Body: GS-C25/A105. Also available in CF8M/F316.
Seat: SS-304. Also PTFE, 420, STL, or SS-316.
Disc: SS-420. Also available in SS-304, STL, or SS-316.
Sizes: DN15 to DN400.
Face-to-face: DIN3202/EN558-2.
Connection: PN16, PN25, and PN40 flanges; EN1092-2.
Double-seal corrugated tube bellows.
Temperature: -196°C to +600°C (other materials).
Visual opening indicator.
Non-rising handwheel and stem.
Thermal insulation bonnet.
Stem, nut, and spindle lubrication device.
High-temperature resistant protective paint.
Handwheel operation.
Designed and manufactured according to EN13709 Standard.
Manufacturing tests according to EN12266 Standard.
Manufacturing according to ANSI standard available.
VFQ design advantages:
- Innovative seal design between bellows and bonnet. The connection between the bellows and bonnet is made with a robust ring, extending durability beyond 10,000 cycles. This protective ring between the bellows and bonnet allows for three sealing points when the valve is fully open: (1) protective ring + disc, (2) bellows, and (3) packing. The protective ring can be metallic or PTFE.
- Extra-long heat-dissipating bonnet.
- Two-piece stem construction, which increases resistance to wear and corrosion.
- 360° rotating disc that prevents impurity deposits and vibration transmission to the shaft.
- Especially suitable for petrochemical, chemical, pharmaceutical, and energy industries.
- Availability of 11 different disc designs depending on the application.
