CASCADE PLC - The new home of Cascade Clamps UK Ltd, Suppliers and Manufacturers of pipe fittings to the water & gas industry.
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​EAK DOUBLE-ECCENTRIC BUTTERFLY VALVE


The tried and tested butterfly valve for large nominal sizes and pressure ratings...

The ERHARD EAK range of butterfly valves come in nominal sizes between DN700 and 3600 and pressure ratings from PN10 to PN40, to suit a wide range of applications.
Proven details ensure reliable quality and a high degree of cost-effectiveness:
  • Drive shaft and bearing pin are supported in maintenance-free, self-lubricating plain bearings and hence are highly resilient.
  • Connection between drive shaft and valve disc with proved and robust key connection for force transmission without play, even under the highest of stresses. 
  • Main seal through profile ring that is clamped onto the valve disc and fixed with a clamping ring.
  • Double-eccentrically supported valve disc with optimised flow performance. 
  • Sliding crank mechanism with optimal movement kinematics which is almost exactly corresponding to the valve’s characteristic curve (from DN800 spindle gear up).
Technical Specifications
​DN700 - 3600
PN6 - 40 
Body: EN-JS1030 
Coating: Epoxy, Enamel, Rubber lining, Epoxy-Polymer-Ceramic (EPC)
Tried and tested technology for nominal widths between DN700 and DN3600, variants with weight-loaded hydraulic actuator available.
​Drinking water certificate.
Click the cog below for downloadable TechSpec. ​
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  • Home
  • Bauer
  • Our products
    • Tapping and Tapping Saddles >
      • Q-Tee Tapping Saddle
      • Slimline Q-Tee
      • Hot Tapping Saddle (HTS)
      • Universal Bossed Tapping Saddle
      • Bossed Repair Clamps
      • Copper and Galv Tapping Clamps
      • Cascade PE/PVC Pipe Saddles
    • Certification and Downloads
    • Cascade Pipe Drilling & Linestopping >
      • Drilling System
      • ProDrill 45
      • ProDrill 20
      • ProDrill 26
    • Under Pressure Tee's >
      • Stainless Steel Under Pressure Tees
      • Mild Steel Tees/Hot Tap Tees
      • PE/PVC UPT's
    • Repair Clamps >
      • Stainless Steel Repair Clamps
      • Copper and Galv/Steel Repair Clamps
      • Lead Joint Repair Collar
      • PE Pipe Clamp/Coupling
      • Mini Repair Clamps
    • Couplings and Flange Adaptors >
      • Studded Flange Converters (DSC)
      • Universal Wide Couplings and Flange Adaptors
      • SupaFit Range
      • Cascade Valve Bypass/Washout Adaptor
    • End Restraint Fittings >
      • WAGA Flange Adaptors
      • WAGA Couplings
      • WAGA End Loading Fittings
      • SupaTite Range
      • P-Fix Range
      • Tied Restraint Flange Adaptors
    • Valves >
      • Telescopic Valve Spindles
      • QT-I Complete Isolation Valve
      • Ball Valves
      • Resilient Seat Gate Valve
      • Metal Seated Gate Valves
      • Standard Butterfly Valves
      • Large Butterfly Valves
      • Needle Valve
      • Flow Control Valve
      • EDRV Nozzle Check Valve
      • ERK Tilting Disk Check Valve
      • IPROCheck Axial Check Valve
      • EAK Butterfly Valve
      • Twin Air Three Functions Air Valve
      • Fire Hydrant (Fixed Stopper)
      • Hydrant type 2 (white cap) loose stopper
      • Sentry-GS-Excess-Flow-Valve
      • Sentry-GT-Thermal-Shutoff-Devices
    • Water Metering >
      • Talbot Meter Carrier
    • Meter Boxes
    • Chambers, Sections and Lids
    • Pipe and Fittings >
      • PE Fittings >
        • CasPlas PE Compression Fittings
        • Talbot Push Fit Fittings
        • Electrofusion Fittings
        • Amagrip Pushfit End Restraint
      • ProFuse Water Pipe
      • PE100 Black Potable Water Pipe
      • PE100 Water Pipe
      • PE80 Water Pipe
      • CleanPipe System
      • Barrier Pipe
      • ProFuse Gas Pipe
      • PE100 Gas Pipe
      • PE80 Gas Pipe
      • ServIFlex
      • 17.5mm gas pipe relining system
      • PE Stub Flanges
    • Dismantling Joint
    • Ductile Fittings
    • Gunmetal Ferrules
    • Plumbing and Ancillaries >
      • Isiflo
      • Nipples and Bushes
      • Cutters
      • Ratchet Spanners
      • Denso
      • Cascade Silicon Pipe Grease
      • AquaFix Wrap Repair Tape
      • Bolt & Gasket Sets
    • Heating
    • Specialist Fabrication >
      • Mild Steel Fabrication
      • Stainless Steel Fabrications
      • Ductile Fabrication
      • Fabricated-Adaptors-&-Couplings
  • About
    • Cascade Terms and Conditions
    • Privacy Statement
    • GDPR Policy
  • Services
    • Utility Products
    • Self Lay and Developer
  • Cascade Brochure
  • Contact Cascade
  • Cascade Online Shop