Product characteristics and benefits

• Resilient seated in accordance with EN 593
• Face-to-face length acc. to EN 558-1, basic series 20 (DIN 3202 / K1)
• Wafer-type for flanges acc. to EN 1092-2
• Centric disk, mounted in three maintenance-free bearing bushes
• For installation between pipe flanges
• 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
• With double-acting VAG PAsec Pneumatic Actuator including solenoid valve (5/2-way) and limit switch box with Open/Closed position indicator

Materials

• Body: Ductile cast iron EN-JS 1030 (GGG-40)
• Disk: Ductile cast iron EN-JS 1030 (GGG-40)
• Shaft end: Stainless steel 1.4021
• Collar: EPDM (water)

Corrosion protection

• Inside and outside epoxy coating
• Disk: Epoxy coating

Versions

• Standard version as described
• With Positioner
• Disk made of stainless steel 1.4408
• Collar of NBR (waste water)