Wafer Butterfly Valve
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- NPS 3" to NPS 12"
- Pressure Class
- 200 PSI
- End connection
- Wafer
Standards
- Design & manufacture
- ISO 5211
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
- Disc
- Seat
- Stem
- O-Ring
- Retainer Ring
Dimensions per size(7 sizes)
| Size | F (inch) | G (inch) | H (inch) | I (inch) | J (inch) | K (inch) | L (inch) | M (inch) | N (inch) | O | P (inch) | Q (inch) | R (inch) | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NPS 3" / DN80 | 1.86 | 4.88 | 8.19 | 5.38 | 4 | 3.25 | 0.408 | 4.91 | 3/8 | 6 | 1 | 0.44 | 0.51 | — |
| NPS 4" / DN100 | 2.11 | 6 | 9.88 | 6.88 | 4 | 3.25 | 0.408 | 7.03 | 1/2 | 6 | 1 | 0.44 | 0.63 | — |
| NPS 5" / DN125 | 2.14 | 6 | 11.1 | 8.1 | 4 | 3.25 | 0.408 | 8.44 | 1/2 | 8 | 1 | 0.55 | 0.62 | — |
| NPS 6" / DN150 | 2.2 | 6.5 | 11.75 | 8.75 | 4 | 3.25 | 0.408 | 9.16 | 1/2 | 8 | 1.25 | 0.44 | 0.75 | — |
| NPS 8" / DN200 | 2.4 | 8.2 | 14.5 | 11 | 6 | 5 | 0.533 | 11.72 | 5/8 | 8 | 1.7 | 0.65 | 0.87 | — |
| NPS 10" / DN250 | 2.65 | 9.97 | 18 | 13.38 | 6 | 5 | 0.533 | 13.72 | 5/8 | 8 | 1.8 | 0.56 | 1.14 | — |
| NPS 12" / DN300 | 3.24 | 10.91 | 20.41 | 16.12 | 6 | 5 | 0.533 | 16.62 | 1/2 | 12 | 1.38 | 0.56 | 1.26 | — |
Operating torque(6 sizes)
| Size | 200 PSI (13.8 bar) | 50 PSI (3.4 bar) | ||
|---|---|---|---|---|
| N·m | in·lb | N·m | in·lb | |
| NPS 3" / DN80 | 34 | 300 | 22 | 195 |
| NPS 4" / DN100 | 51 | 450 | 31 | 270 |
| NPS 6" / DN150 | 102 | 900 | 62 | 550 |
| NPS 8" / DN200 | 169 | 1500 | 113 | 1000 |
| NPS 10" / DN250 | 301 | 2660 | 203 | 1800 |
| NPS 12" / DN300 | 508 | 4500 | 395 | 3500 |
Wet opening torque, indicative. Size the actuator with margin and confirm at quotation. Source values in in·lb shown for reference.
Technical drawings(2 pages)
Operating media
Actuation options
Features
- Ten-position lever handle for precise throttling
- One-piece phenolic-backed controlled-torque elastomer seat for tight shut-off
- Split-stem design self-centres the disc around the seat
- External grease fitting for long-term effortless operation
- Gear, pneumatic or electric actuation available
- Disc and seat grades are selected per medium: see the material selection table, since suitability varies by grade
- Maximum working pressure 200 psi across the size range
Description
Resilient-seated wafer butterfly valve for mounting between flanges. One-piece phenolic-backed elastomer seat, split-stem self-centring disc and external grease fitting for smooth long-term operation. Ten-position lever throttling, with gear, pneumatic or electric actuation available. Sizes NPS 3 to 12. Disc and seat material options (aluminium bronze, nickel-plated or nylon-coated ductile iron, 316 stainless or Hastelloy C disc; EPDM, NBR, CSM, PTFE or FKM seat) allow selection for hydrocarbon and oilfield service such as diesel fuel and brine.
Selection notes
This butterfly valve is supplied for wafer installation.
Sizes run NPS 3" to NPS 12", in 200 PSI.
The body is Ductile Iron.
Seat and trim options are EPDM, NBR, CSM and PTFE. The seat, not the body, usually sets the temperature and medium limit, so confirm it against the service before ordering.
Stated service media include acetic acid, brine, carbon dioxide (wet), diesel fuel, cement (dry) and cement (slurry).
It is catalogued for Water & Wastewater, HVAC, Oil & Gas and Industrial Process.
Built to ISO 5211.
Used in
Related guides
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