Introduction
The HNDP40 1-1/2" corrosion-resistant pneumatic diaphragm pump is professionally developed for viscous liquid transfer, specially optimized for conveying acid-base solutions and various high-viscosity media. It features a maximum flow rate of 100 GPM (378.5 LPM) and supports a variety of material and port size configurations for strong applicability. Widely used in chemical, general industrial, water treatment and sewage treatment fields, it meets diverse process requirements including fluid transfer, filling, circulation and batching. As a diaphragm pump for viscous liquid transfer, it can stably convey corrosive media and adapt to intermittent operation, flexibly matching various on-demand production conditions with high efficiency and stable and durable performance.
Performance Curve
Product Description
|
Ratio |
1:1 |
|
Maximum Flow Rate |
100 g.p.m (378.5 l.p.m.) |
|
Displacement per Cycle |
0.67 gal (2.54 L) |
|
Air Inlet (Female Thread) |
1/2 - 14 N.P.T. |
|
Liquid Inlet/Outlet |
1-1/2" A.N.S.I./DIN Flange |
|
Maximum Operating Pressure |
120 psi (8.3 bar) |
|
Maximum Suspended Solids Passage |
1/4" (6.4 mm) |
|
Weight lbs (kg) |
PP: 62 (28.1) PVDF: 92 (41.7) |
|
Maximum Dry Lift |
14 ft (4.2 m) |
|
Noise Level |
77.7 db(A) at 70 PSI, 60 Cycles per Minute |
Advantages and Features
1. The HNDP40 1-1/2" corrosion-resistant pneumatic diaphragm pump is an industrial-grade high-flow pump featuring stable fluid delivery and high working efficiency. The optimized flow passage effectively prevents clogging, enabling the pump to convey particle-containing wastewater, slurries and other solid-laden media, making it well-suited for continuous and large-scale production scenarios.
2. As a diaphragm pump for viscosity liquid transfer, it supports a wide range of non-metallic corrosion-resistant material configurations. It delivers excellent resistance to acids, alkalis and organic solvents, and can stably transport strong acid and alkaline fluids, highly corrosive waste liquids, viscous liquids and solid-liquid mixtures with outstanding media compatibility. Adopting a low-shear delivery design, it will not damage the molecular structure of conveyed materials.
3. The HNDP40 pneumatic diaphragm pump is equipped with powerful self-priming capability and supports dry running and long-term idle operation. Its modular detachable structure allows fast and convenient replacement of wearing parts. The bolted fastening sealing design achieves zero-leakage delivery, effectively reducing material loss and operational costs.
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
● Petrochemical Working Condition
The HNDP40 corrosion-resistant pneumatic diaphragm pump adopts pure pneumatic drive with no electric spark risk and reliable explosion-proof performance, enabling safe operation in flammable and explosive working environments. Pump body and wetted part materials can be customized according to actual petrochemical media, effectively resisting erosion from corrosive liquids, chemical waste liquids, viscous oils and other complex media to extend service life. Featuring high-flow and stable operation, it supports intermittent start-stop operation and perfectly adapts to on-demand production in the chemical industry.
● Metallurgy and Mining Working Condition
As a diaphragm pump for viscous liquid transfer, the HNDP40 is equipped with large-flow flow passages to efficiently convey solid-liquid mixed media containing mine particles, sediment slurry and mining wastewater. The whole pump features excellent corrosion and wear resistance and supports long-term dry running, fully adapting to intermittent operation in metallurgy and mining scenarios. With powerful self-priming capacity and matched control system, it supports remote start-stop operation to reduce labor costs. The zero-leakage sealing structure effectively prevents leakage of waste liquid and mine slurry.
● Construction Engineering Working Condition
The HNDP40 corrosion-resistant pneumatic diaphragm pump features a compact structure and flexible installation, supporting both mobile and temporary fixed mounting to meet flexible layout requirements on construction sites. With high-flow delivery and excellent clogging resistance, it can quickly drain site water and transfer mud waste liquid, greatly saving construction time. It allows dry running and intermittent operation with a low failure rate, fully suitable for outdoor construction operations.
FAQ
Q: Worried that pumping viscous and solid-laden media will cause blockages in the pump and pipelines, resulting in uneven output flow.
A: A filter can be installed at the inlet of the HNDP40 corrosion-resistant pneumatic diaphragm pump to block large solid impurities. Regularly inspect wetted parts such as diaphragms and ball valves and replace worn components in a timely manner. The pump adopts a detachable modular structure with externally accessible air valves, allowing convenient pump chamber cleaning and daily maintenance.
Q: How to troubleshoot the HNDP40 corrosion-resistant pneumatic diaphragm pump during operation?
A: Daily troubleshooting guidance:
① If 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.
② If 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 Corrosion-resistant pneumatic 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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