About these items Constructed with materials like PP or aluminum alloy pump bodies, along with PTFE or triple - layer rubber diaphragms for heat, corrosion, and wear resistance. The full - bolt structure ensures a secure seal, allowing for long - term use and dry - running without damage. Offer different maximum flow rates (from 4.4 GPM to 158 GPM), maximum pressures (100 PSI or 114 PSI), and maximum head lifts (170 ft to 262 ft), enabling efficient liquid transfer. Feature industry - standard ports that can easily integrate with existing piping and fittings, ensuring stable airflow, enhanced pneumatic performance, and reliable operation. Can handle a variety of liquids including waste oil, hydraulic oil, gasoline, detergents, and beverages. Suitable for acidic and alkaline liquids, but not for abrasive media or liquids above 140°F/60°C. Ideal for industries such as petroleum, metallurgy, printing, water treatment, and automotive. Also useful for contractors dealing with viscous fluids like asphalt and paints, or for home rainwater collection systems. Key Differences Item Model Number Different models: QBY - 15PP, QBK - 25, QBY - 15, QBY4 - 25, QBY4 - 50. Pump Body Material QBY - 15PP: PP + Aluminum Alloy. QBK - 25: PP + Aluminum Alloy. QBY - 15: Aluminum Alloy. QBY4 - 25: Aluminum Alloy. QBY4 - 50: Aluminum Alloy. Diaphragm Material QBY - 15PP, QBK - 25, QBY - 15: PTFE diaphragms. QBY4 - 25, QBY4 - 50: Triple - layer rubber diaphragms. Performance Specifications QBY - 15PP: Max flow rate 4.4 GPM, max pressure 100 PSI, max head lift 170 ft, max suspended solids 0.06 in. QBK - 25: Max flow rate 25 GPM, max pressure 100 PSI, max head lift 226 ft, max suspended solids 0.1 in. QBY - 15: Max flow rate 6.6 GPM, max pressure 100 PSI, max head lift 226 ft, max suspended solids 0.06 in. QBY4 - 25: Max flow rate 35 GPM, max pressure 114 PSI, max head lift 262 ft, max suspended solids 0.1 in. QBY4 - 50: Max flow rate 158 GPM, max pressure 114 PSI, max head lift 262 ft, max suspended solids 0.2 in. Specifications QBY - 15PP Item Model Number: QBY - 15PP Maximum Flow Rate: 4.4 GPM/16.64 L/min Maximum Pressure: 100 PSI Maximum Head Lift: 170 ft/51.82 m Max Suspended Solids: 0.06 in/1.5mm Material: PP + Aluminum Alloy QBK - 25 Item Model Number: QBK - 25 Maximum Flow Rate: 25 GPM/95 L/min Maximum Pressure: 100 PSI Maximum Head Lift: 226 ft/68.88 m Max Suspended Solids: 0.1 in/2.5 mm Material: PP + Aluminum Alloy QBY - 15 Item Model Number: QBY - 15 Maximum Flow Rate: 6.6 GPM/25 L/min Maximum Pressure: 100 PSI Maximum Head Lift: 226 ft/68.88 m Max Suspended Solids: 0.06 in/1.5 mm Material: Aluminum Alloy QBY4 - 25 Item Model Number: QBY4 - 25 Maximum Flow Rate: 35 GPM/132 L/min Maximum Pressure: 114 PSI Maximum Head Lift: 262 ft/79.86 m Max Suspended Solids: 0.1 in/2.5 mm Material: Aluminum Alloy QBY4 - 50 Item Model Number: QBY4 - 50 Maximum Flow Rate: 158 GPM/598 L/min Maximum Pressure: 114 PSI Maximum Head Lift: 262 ft/79.86 m Max Suspended Solids: 0.2 in/5 mm Material: Aluminum Alloy Package Content For all models 1 x Air Operated Diaphragm Pump 1 x User Manual
| Batteries Included | No |
| Power Supply | None |
| Color | 1 Inch 35 GPM |
| SKU | sr251226145668535903855 |
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