Non Return Valves (Check Valves)

In-line protection from water backflow or siphoning

TruDesign Non-Return Valves (Check Valves) are made from UV stabilised glass reinforced Nylon, these composite material fittings are designed for the harsh marine and agricultural environments. They can be used in line to prevent water backflow or siphoning and have a very low cracking pressure. Available in 6 sizes (in-line) and two sizes (Threaded):

  • High impact and tensile strength - “Water hammer safe” and insensitive to pressure shocks in the pipeline
  • Stainless spring - No corrosion issues or risk of internal valve staying open
  • Low cracking pressure - Minimal pressure required to open the valve with minimal restriction on flowrate
  • In line fitting - Minimal installation room needed and no other fittings required
  • Printed white arrow (opposite logo side) - Quick and easy identification of water flow direction
Content image

Product Highlights

New Zealand Made
Designed and made in our world class manufacturing facility here in New Zealand.
Strong and Lightweight.
Manufactured from a glass reinforced nylon composite - High strength without the weight.
UV Resistant.
Will not degrade or discolour from the sun’s ultraviolet rays. 

Parts

  Number Size Thread View
Non-Return Valve ¾" 90804 3/4"
19mm
Non-Return Valve 1" 90805 1"
25mm
Non-Return Valve Tail 25mm 1" BSP 90990 1"
25mm
BSP
Non-Return Valve Tail 25mm 1" NPS 91291 1"
25mm
NPS
Non-Return Valve 1¼" 90806 1 1/4"
32mm
Non-Return Valve 1½" 90807 1 1/2"
38mm
Non-Return Valve Tail 38mm 1½" BSP 90980 1 1/2"
38mm
BSP
Non-Return Valve Tail 38mm 1½" NPS 91293 1 1/2"
38mm
NPS
Non-Return Valve 2" 90812 2"
50mm
Non-Return Valve 1⅛'' 90950

Documentation

Frequently Asked Questions

  • Fitting sanitary hose to hose tails
  • Can I run Petrol or Diesel through TruDesign fittings ?