Industry

A.R.I. D-020

Reduced Bore, Combination Air Valve for Non-clean Water

A.R.I. D-020 is a reduced bore, Combination Air Valve installed on non-clean water transmission systems. The Air Valve is designed to improve hydraulic operation by protecting the pipeline, increasing pipeline efficiency, and reducing energy requirements. The unique body shape of the valve, enables a continuous air gap that separates the non-clean water from the sealing mechanism and helps to avoid deposits or blockage. Applicable for: Desalination & Seawater, Mines, Marine - Ballast Water, Oil & Gas, Food Industry, Power Plant Cooling, CBM, Hydro / Thermal Power.
Certifications
PED

CE PED Certificate of Conformity

ATEX

ATEX Certified Explosion Protection, Directive 2014/34/EU (ATEX)

Downloads

Product Page (PDF)

EN

IOM (PDF)

EN

HE

Technical Specifications

Size Unit

Size range

DN50 - DN200 (2" - 8")

Pressure rating

PN16

Working pressure range

0.05 - 16 bar

Working temperature

Maximum working temperature:

60° C

Maximum intermittent temperature:

90° C

Available construction materials

Stainless Steel, Cast Steel, Super Duplex

End connection type

Flanged ends to meet various requested standards.

2″, 3” valve connections: flanged or threaded BSP/NPT.

Optional add-on components

One-way Out – allows for air discharge only, prevents air intake.
One-way In – allows air intake only, not allowing air discharge.
Non-slam – discharge-throttling attachment, allows full air intake, throttles air discharge.

A.R.I. D-020

A.R.I. D-020

A.R.I. D-020

A.R.I. D-020

Features and Benefits

Conical body / funnel-shaped lower body
  • Maximum air gap, minimum body length
  • Residue matter falls back into the system pipeline
Continuous air gap
  • Separates the liquid from the sealing mechanism
Aerodynamic float assembly
  • High velocity air will not close the valve under rapid filling operation
  • Reduces accumulation of fat or grease buildup
  • Free movement will not unseal the sealing mechanism
Sealing assembly
  • Provides smooth, reliable opening/closing, and leak-free sealing over a wide range of pressures
Cushioned spring connection
  • Cushioned joint allows continuous air discharge under vibration conditions related to turbulence from pump start and shut-off, or from flow fluctuations.
Cover assembly
  • Allows complete drop-in replacement, reducing maintenance downtime

Related Media

Animation of A.R.I. D-020, D-25 Combination Wastewater Air Valves operation

Maintenance of A.R.I. Underground Air Valve D-020

Installation of A.R.I. Underground Air Valve D-020

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