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3 Inch Pneumatic Diaphragm Pump Opening Discharge Low Noise

Categories Pneumatic Diaphragm Pump
Brand Name: BSK
Model Number: 3 Inch Air Diaphragm Pump
Place of Origin: Guangzhou
MOQ: Negotiation
Price: Netotiable
Payment Terms: FOB T/T
Supply Ability: 10000/mon
Delivery Time: 5days
Packaging Details: carton
hs code: 8413501020
product: Pneumatic Diaphragm Pump
Maximum flow rate: 378l/min
Maximum lift: 70m
Application: Waste Oil Diaphragm Pump
Size: 3 Inch Air Diaphragm Pump
Feature: Low Noise
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3 Inch Pneumatic Diaphragm Pump Opening Discharge Low Noise

3 Inch Pneumatic Diaphragm Pump Opening Discharge Low Noise

Pneumatic Diaphragm Pump Features

1. No electrical motor - non sparking.
2. No mechanical seals or gland packing.
3. The pumps can run dry indefinitely without damage.
4. Safe for use in hazardous/explosive environments.
5. Variable flow - simply regulate the inlet air supply to adjust the pump flow from zero to max.
6. If discharge is clogged or closed pump stops immediately; no power consumed, no wear.
By opening discharge, flow starts automatically.
7. Self-priming from a dry start up to 6 meters without a foot valve.
8. Pressure up to 100 PSI (7 bar).
9. Operates submerged or with flooded suction.
10. No close fitting, sliding or rotating parts so can handle a wide range of fluids with high solid content.

Pneumatic Diaphragm Pump Parameters

DescriptionUnitReference Figure
Maximum air inlet pressureMpa0.83
Maximum flow rateL/Min378
Maximum liftM70
Maximum outlet pressureMpa0.83
Maximum particle sizemm6
Noise leveldb<70

3 Inch Air Diaphragm Pump Advantage:

Pneumatic diaphragm pumps are operated with compressed air . diaphragm pumps is suitable for pumping fluids with particles, and various liquids, which are highly viscous, volatile, corrosive or toxic, as well as colloids. The pump body is made of aluminum alloys, cast iron or stainless steel. The diaphragm is made of high quality rubber such as Nitrile rubber, chloronorgutta rubber, fluoroine rubber. The diaphragm pumps are widely used in the petroleum chemical, electronic, ceramic, food and textile industries.

Remark: The pumps weight in the table are approximation.. Will be caused differences because of the components. Just for reference.

Material Temperature Limits(Diaphragm/ball/sealed material)


Application temperature range


10°-180°F (-12°- 82°C)


-40°- 225°F (-40°- 107.2°C)


40°- 220°F (4.4°- 104°C)


10°- 180°F (-12°- 82°C)


-40°- 350°F (-40°-176.6°C)


-20°-150°F (-12°- 93°C)


10°-200°F (-28.9°- 65.5°C)


32°- 175°F (0 -79.4°C)

Pneumatic Diaphragm Pump Application

Stainless Diaphragm Pump MAINTENANCE

  • Refer to the part views in the assembly chart for the parts’ number and name to understand the information of the part and service kits.
  • Parts which marked with “Vulnerable parts”, to prepare these parts in hand will help you save time for fast maintenance and reduce downtime.
  • Maintenance service kits’ functions are separated into 2 independent sections: 1, Air kits; 2, Wet kits. Wet kits will be further subdivided to match the material options for typical parts.
    • Provide a clean work surface to protect sensitive internal moving parts from contamination from dirt and foreign matter during service disassembly and reassembly.
    • Keep good records of service activity and include pump in preventive maintenance program.
    • Before disassembling, empty captured material in the outlet manifold by turning the pump upside down to drain material from the pump
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