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)

Vacuum Diaphragm Pump Description

The BSK diaphragm pump offers high volume delivery even at low air pressure and a broad range of material compatibility options available. BSK pumps feature stall resistant design, modular air motor / fluid sections.

Air operated double diaphragm pumps utilize a pressure differential in the air chambers to alternately create suction and positive fluid pressure in the fluid chambers, ball checks insure a positive flow of fluid.

After ventilation, the pump stars to run, and the output pressure reaches the desired output. When the pressure in the output reaches the maximum limits(equivalent both of the inlet&outlet be closed) Pump will stop running. Once the pressure in the pipeline is less than the maximum valve the pump will resume operation..

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.

Diaphragm pump maintenance resetting attention points.

• All sealed parts and the connected positions need to be coated with grease.
• All re-use sealed parts need to be checked if there has damage If there has damage on the surface, please to use a new one.
• The lip direction of the lip shape seal ring need to install to the directed direction on the chart.
• Bolts on the fluid cap need to be fastened alternating to ensure the better sealing effect..

Troubleshooting guidance

1.Air outlet has fluid when pumping

Check if the diaphragm be damaged

Check if the diaphragm bolts loosening

2.The output fluid has bubble

Check the suction pipe joints are well sealed

Check the suction pipe and fluid inlet are well sealed

Check the ring between fluid inlet and fluid cap are with O-ring

Check the diaphragm bolts are fastened

3.Pumping capacity is low

Check if the air supply is stable

Check whether the inlet and outlet is blocked

Check the joint to the fluid inlet is sealed and not leakage

Check if the ball stick to the ball seat or ball seat is not suitable

4. Without reciprocating motion, the air flow is discharged from the exhaust port

Check the sealed ring of the main air valve

Check the sealed ring of the pilot rod valve

Check the sealed ring of the diaphragm rod