Introduction
The HNDP80 3-inch dry run pneumatic diaphragm pump is a high-flow industrial conveying equipment. It delivers powerful pumping performance with a maximum flow rate of 237 GPM (897 LPM). The ultra-large flux easily meets high-volume continuous conveying requirements for various working conditions and achieves higher operating efficiency than conventional pumps of the same specification.
Equipped with an excellent airtight pneumatic system, the pump realizes fully enclosed delivery without secondary contamination, effectively ensuring medium purity and consistent process standards. As a diaphragm pump for hazardous liquid transfer, it supports flexible configuration of various wetted materials and port sizes. It can be customized according to the characteristics of hazardous liquids, corrosive media and viscous materials, making it highly suitable for conveying flammable, explosive, toxic and harmful hazardous liquids in chemical and petrochemical industries with superior safety performance.Adopting mature dry-run technology, it supports long-term no-load standby and dry operation without pump burnout, achieving extremely high tolerance to complex working conditions.
Performance Curve
Product Description
|
Ratio |
1:1 |
|
Maximum Flow Rate |
237 g.p.m. (897 l.p.m.) |
|
Displacement per Cycle |
2.65 gal (10.03 L) |
|
Air Inlet (Female Thread) |
3/4 - 14 N.P.T.F.-2 |
|
Liquid Inlet/Outlet |
3" - 8 N.P.T.F.-1 Rp 3 (3 - 11 BSP Parallel) |
|
Maximum Operating Pressure |
120 psi (8.3 bar) |
|
Maximum Suspended Solids Passage |
3/8" (9.5 mm) |
|
Weight lbs (kg) |
AL: 109.8 (49.8) CI: 213.1 (96.7) |
|
Maximum Dry Lift |
17.6 ft (5.4 m) |
|
Noise Level |
86.3 db(A) at 70 PSI, 60 Cycles per Minute |
Advantages and Features
1. As a professional 3-inch dry run pneumatic diaphragm pump, it adopts mature and reliable dry-run technology, supporting long-term dry operation without fluid, no-load standby, frequent start-stop and alternating high and low load operation. With sufficient pumping power and stable output, it easily handles high-load continuous operation.
2. The HNDP80 diaphragm pump for hazardous liquid transfer adopts a pure pneumatic drive structure with no motor, no electric sparks and no electrical risks, fundamentally avoiding fire, explosion and electric leakage hazards in high-risk working conditions. Equipped with a high-airtight pneumatic system and fully enclosed negative-pressure pumping structure, it effectively prevents external impurity ingress, medium volatilization and secondary pollution.
3. Built with a high-strength aluminum alloy and cast iron structure, the pump features solid rigidity, excellent impact resistance and deformation resistance, adapting to harsh environments with heavy dust, high humidity and temperature fluctuations in mining, oil & gas and chemical industries. Its simple structure contains no delicate vulnerable parts and delivers outstanding wear and aging resistance. It avoids shell deformation, cavity damage and frequent part loss under long-term heavy-load operation, ensuring convenient maintenance and 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
● Petrochemical Hazardous Liquid Transfer Field
The HNDP80 3" pneumatic diaphragm pump is professionally designed for conveying flammable, explosive, toxic, harmful and corrosive hazardous liquids. As a dedicated diaphragm pump for hazardous liquid transfer, it adopts a high-tightness fully enclosed conveying system to effectively prevent volatilization, leakage and secondary pollution of hazardous media, ensuring consistent chemical material purity and stable production standards. Featuring ultra-high flow capacity, it efficiently handles large-volume transfer, waste liquid discharge and medium circulation of petrochemical hazardous liquids, perfectly suiting high-load and high-safety continuous production conditions in the chemical and petrochemical industries.
● High-Flow Industrial Fluid Transfer Field
As a 3-inch dry run pneumatic diaphragm pump, the HNDP80 delivers a maximum flow rate of 897LPM, perfectly meeting the high-load continuous conveying demands of large-volume industrial fluids. It supports alternating high and low load operation and long-duration continuous work. With sufficient pumping power and stable output, it easily handles bulk fluid transfer, pipeline circulation, quantitative filling and centralized waste liquid discharge, greatly improving conveying efficiency for large-scale and standardized factory production.
● Mining, Oil and Gas Harsh Working Condition Field
The HNDP80 adopts a high-strength aluminum alloy and cast iron metal structure with solid rigidity, excellent impact resistance and deformation resistance, enabling it to withstand harsh complex environments with heavy dust, high humidity and temperature fluctuations at mining, oil and gas sites. Designed without precision vulnerable parts, the pump offers outstanding wear and aging resistance. It operates stably for a long time when conveying mine wastewater with solid particles, mineral processing waste liquid, oil and gas fluids and industrial cleaning liquids, and is fully applicable to fixed pipeline continuous operation in mining and oil & gas plants.
FAQ
Q: The equipment faces high load and long operation hours under continuous conveying conditions, and is prone to unstable pressure and discharge fluctuation.
A: Equipped with a high-power high-flow pumping system, the HNDP80 3-inch dry run pneumatic diaphragm pump features sufficient flux and strong power. Optimized for high-load continuous operation, it delivers stable large-flow fluid output with pulse-free uniform discharge and constant pressure, perfectly adapting to large-scale industrial conveying scenarios.
Q: Fine chemical and petrochemical production require extremely high medium cleanliness. Will medium volatilization or external impurity mixing occur during conveying?
A: No. As a diaphragm pump for hazardous liquid transfer, it adopts a fully enclosed negative-pressure pumping structure. The medium is conveyed in a completely closed state without contacting the external environment, effectively avoiding medium volatilization, impurity ingress and secondary pollution, and stably ensuring material purity and finished product quality.
Q: Where to buy the HNDP80 3-inch dry run 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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