Product characteristics and benefits

• Resilient seated
• With flange end acc. to EN 1092-2
• Single chamber air valve in compact design
• Very high discharge capacity up to sonic velocity due to stabilised floater
• Triple function air valve
• Venting function:
  • Large orifice to vent high quantities of air during draining the pipeline
  • Large orifice to release high quantities of air during filling the pipeline
  • Small orifice to release low quantities of air during operation under pressure
• Outlet female threaded acc. to DIN ISO 228
• Minimum operation pressure: 0.3 bar
• With sidewise drainage plug

Materials

• Body: Ductile cast iron EN-JS 1030 (GGG-40)
• Bonnet: Ductile cast iron EN-JS 1030 (GGG-40)
• Bonnet bolts: Stainless steel A4 (DIN EN ISO 3506)
• Inner parts: Stainless steel 1.4571
• Float: Stainless steel 1.4571 (exception: DN 50 synthetic)
• Sealing: EPDM

Corrosion protection

• Inside and outside epoxy coating acc. to GSK guidelines

Versions

• Standard version as described
• For pressures of 0.1...1 bar special seal (with special sealing). Please specify operating pressure when inquiring/ordering.
• For flange dimensions acc. to ANSI
• With insect protection
• DN 50/PN 16 connection with 2" thread available on request