Tilting Type Check Valve

Features

  • Double flange and double eccentricity design,
  • A lighter weigh due to ductile iron casting,
  • Maintenance free long life cycle,
  • Loss of low pressure,
  • 100% sealing with either natural rubber gasket or metal to metal,
  • Adjustable counter weight and lever,
  • Hydraulic damper with an adjustable shutdown speed (70% + 30%) (optional),
  • Silent shutdown with hydraulic damper,
  • Vertical or horizontal assembling possibility.

 

Applied Standards

Design EN 12334
Face to face dimensions EN 558-1 Series 14 (DIN 3202 F4)
Flange Dimensions EN 1092-2
ISO 7005-2
BS 4504
DIN 2501
Coating DIN 30677
Test EN 12266-1 & -2
EN 1074-1 & -3

 

Pressure Classes and Diameters

PN10 - PN16 DN150 - DN2500 mm
PN25 DN150 - DN1600 mm

 

Test Pressures (according to EN 12266)

  PN10 PN16 PN25
Seat (bar) 11 18 27,5
Body (bar) 17 25 37,5

 

Materials

Body DI casting, GJS-400.15 / GJS-500.7, EN 1563 (GGG40 – 50, DIN 1693)
Obturator DI casting, GJS-400.15 / GJS-500.7, EN 1563 (GGG40 – 50, DIN 1693),
AISI 304-316 (optional)
Shaft Stainless steel, 1.4021 (X20Cr13)
AISI304 – 316 (optional)
Bearing Bronze, GBzSnPb4
Teflon (optional)
Sealing Surface Stainless steel fillet weld with precision machining, AISI 316L (for metal to metal)
Gasket Natural rubber, EPDM or NBR
Seal Clamp Ring DI casting, GJS-400.15 / GJS-500.7, EN 1563 (GGG40 – 50, DIN 1693)
Stainless steel casting, AISI 304-316 (optional)
Bolts & Nuts Galvanized steel, quality 8.8
Stainless steel, quality A2 (optional)
Lever & Counter Weight DI casting, GJS-400.15 / GJS-500.7, EN 1563 (GGG40 – 50, DIN 1693)
Internal-External Coating Blue electrostatic epoxy powder coating RAL 5010, other RAL colors (optional)

 

Closing Types:

  • Design without lever (up to DN300),
  • Adjustable counter weight and lever,
  • Hydraulic damper.