Butterfly Valves Flanged Type
Butterfly Valves Flanged Type - Image 2
Butterfly Valves Flanged Type - Image 3

Butterfly Valves Flanged Type

  • Application: Can be used in distribution networks, fire networks, water transmission, agriculture, water treatment plants, dams and power plants up to 50 degrees Celsius.
  • Fluid type: Raw water, drinking water
  • DN: 100 to 2000 mm
  • PN: 10 to 25 bar
  • Standards:
    • EN BS 5155
    • EN 558 – Series 14,
    • EN 1092-2
    • EN 12266
Category:

Description

Product material:

  • Body and disc: Ductile iron EN 1563/EN-GJS-400-15
  • Shaft material: Stainless steel DIN EN 10088-3, 1.4021
  • Rubber material: EPDM, NBR
  • Nominal pressure: PN10-PN16-PN25

Design & Produce Technical Specifications

  • Production standard: DIN EN 593 (DIN 335), INSO 4841
  • Flange drilling and dimension standard: DIN 1092-2 (DIN EN 2501)
  • Valve face-to-face standard: DIN 3202-F4 (DIN EN 558-1 series 14)
  • Paint coating: All cast iron parts are coated with blue epoxy powder paint RAL5005 or RAL5015 with a minimum thickness of 250 microns and with an electrostatic spraying mechanism, in accordance with DIN 30667 standard.

 

Final inspection test according to DIN EN 12266-1 and ISO 5208

 

Pressure drop coefficient in butterfly valves when the valve is fully open

 

Features

  • Disc eccentric bearing in the body
  • The suitability of the disk shape and form for current flow
  • Sealing from both sides
  • Ability to replace and adjust the sealing rubber when the valve is closed.
  • As the impeller rotates clockwise, the valve closes ninety degrees.
  • The design of flanged butterfly valves is double eccentric.

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