Product characteristics and benefits

• Resilient seated in accordance with EN 12334
• Face-to-face length acc. to EN 558-1, basic series 48 (DIN 3202, F6)
• With flange ends on both sides acc. to EN 1092-2
• With lever and weight (located on the right in flow direction)
• Lever and weight useable for position indicator
• Connection between shaft and disk by key
• For horizontal pipelines
• With large access bonnet for easy maintenance

Materials

• Body: Ductile cast iron EN-JS 1030 (GGG-40)
• Bonnet: Ductile cast iron EN-JS 1030 (GGG-40)
• Check valve disk: Ductile cast iron EN-JS 1030 (GGG-40)
• Bonnet bolts: Stainless steel A4 (DIN EN ISO 3506)
• Check valve shaft: Stainless steel 1.4057
• Seat: Zincfree bronze (waste-water resistant)
• Check valve disk seal: NBR
• Shaft bushing: O-rings made of NBR (resistant to waste water)

Corrosion protection

• Inside and outside epoxy coating

Versions

• Standard version as described
• With mounted wire guard of stainless steel 1.4571