Check valve with lever and weight, type 4010

Type 4010 is a double flanged and double eccentric valve used as a check valve that permits medium flow in only one direction and prevents the flow from reversing. The flow opens the valve in the desired direction, while back flow forces the valve to close. Full tightness is ensured by an elastomer-to-metal design. The valve is equipped with a disc position indicator. The operation is by means of a lever counter weight.



Soft sealing non-return valve with lever and weight
Drinking, tap and wastewater up to 50°C
DN150 – 2000, PN10 – 16
Face-to-face length DIN EN 558-1, basic series 14 (DIN 3202, F4)

General information

  • Double offset bearing of the disk in the body in maintenance-free bushes
  • Medium-free bearing by triple O-ring seal and closed bearing lugs at the disc
  • Wear-resistant, corrosion-resistant and infiltration-proof seat
  • Anti-blowout shaft and shaft seal
  • With lever and weight
  • Tightness according to DIN EN 12266-1, leak-rate A
  • Tight in both flow directions acc. to EN 1074-2
  • Flange connection dimensions to EN 1092
  • Body: ductile cast iron GGG40
  • Disc: ductile cast iron GGG40
  • Body seat: NiCr stainless steel welded overlay finish, micro finished
  • Disc seal: EPDM
  • Valve shaft: stainless steel 1.4021
  • Bolts in contact with the medium: stainless steel 1.4301
  • Shaft bearings: maintenance-free zinc-free bronze
  • Certificate: EN 10204 3.1

Corrosion protection

  • Body: inside and outside epoxy coated, coating thickness >250 µm, blue RAL 5010
  • Disc: epoxy coated

Additional information


Operating pressure

PN10, PN16, PN25

Flange connection

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Top flange


EN 19

Face to face length

EN 558-1/14

Test standard

EN 12266-1


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Datasheets (PDF)

Type 4010-4010HD check valve datasheet
Type 4010 check valve manual
Type 4010 check valve tender text