D-040 | Combination Air Valve “barak”

250 PSI – 3/4″, 1″, 2″

Description

The D-040 series Combination Air Valve has the features of both an air release valve and an air & vacuum valve. The air release component is designed to automatically release small pockets of air to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure. The air & vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of a pipeline or piping system. This valve will open to relieve negative pressures whenever water column separation occurs.

Product Features

• Combines the features of both an air & vacuum valve and an air release valve.
• Triple function:
  • Air & vacuum component discharges large volumes of air during filling of the system.
  • Air & vacuum component admits large volumes of air during drainage and at water column separation.
  • The air release component releases entrapped air in pressurized systems.
• Dynamic design allows for high velocity air discharge while preventing premature closure.
• Innovative rolling seal mechanism.
• Available in sizes: 3/4″, 1″, 2″ threaded male connections, NPT

Materials and Corrosion Protection

• The body is made of high-strength composite materials.
• All operating parts are made of specially selected, corrosion – resistant materials.

Application Range

• Working pressure range: 3- 250 psi
• Maximum operating temperature: 140°F.
• Maximum intermittent temperature: 194° F.
• For installation:
  • At pump stations
  • Downstream and upstream of shut-off valves After deep-well pumps
  • On long constant-sloped pipeline segments
  • At peaks along the pipeline and at peaks relative to hydraulic gradient.
  • Additional protective shell for anti-vandalism/theft applications.