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Product features and benefits
- Resilient seated in accordance with EN 593
- Face-to-face length acc. to EN 558-1, basic series 20 (DIN 3202 / K1)
- Lug-type for flanges acc. to EN 1092-2
- Centric disk, mounted in three maintenance-free bearing bushes
- For bolting between pipe flanges
- As end-of-line valve for flange connection to pipeline flanges. Operation only permissible with suitable counter-flange.
- DN 50-300: 16 bar
- DN 350-400: 14 bar
- DN 450-600: 10 bar
- Replaceable rubber sleeve with integrated seal for functionally reliable use for flared flanges, welding flanges, PE flanges as well as loose flanges with V-collar
- Stable sealing seat due to collar with vulcanized support ring
- Vacuum tight up to 1 Torr
- Tight in both flow directions
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Material
- Body: Ductile iron EN-GJS-400-15 (GGG-40)
- Shaft end: Stainless steel 1.4021
- Collar: EPDM
- Disc: Ductile cast iron EN-GJS-400-15 (GGG-40) / Stainless steel 1.4408
Corrosion protection
- Body: Inside and outside epoxy coating
Version
- With electric actuator
- With notched hand lever
- With pneumatic actuator
- With worm gear unit and handwheel
- Bigger sizes available on request
- Optimised version for low working pressure 5 bar available
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