Overview

Austworld (AW) DOV20MLF 20mm (3/4") MI Male to FI Female Thread DR Brass Dual Check Valve. Tested and certified in accordance with AS/NZS 2845.1 and Australian Watermark approved. Dual Check Valves are used for protection against cross contamination of non-potable water in low hazardous conditions such as rain water tank systems and domestic meter connections. Not to be used in hot water installations.

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Technical Details

• Manufacturer: Austworld (AW)
• Model: DOV20MLF
• Specifications:
  • Maximum Working Temperature: 1°C to 60°C
  • Minimum Pressure Rating: 60 kPa
  • Maximum Pressure Rating: 1200 kPa
• Thread: 3/4" BSP (20mm Male MI Thread; 3/4" BSP (20mm) Female FI Thread [20MI x 20FI]
• Material: DR Brass
• Features:
  • Watermark Approved
  • Double Check Valve for improved flow
  • Compact Design
  • Protects against backflow and back siphonage
  • Suitable for vertical or horizontal installation
  • 100% factory tested
• Intended Use: Protects against cross contamination of non-potable water in potable water applications for low hazard situations. 
• SKU: DOV20MLF

Package Contents

• Austworld DOV20MLF 20mm (3/4") Dual Check Valve Male to Female (20MI x 20FI) Thread
• Package Weight 350g

Thread dimensions/size note

Australian BSP thread size names can be confusing. The mm and inch naming system are only nominal conventions, they are not the physical measurements of the thread size. E.g. a common 15mm (1/2") fitting will have an actual external male thread diameter or an internal female thread diameter measurement of 20.995mm (0.825"); 20mm (3/4") fitting likewise will measure 26.441mm (1.041") 

Please refer to our BSP sizing chart provided in the last image in our gallery. Feel free to asks us any questions.