High-flow float valve for controlling water level in tanks and troughs.

The Hansen Max-Flo 32/25 Long is a diaphragm trough valve supplied with 25mm and 32mm long-tail adaptors, an adjustable extension arm, 100mm float and 650mm cord. It can be installed as a top, side or bottom-entry valve.

Key features

• Model: HMFDV3225L — Max-Flo 32/25 Long
• Includes 25mm and 32mm long-tail adaptors
• Adjustable extension arm, 100mm float and 650mm cord supplied
• Slow-close action designed to help reduce water hammer
• Self-flushing pilot hole for use in clean or dirty-water situations
• Anti-syphon holes can be opened where the outlet is submerged or an extension outlet tube is used, provided they remain above water level

Technical information

• 25mm (1in) BSPT valve connection
• Operating pressure: 0.2 to 12 bar; maximum 12 bar at 20°C
• Maximum stated flow: 570 litres per minute at 29 psi

Installation guidance

• For side or bottom entry, apply thread tape to the adaptor end without the O-ring before fitting it to the trough inlet, then thread the valve onto the adaptor.
• Keep the float arm vertical for correct operation and do not force it.
• The valve can take up to eight seconds to close fully.