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Model ParaSeal Butterfly Valve
Brand: KeystoneThe ParaSeal range features a proven disc, shaft and seat arrangement designed for use in high pressure and high velocity applications.
Features- Available in wafer, lugged and double flanged
- One piece body design acc. ISO 5752 series 20 (DIN 3202 K1)
- Suitable for severe vacuum and up to 25 bar bubble tight shut off
- The field replaceable seat fully isolates the body and shaft from the media
- Bed grooved seat construction for tight shut off at full rated pressure, also for end of line service
- Suitable for Bördel and slip-on flanges
- A molded-in O-ring in the seat face for flange sealing. No flange gaskets required
- Lenticular shaped disc to improve flow capacity
- Splined, squared or key shaped disc/shaft connection
- Dry shaft design
- PTFE lined bearings to minimize friction
- Actuator flange acc. ISO 5211
Specifications
Brand
Approvals & Certifications
- PED
- DVWG
Body Design
- Short Pattern
End Connection
- Lugged
- Wafer
- Flanged
Material
- EPDM Rubber, Duplex, Ductile Iron, Cast Iron, Carbon Steel, Buna-N, Bronze, 316L Stainless Steel, 316 Stainless Steel, 304 Stainless Steel, Aluminum Bronze
Media
- Inert Gas
- Water
- Air
Operating Temperature
- Less than 200° C
Pressure Class
- ASME , PN
Process Connection Type
- 125 FF, 150 RF, 150 FF
Seat / Seal Type
- Resilient
Shutoff Class
- Zero Leakage
Stem
- O-Ring
Valve Size
- NPS 6 / DN 150, NPS 4 / DN 100, NPS 3 / DN 80, NPS 24 / DN 600, NPS 2-1/2 / DN 65, NPS 20 / DN 500, NPS 2 / DN 50, NPS 18 / DN 450, NPS 16 / DN 400, NPS 14 / DN 350, NPS 12 / DN 300
Valve Size Standard
- NPS, DN
Valve Type
- Butterfly