Accuvon (Guangzhou) Pumps Co., Ltd
Excellent lobe pump! Excellent solution for you!
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Chemical Fiber Lobe Pump With Acid-Resistant Stainless Steel Protect Plate
Working Principle
Lobe pump is self-priming, valveless positive displacement pump. Through the two parallel shafts in the synchronous gear to driven the rotor synchronous operation, chamber form a vacuum between the rotor vanes and casting surrounding, so that the medium was inhaled, then displaced through the discharge-side. Pump operating direction can be reversed by changing the direction of rotor rotation, to be a two-way pump for reversing operation.
Specifications:
| Description | Rotary Lobe Pumps |
| Rotor | tri-lobe SS 316 |
| Seal | Electric sealing sensor / Double-acting mechanical seal |
| Axial and radial casing protection | Wear-resistant steel / Hardened steel / Stainless steel / SIC |
| Drive | Variable geared motor / Combustion motor / Hydraulic motor |
| Pump | Full of stainless steel |
| Gear | Helical geared motor / Manual adjustable speed motor |
| Speed | 10 - 600 rpm |
| Custom printing | Acceptable |
Parameter of AP 80
| Drive | Weight | Dimensions | |
| KW | KG | L / mm | H / mm |
| 3 | 190 | 1158 | 394 |
| 4 | 202 | 1178 | 419 |
| 5.5 | 223 | 1258 | 454 |
| 7.5 | 236 | 1298 | 454 |
| 11 | 291 | 1380 | 509 |
| 15 | 354 | 1425 | 509 |
Design 1 | Short, s traight pipe connectors with connection flange and gasket, in mm / inches approx.
| AP 80 | DN 50 mm | DN 65 mm | DN 80 mm | DN 100 mm | DN 125 mm |
Solution guidance
| Problem | Possible Cause | Remedy |
|
Motor Operational but No Fluid Delivery | Direction of Rotation | Check direction of rotation is in line with arrow on casing and nameplate |
| Air pocket in suction line | Ensure suction line filled with fluid, pipework slopes upwards, no kinks in suction line and pipework is as straight as possible. | |
| Relief Valve Failure | Clean Relief Valve. Check pressure setting. Recalibrate | |
| Check Valve Jammed | Clean check valve. Check operation | |
| Air Ingress through Seal | Check seals for air ingress, all pipework, and connected gaskets. Check pump O Rings. Replace pump seal if necessary. | |
|
Insufficient Capacity | Relief Valve Opening or Jammed | Check relief valve settings. Recalibrate. Check and clean as a plug may have formed or solid entered jamming open. |
| Air Ingress | Check seals for air ingress, all pipework, and connected gaskets. Check pump O Rings. Replace pump seal if necessary. | |
| Low NPSH | Shorten and enlarge suction line diameter. Deepen suction pipe, increase tank contents, reduce pump speed and check fluid viscosity against pump design | |
| Pump Worn | Check internal lobe spacing. Replace lobes | |
| Check Valve Jammed | Clean check valve. Check operation | |
|
Pump Noisy | Pump Cavitating | Increase pipework diameter. Reduce suction head. Check fluid viscosity. Clean filters. Reduce pump speed. Increase fluid level in tank. |
| Lobe / Rotor Damage | Check lobes and replace if necessary | |
| Misalignment | Realign Pump. Check coupling and rubber | |
| Vibration in safety valve | Increase pressure setting or replace |
Advantage
• Low shear/Pulse free operation
• Excellent for oil/water and high viscosity liquid.
• Ability to pump at constant pressure at different flow rates
• Self-priming to 9.5 meters
• Forward and reverse pumping operation
• Space-saving compact design
• 10 to 1 turn down capability and reverse capability
• Run dry ability for a period of time
Quality inspection photos
