Delavan 5950-201 12V Diaphragm Pump – 18.9 L/min, 3.1 Bar (45 PSI)

Delavan 5950-201 – High-Flow 12V Demand Diaphragm Pump

The Delavan 5950-201 is a heavy-duty 12V bypass/demand diaphragm pump built for reliable performance in spray, fluid transfer, and agricultural applications. With a flow rate of up to 18.9 L/min and 3.1 bar (45 PSI) of pressure, it handles everything from boomless nozzle weed spraying to general fluid transfer with ease.

Key Features

• High Flow Rate – Up to 18.9 L/min for fast, efficient fluid delivery
• Bypass / Demand Operation – Automatically cycles on/off based on system demand
• Self-Priming – Primes up to 4 metres for flexible installation
• Viton Valves – Chemical-resistant for use with herbicides and fertilisers
• Santoprene Diaphragm – Durable and compatible with a wide range of fluids
• Quick Attach Ports – 19mm (3/4") 5D snap fit ports for fast hose connection
• 2-Pin Moulded Connector – Simple plug-and-play 12V wiring

Technical Specifications

• Pump Type: Bypass / Demand
• Flow Rate: Up to 18.9 L/min
• Pressure: 3.1 Bar (45 PSI)
• Suction: Self-priming up to 4 metres
• Valves: Viton
• Diaphragm: Santoprene
• Ports: 19mm (3/4") Quick Attach (5D)
• Power: 12V DC – Wire leads with 2-pin moulded connector

Note: If using low flow applications, consider using a pressure control valve to ensure long pressure switch life.