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EKN Double Eccentric Butterfly Valve

EKN Double Eccentric Butterfly Valve
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EKN Double Eccentric Butterfly Valve

Features:
- Resilient seated in accordance with EN 593
- Face-to-face length acc. to EN 558-1, basic series 14 (DIN 3202, F4)
- With flange ends on both sides acc. to EN 1092-2
- Double-offset disk bearing mounted in maintenance-free bushing
- Medium free bearing (dry shaft) in body by means of double O-ring sealing and closed disk eyes
- Wear-resistant, corrosion-resistant and undermining-resistant seat
- Possible to replace profile sealing ring without disassembling the disk
- Automatic sealing system with enclosed and pressure-supported profile sealing ring
- Vacuum tight up to 1 Torr
- Tight in both flow directions (see note for excepted sizes)
- Blow-out proof shaft and shaft sealing
- With self-locking, fully enclosed, maintenance-free worm gear including mechanical position indicator

Materials:
- Body: Ductile cast iron EN-JS 1030 (GGG-40)
- Disk: Ductile cast iron EN-JS 1030 (GGG-40)
- Valve sealing: EPDM
- O-rings: EPDM
- Butterfly valve stem: Stainless steel 1.4021
- Shaft bearing: Zincfree bronze
- Seat: Chrome-nickel overlay welded, microfinished

Corrosion protection:
- Body: Inside and outside epoxy coating acc. to GSK guidelines
- Disk: Epoxy coating according to GSK guidelines

Versions:
- Standard version as described
- With handwheel
- With electric actuator
- With pneumatic actuator
- With hydraulic actuator
- Special designs and bigger sizes available on request
- With ceramic coating
- With mechanical blocking of the disk (UVV locking)