Waterworks

A.R.I. NR-040 D

Check Valve for Waterworks

A.R.I. NR-040D series are Swing-type Check Valves for potable water applications such as pumping stations, surge protection applications along the pipeline and more. It allows for one-directional flow, preventing the return flow of liquid to its source.  The valve has a triple-shaft sealing design, flexible bearings and removable lid; which makes it accurate and durable in long-term harsh conditions. The removable lid enables cleaning and maintenance without removing the valve from the pipeline.

Technical Specifications

Size Unit

Size range

DN80-DN1016 (3”–40”)

Pressure rating

PN16, PN25, PN40, PN64

Working temperature

Maximum working temperature:

90° C

Features & Benefits

Disc anchored at two points
  • Disc anchored at two points Prevents fluttering and turbulent flow
Removable upper cover
  • Easy maintenance without removing valve from the pipeline
Built from special materials
  • High durability in long-term, harsh conditions — withstands water hammer effects
Disc fully opens
  • Minimal energy loss, without pockets to catch debris
Unique seal design
  • Seals at low pressure, prevents wear of sealing area & coating damage.
Flexible installation design
  • Enables both horizontal & vertical installation (upward flow only)