TECHNIQUIP

Check valve with lever and weight plus hydraulic adjustable damper, type 4010HD

Check valve with lever and weight plus hydraulic adjustable damper, type 4010HD

Type 4010HD 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 adjustable two speed dashpot slows down the opening and closing of the disc in order to prevent water hammer. The valve is equipped with a disc position indicator

Hardware

Soft sealing non-return valve with lever and weight plus adjustable hydraulic damper
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
  • Hydraulic damper with two speed dashpot
  • 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

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