Description
The K-020 Air & Vacuum Valve discharges air during the filling or charging of the system, and admits air to the system during system drainage.
The valve is specially designed to operate with liquids carrying solid particles such as sewage and effluent.
The valve's unique design guarantees complete separation of the liquid from the sealing mechanism and provides optimum work conditions.

Main Features
• Working pressure range: 3 - 250 psi. Testing Pressure : 360 psi
• The valve's unique design prevents any contact between sewage and the sealing mechanism by creating an air gap at the top of the valve. This air gap is guaranteed even under extreme conditions.
Those features are achieved by:
• The conical body shape designed to maintain the maximum distance between the liquid and the Sealing Mechanism; so as to obtain minimum body length.
• Spring loaded joint between the stem and the upper float.
• Vibrations of the lower float will not unseal the automatic valve.
• Release of air will occur only after enough air accumulates.
• The valve design, float Mechanism is less sensitive to pressure differentials than a direct float seal. It Accomplishes a comparably large orifice for a wide pressure range (up to 360 bar).
• Funnel-shaped lower body is designed to ensure that residue sewage matter will sink to the system and be carried away and will not remain in the valve.
• Flushing is possible while the valve is under pressure, by opening the ball valve in the valve's lower part.
• All inner metal parts made of stainless steel SAE 316.
• Oven-baked Epoxy coating or Body made of Stainless Steel.
• Maximum working temperature 203° f.

Valve Selection
• These valves are available with 3"and 4" ANSI flanges.
• A.R.I Valves can be adapted to various types of liquid by coating with Enamel or Vulcanized coating upon request.
• These valves are also available with a stainless steel body.

Ordering
Upon ordering, please specify: model, size, working pressure, threads/flanges standard and type of liquid.

More information:

Data sheet (400 KB)

 

 

K-020 - AIR & VACUUM VALVE FOR SEWAGE