Introduction
Featuring a sturdy and durable overall structure with high stability, excellent aging resistance and deformation resistance, the HNDP25 1-inch viscous liquid diaphragm pump delivers long-term stable operation for continuous and intermittent complex industrial working conditions. It achieves a maximum flow rate of 52.2 GPM (197.6 LPM) with steady and uniform pumping output. Supporting flexible configuration of various wetted materials and port sizes, it can be customized to adapt to media with different viscosity and corrosiveness, offering outstanding versatility. Adopting a high durability diaphragm pump design, it requires no external power supply and is perfectly suitable for powerless working environments and flammable & explosive explosion-proof scenarios with zero electrical safety hazards. Designed with high durability, the diaphragm pump adopts mature dry-run technology to support long-term no-load standby and dry operation without burnout risks, realizing extremely high working condition fault tolerance.
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) |
29 (13.1) |
|
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. Adopting a high durability diaphragm pump design and premium stainless steel construction, the HNDP25 pneumatic diaphragm pump features high rigidity, robust wear resistance, and excellent anti-aging, anti-deformation and anti-impact performance. Powered by pure pneumatic drive, it generates no electric sparks, electrical faults or leakage risks, delivering intrinsic explosion-proof safety.
2. As a viscous liquid diaphragm pump, the HNDP25 diaphragm pump supports flexible configuration of various wetted materials and port sizes, enabling customized adaptation according to the viscosity, corrosiveness and impurity content of different media. Its optimized internal flow channel effectively reduces conveying resistance for high-viscosity materials, ensuring stable and consistent pumping output without flow stagnation, material accumulation or discharge fluctuation.
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
● High-Viscosity Chemical Industry
The HNDP25 1-inch viscous liquid diaphragm pump features a smooth and unobstructed internal flow channel, which effectively reduces resistance when conveying viscous materials. It stably handles medium and high-viscosity chemical media such as resin, glue, paint and thick additives. It delivers steady and consistent pumping performance without flow stagnation, material accumulation or flow fluctuation, supporting precise chemical processes including medium transfer, pipeline circulation, quantitative batching and filling.
● Ceramic Industry
Tailored for ceramic production conditions, this pump reliably conveys ceramic glaze, slurry and viscous clay media, solving the common industry pain points of difficult transportation and frequent clogging of viscous ceramic slurry. Adopting a high durability diaphragm pump design, it is wear-resistant, impact-resistant and deformation-resistant, capable of withstanding long-term mild scouring from fine particles in ceramic materials for stable operation and low failure rates. The pure pneumatic design eliminates electrical hazards, making it suitable for humid and dusty workshop environments in ceramic manufacturing.
● General Explosion-Proof Industrial Field
Featuring a motor-free and pure pneumatic explosion-proof design, the HNDP25 diaphragm pump produces no electric sparks or electrical faults with intrinsic safety and explosion-proof performance. It is widely applicable to high-risk flammable and explosive scenarios involving chemicals, petrochemicals, oil materials and volatile substances, as well as powerless field environments and emergency power-off conditions in enclosed workshops. With stable operation and strong versatility, it transports conventional fluids, low-viscosity additives and cleaning liquids, and supports general processes such as transfer, circulation, liquid supply and batching.
FAQ
Q: Some high-viscosity chemical media are slightly corrosive, which may cause aging of internal pump parts and seal failure during long-term transportation.
A: This viscous liquid diaphragm pump supports personalized selection of various corrosion-resistant wetted materials. Equipped with a high-durability stainless steel body, it delivers excellent corrosion resistance and aging resistance, maintaining stable performance and accurate chemical processing precision during long-term operation.
Q: Complex industrial environments with high humidity, heavy dust and temperature fluctuations easily cause equipment aging, deformation and unstable operation, resulting in frequent shutdown failures.
A: Designed with high durability diaphragm pump design with a stainless steel body, the HNDP25 diaphragm pump features outstanding anti-aging, anti-deformation, moisture-proof and dust-proof performance. It remains unaffected by harsh working conditions and ensures long-term stable continuous operation, effectively reducing downtime and sustaining consistent production.
Q: Where to buy the HNDP25 viscous liquid 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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