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D-43 | Combination Air Valve for Industry

הורדות

  • Install & Maintenance:
PN 16

Description

The D-43 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.

Main Features

  • Working pressure range: 0.2 - 10 bar; 0.2 - 16 bar.
  • Testing pressure: 1.5 times the maximum working pressure of the air valve.
  • Maximum working temperature: 60°C.
  • Maximum intermittent temperature: 90°C.
  • Reliable operation reduces water hammer incidents.
  • Dynamic design allows for high capacity air discharge while preventing premature closure.
  • Lightweight, small dimensions, simple and reliable structure.
  • The discharge outlet enables the connection of a vent hose/pipe.
  • The large size of the automatic air release orifice relative to the air valve body:
    • Discharges air at high flow rates.
    • Lessens the danger of its obstruction by debris.
    • Enables the usage of the rolling seal, making it less sensitive to pressure differential than a direct float seal.
  • The body is made of high-strength UV protected composite materials and all operating parts are made of specially selected, corrosion- resistant materials.
  • Due to its light weight, the valve may be installed on plastic piping systems, as well as other lightweight piping systems.
  • Minimum down-time for maintenance – all operating parts are consolidated into one replaceable cartridge.

Valve Selection

  • Size range: 2” threaded male connections, NPT or BSPT.

Options

  • The D-43 air valve is available in the following options:
    • One-way models
      • D-43-V -With a one-way, out-only attachment, allows air discharge only, prevents air intake (all models).
      • D-43-I -With a vacuum breaker, in-only attachment, allows air intake only, not allowing air discharge
      • D-43-NS -With a non-slam, discharge-throttling attachment, allows full air intake, throttles air discharge
    • Upper Drain Outlet
      • The D-43 upper drain outlet will drain accumulated water when the air valve is under pressure and sealed. This application is required when impure water accumulates above the sealing mechanism and is not permitted to enter the system when vacuum conditions occur.
      • A drain pipe can be attached to the upper drain outlet to direct the water away from the D-43 air valve.
      • As standard, the D-43 air valve comes with the upper drain outlet sealed. Optionally, the D-43 can be ordered with the upper drain outlet open and with or without the attached drain pipe. (The upper drain outlet can also be easily drilled open in the field.)
    • Male Threaded 2" Inlet
      • The D-43 air valve is available with a male threaded 2" inlet adaptor in both BSP and NPT.

Note

For best suitability, it is recommended to send the fluid chemical properties along with the valve request.
Upon ordering, please specify: model, size, working pressure, thread and flange standard and type of liquid.

Animations

עודכן לאחרונה ב: שבת, 09 אוגוסט 2014