Description
Hansen Maxflo 25/20 / HMFDV2520
The Hansen Max-Flo Diaphragm Valve has been designed with multiple thread and connection combinations to increase overall durability and versatility. The patent pending “Self Cleaning Pilot” ensures the valves are durable and suitable for dirty water applications. Less operating pressure is required, reducing pumping costs and increasing flow. Mini body design allows for easy installation across a wide range of applications and our 30 year time tested performance slow open and close diaphragm ensures no undue stress is placed on pump lines or pumps.
FEATURES AND BENEFITS
- High performance, cost effective trough/tank valve (29 psi, 570 l/min).
- Suitable for side, bottom and top entry.
- Strong, compact design.
- Delivers high volumes of water quickly with unrestricted full flow.
- Patent Pending* “self-cleaning pilot” for use in clean/dirty water.
- Low operating pressure required reducing pumping costs and increasing flow.
- Manufactured from strong, non-corrosive UV stabilised materials.
- Mini body design to enable easy installation.
- Available in Female and Male BSPT, NPT, ACME thread configurations.
- Suitable for high/low pressure operations – from 0.2 Bar to 12 Bar.
- Variable open and close action preventing valve bounce and water hammer.
- Supplied with: Valve body, 20mm, 25mm & 32mm Standard Adaptors, Adjustable Extension Arm, 100mm Blue Flanged Float and 650mm Cord.
SPECIFICATIONS
- PRODUCT CODE: HMFDV2520
- CODE MEANING: Hansen Maxflo Diaphragm Valve
- Hansen Maxflo Valve will operate from .2 to 12 Bar (2.9 to 174 psi) at 20 degrees ºC.
- MAXIMUM WORKING PRESSURE: 12 Bar (174 psi) at 20 degrees ºC.
- MAXFLO VALVE FLOW CHART: Refer to image gallery for graph preview.
- CHEMICAL RESISTANCE OF MAXFLO VALVE
- Please refer to Chemical Resistance Chart in Hansen Australia Website.
- Maxflo Valve is AS/NZS 4020 Approved Product, see certificate at Hansen Australia Website.
OTHER AVAILABLE MAXFLO TROUGH/TANK VALVE
- HMFDV2520L Maxflo 25/20 Long
- HMFDV3225L Maxflo 32/25 Long
FOR SPARE PARTS (Available as seperate purchase)
- HMFDIA 25mm Diaphragm with Stainless Steel Spring
- HMFBODY 25mm Valve Body
- HMFCAP Maxflo Body Cap & Guide Pin
- HMFNUT Maxflo Valve Body Cap Nut
- HMFARM Maxflo Short Control Arm
- HMFXARM Maxflo Adjustable Extension Arm
- HMFSEAL Maxflo Arm Seal
- HMFSCREW 20mm Stainless Steel Screws
- HMFPIN25 25mm Stainless Steel Split Pin
- HMFCORD Maxflo 650mm Cord
- HFLOAT100B 100mm Flanged Float Blue
- HFLOAT100HI 100mm Flanged Float HiViz
- HMA15 25x15mm Standard Adaptor with O-Ring Seal
- HMA20 25x20mm Standard Adaptor with O-Ring Seal
- HMA25 25x25mm Standard Adaptor with O-Ring Seal
- HMA32 25x32mm Standard Adaptor with O-Ring Seal
- HMA40 25x40mm Standard Adaptor with O-Ring Seal
- HMA50 25x50mm Standard Adaptor with O-Ring Seal
- HMAL15 25x15mm Long Tail Adaptor with O-Ring Seal
- HMAL20 25x20mm Long Tail Adaptor with O-Ring Seal
- HMAL25 25x25mm Long Tail Adaptor with O-Ring Seal
- HMAL32 25x32mm Long Tail Adaptor with O-Ring Seal
- HMAL40 25x40mm Long Tail Adaptor with O-Ring Seal
- HMAL50 25x50mm Long Tail Adaptor with O-Ring Seal
MAXFLO INSTALLATION GUIDE (See installation guide in image gallery)
- TROUGH INSTALLATION
- Flush lines into water troughs before installing Max˙Flo Valve into new system.
- Isolate water trough to replace valve in existing scheme.
- Put thread tape on adaptor side that does not have O-ring and start adaptor into trough inlet.
- MAXFLO TOP ENTRY (See image gallery for visual guide)
- TOP ENTRY TROUGH
- Thread Max˙Flo Valve onto adaptor and tighten.
- Determine the on/off point and water level required.
- Use supplied Adjustable Extension Arm when a larger air gap is required.
- Adjust the float and arms to suit required angle.
- TROUGH INSTALLATION
- Thread Max˙Flo Valve onto adaptor and tighten.
- Determine the on/off point and water level required.
- Use supplied Adjustable Extension Arm when a larger air gap is required.
- Adjust the float and arms to suit required angle.
WALL THICKNESS GUIDE
| LONG TAIL ADAPTOR | HMAL15 | HMAL20 | HMAL25 | HMAL32 | HMAL40 | HMAL50 |
| TANK WALL | 14mm | 22mm | 19mm | 24mm | 45mm | 39mm |
Hansen Long Tail Adaptors Maximum Wall Thickness for Tanks when screwed into a Hansen Female Bend
MAXFLO INSTALLATION DIAGRAMS (See full diagrams in image gallery)
- TROUGH INSTALLATION
- Flush lines into water troughs before installing Max˙Flo Valve into new system.
- Isolate water trough to replace valve in existing scheme.
- Put thread tape on adaptor side that does not have O-ring and start adaptor into trough inlet.
- MAXFLO BOTTOM OR SIDE ENTRY TROUGH (See image gallery for visual guide)
- Thread Max˙FloValve onto adaptor and tighten.
- Thread cord through the float, adjust cord to required on/off level then tie off.
TANK INSTALLATION
- Flush lines into water tank before installing Max˙Flo Valve into system.
- Put thread tape on adaptor side that does not have O-ring and start adaptor into tank inlet above or below water.
- Thread Max˙Flo Valve onto adaptor and tighten.
- If the Max˙Flo Valve is installed below water, thread cord through the float, adjust cord to required on/off level then tie off.
ASSEMBLY GUIDE: See image gallery for diaphragm valve assembly instructions.
HANSEN MAXFLO VALVES BROCHURE AND CHEAT SHEETS
- Refer to Hansen Australia Website.
HANSEN MAXFLO AND HIFLO VALVES VIDEO GUIDES & COMMERCIALS
- Refer to Hansen Australia Website.
MAX FLO PARTS AND MATERIALS
- MAX FLO PARTS (Also, available as seperate purchase)
- HMFBODY 25mm Female BSPT Diaphragm Valve Body
- HMFDIA 25mm Diaphragm with Stainless Steel, Spring
- HMFCAP Valve Body Cap with Guide Pin
- HMFNUT Valve Body Cap Nut
- HMFARM Short Control Arm with Arm Seal
- HMFXARM Adjustable Extension Arm
- HMFSEAL Short Control Arm Seal
- HMFSCREW 2x 20mm Stainless Steel Screws
- HMFPIN25 25mm Stainless Steel Split Pin
- HFLOAT100HI 100mm Flanged Float HiViz
- HMFCORD 650mm Cord
- MAX FLO PARTS’ MATERIALS
- DIAPHRAGM VALVE BODY (HMFBODY): Glass Fibre Reinforced Nylon
- DIAPHRAGM (HMFDIA): Nitrile Rubber
- GUIDE BUSH (HMFCAP): Glass Fibre Reinforced Nylon
- SPRING (HMFDIA): Stainless Steel
- SPLIT PIN (HMFPIN25): Stainless Steel
- VALVE BODY CAP (HMFCAP): Acetal
- GUIDE PIN (HMFCAP): Stainless Steel
- VALVE BODY CAP NUT (HMFNUT): Glass Fibre Reinforced Nylon
- ARM SEAL (HMFSEAL): Thermoplastic Polyurethane Elastomer
- SHORT CONTROL ARM (HMFARM): Glass Fibre Reinforced Nylon
- SCREWS (HMFSCREW): Stainless Steel
- ADJUSTABLE EXTENSION ARM (HMFXARM): Glass Fibre Reinforced Nylon
- CORD (HMFCORD): Polyester
- ADAPTOR: Glass Fibre Reinforced Nylon
- ADAPTOR O-RING: EPDM (Ethylene Propylene)
- FLOAT: High Density Polyethylene
- THREAD INSERT: Glass Fibre Reinforced Nylon
- The Max Flo Diaphragm Valve is manufactured from Potable Water approved materials.
- ADAPTORS – BSPT (HMAL AND HMA 15-20-25-32-40-50)
- FLOAT (HFLOAT 115-140)
FREQUENTLY ASKED QUESTIONS
- QUESTION: At present I get valve bounce in my troughs, will the Max-Flo valve stop this?
- ANSWER: Yes, valve bounce is created from high flows at high pressures, because our Hansen Max-Flo valve delivers higher flows than other valves it will effectively reduce line pressure which in return will reduce the incidences of this problem by also reducing water hammer.
- QUESTION: At present I have noticed some shuddering and noise in my pipelines when my pump starts and stops, will your valve stop this?
- ANSWER: Yes, this is called water hammer, we have designed the Hansen Max-Flo Valve to open and close slower than other valves effectively varying the flows at these times to minimise the chance of water hammer.
- QUESTION: Can I use the Hansen Max-Flo Valve as a top entry valve with an air gap?
- ANSWER: Yes, the Hansen Max-Flo Valve can be installed at the top, side or bottom entry as all components come with each valve.
- QUESTION: I have problems with having to constantly clean my valves as my water supply can get dirty at times, how will the Hansen Max-Flo valve handle these conditions?
- ANSWER: Our patent pending “Self Cleaning Pilot” will increase durability and suitability in dirty water situations.
- QUESTION: My troughs have both 20mm & 25mm threaded inlets, does your Hansen Max-Flo Valve come in both sizes?
- ANSWER: Yes, the Hansen Max-Flo Valve comes with the required components to install in 20mm or 25mm threaded inlets. This of course means you only need to buy one valve for all sized inlets.
- QUESTION: What pressure can I run my Hansen Max-Flo Valve at?
- ANSWER: The Hansen Max-Flo Valve will operate from 0.2 bar to 12 bar.
- QUESTION: Will the higher flow cost me more to run my pump?
- ANSWER: No, because the Hansen Super-Flo valve is more efficient than what you are used to. The reduced operating pressure required will equate to higher flows at lower pressures at your pump which in turn will reduce pumping time and cost.
