Introduction
The HNDP50 chemical transfer diaphragm pump 2 inch delivers powerful performance and ultra-large flux, with a maximum flow rate of 172 GPM (651 LPM). It supports flexible configuration of various wetted materials and port sizes, enabling customized solutions according to different medium characteristics, working environments and process requirements, featuring wide applicability and strong versatility. As dedicated conveying equipment for the chemical industry, it easily handles high-pressure and high-viscosity fluid pumping in petrochemical scenarios and stably performs full-process operations such as medium transfer, filling, circulation and batching.
As a diaphragm pump for low-temperature fluids, it maintains stable operation in low-temperature environments without jamming, freezing blockage or component embrittlement, perfectly adapting to low-temperature material transportation, low-temperature workshop operations and outdoor low-temperature construction. Widely applied in ceramics, coatings, oil and gas, mining, electronics, fine chemical and petrochemical industries, it efficiently conveys complex media including conventional fluids, high-viscosity slurries, high-pressure media and low-temperature fluids with stable and durable operation and high fault tolerance.
Performance Curve
Product Description
|
Ratio |
1:1 |
|
Maximum Flow Rate |
172 g.p.m. (651 l.p.m.) |
|
Displacement per Cycle |
1.4 gal (5.3 L) |
|
Air Inlet (Female Thread) |
3/4 - 14 N.P.T.F.-1 |
|
Liquid Inlet/Outlet |
2 - 11-1/2 N.P.T.F.-1 Rp 2 (2 - 11 BSP Parallel) |
|
Maximum Operating Pressure |
120 psi (8.3 bar) |
|
Maximum Suspended Solids Passage |
1/4" (6.4 mm) |
|
Weight lbs (kg) |
129.9 (58.9) |
|
Maximum Dry Lift |
27.2 ft (8.3 m) |
|
Noise Level |
85.3 db(A) at 70 PSI, 60 Cycles per Minute |
Advantages and Features
1. The HNDP50 delivers powerful pumping power with an ultra-large throughput and a maximum flow rate of 651 LPM (172 GPM). Featuring an optimized and widened flow chamber structure, it allows smooth passage of solid particles within 6.4mm, efficiently conveying high-viscosity slurries, dense adhesives and impurity-containing chemical media.
2. As a chemical transfer diaphragm pump 2 inch, the HNDP50 adopts an integrated aluminum alloy and cast iron casting structure with high structural strength, excellent compression resistance, impact resistance and mechanical wear resistance. It provides sensitive pneumatic response and high air utilization efficiency, effectively avoiding compressed air waste and ensuring continuous, stable material delivery without flow interruption.
3. As a diaphragm pump for low temperature fluids, the HNDP50 features core components optimized with low-temperature modification. It maintains excellent toughness and tight sealing in low-temperature environments, effectively preventing common low-temperature failures such as component embrittlement, hardened and cracked seals, pipeline freezing and pump jamming. Adopting a modular integrated structure, it has fewer wearing parts and allows easy disassembly and assembly without professional tools, saving time and effort for daily inspection and parts replacement.
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
● Chemical Industry
As a diaphragm pump for low temperature fluids, the HNDP50 is equipped with an optimized widened flow chamber, enabling smooth passage of fine solid particles and effectively preventing clogging caused by high-viscosity slurries. It perfectly solves conveying difficulties of high-viscosity and impurity-containing chemical media. Adopting a pure air-driven explosion-proof design with low-shear delivery performance, it ensures safe operation in high-risk chemical working conditions while maintaining the stability of medium composition, making it suitable for various refined chemical production processes.
● Oil & Gas / Chemical Parks
The HNDP50 chemical transfer diaphragm pump 2 inch features a motorless and pure air-driven explosion-proof structure with no electric spark or electrical hidden danger. It fully adapts to flammable and explosive high-risk environments in oil and chemical parks, safely transporting flammable oil products and volatile chemical raw materials for core processes such as tank unloading, tank transfer and medium conveyance. With a super-large flow rate of 651LPM, it efficiently completes large-volume medium turnover and significantly improves overall transfer efficiency in chemical parks.
● Intelligent Manufacturing / Coating Industry
The HNDP50 is well suited for intelligent manufacturing and precision coating processes, supporting stable circulation, quantitative conveying and batching of coatings, inks, high-viscosity adhesives and cutting fluids. As a chemical transfer diaphragm pump 2 inch, it adopts a low-shear conveying principle to deliver materials gently without damaging the molecular structure, effectively preserving the color and performance of coatings and inks. Its high-flow output meets the demand for high-speed circulating feeding on production lines and perfectly adapts to mass coating production.
FAQ
Q: HNDP50 pneumatic diaphragm pump be damaged under intermittent operation with frequent start-stop and temporary no-load conditions?
A: The HNDP50 chemical transfer diaphragm pump 2 inch supports long-term idling, dry running and no-load standby operation. It will not burn out or suffer core component damage under material-break conditions, making it perfectly suitable for intermittent start-stop and discontinuous feeding modes. It features high fault tolerance and low operating loss, effectively reducing downtime frequency and cutting equipment maintenance and replacement costs.
Q: In low-temperature constant-temperature working conditions, is there a risk of hardened seals and pump jamming that causes unstable pressure and material interruption?
A: As a diaphragm pump for low-temperature fluids, the HNDP50 adopts low-temperature modified core components. It maintains reliable sealing performance and flexible operation in low-temperature environments without freezing blockage, jamming or seal cracking. It delivers stable flow and pressure throughout operation, adapting to low-temperature and constant-temperature production in coating workshops and ensuring continuous pipeline operation to avoid production delays caused by equipment failure.
Q: Where to buy the HNDP50 chemical transfer diaphragm pump 2 inch?
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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