Series 98: the valve for chemicals and bunker tankers

ERIKS introduces the double eccentric Econ® series 98 butterfly valve. This nodular cast iron butterfly valve is ideally suited for use on chemicals and  bunker tankers.


•  Bores: DN50 to
   DN300 (larger sizes
   on request)
•  Materials:
   - Body: standard
     GGG40 in
     accordance with    
     EN 1563
   - Disc: stainless steel, ASTM A351CF8M
   - Stem: stainless steel 316
   - Seals: PTFE
  •  Installation dimensions: in accordance with
   EN558 series 20
•  Equipped with an ISO 5211 top flange
•  Bi-directional
•  Guaranteed 100% sealing
•  Supplied as standard with a 3.1 certificate


•  Econ® label: excellent price/quality ratio
•  Maintenance-free
•  Easy replacement of the seating thanks to
   locking ring with bayonet closure
•  Internally and externally phosphated:
   extremely corrosion resistant material
•  Supplied with external coating (≥ 100 Mu) in
   RAL 5015
Double eccentric butterfly valves owe their name to the position of the valve blade with respect to the spindle/stem. In the figure above this is shown by the green line. The centre point of the valve blade is located in front of and next to the centre point of the spindle. This is also called a double offset. Both the term ‘double offset’ and ‘double eccentric’ are therefore used for this valve.

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