscous and granular media such as mortar, waterproof coatings and grouting materials. Capable of dry running and idling, it adapts to unstable and intermittent material supply on construction sites with high durability and low failure risk. Its high-flow output supports large-area spraying, grouting and material transportation, greatly improving construction efficiency.
FAQ
Q: Paints and adhesives are prone to sedimentation and stratification. After intermittent shutdowns and material interruption of the production line, ordinary pumps are likely to cause blockage and unstable pressure during restarting, resulting in uneven discharge and spraying color difference and affecting the product yield.
A: The HNDP25 1" pneumatic diaphragm pump delivers sufficient power and stable flow. It continuously circulates paints and inks to effectively prevent sedimentation and stratification. It tolerates short-term no-load operation without fluctuation during restart, ensuring uniform and consistent output. It effectively avoids quality defects such as color difference and uneven coating thickness, perfectly meeting the requirements of precision coating mass production.
Q: Construction sites are unfixed and dominated by temporary mobile operations. Conventional pumps are bulky, complicated to install and inconvenient to move, failing to adapt to frequent site switching and resulting in poor flexibility.
A: As a pneumatic diaphragm pump for mobile equipment, it adopts a lightweight metal structure that is sturdy and portable. It features simple disassembly and flexible movement, enabling rapid adaptation to temporary construction and cross-site operation without complicated fixing procedures, greatly improving construction mobility and efficiency. Our team can also reasonably arrange equipment and pipeline systems according to on-site installation conditions to reduce time costs.
Q: Where to buy the HNDP25 explosion proof air 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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