Images are representations only.
DEMCO NF-C Butterfly Valve
Brand: Cameron
Acclaimed as one of the most durable of all resilient-seated butterfly valves in the industry, this valve excels in a wide variety of applications.
Cast in both wafer and tapped-lug patterns in a wide variety of material choices, DEMCO butterfly valve features a one-piece body for reduced weight and increased strength.
The unique stem-hole design in the disc ensures a dry stem journal, and the hard-backed seat allows ease of installation, reliable operation, and is field-replaceable without special tools.
The DEMCO butterfly valve is available in sizes 2" through 36" (50 mm through 900 mm).
Engineered for long-term, maintenance-free performance, the DEMCO butterfly valve is commonly selected for a variety of applications spanning a wide range of industries.
Features- Bi-directional sealing
- Integral flange seal
- ASME class 150 rating
- Multiple pressure ratings
Specifications
Brand
Approvals & Certifications
- MSS-SP-25
- MSS-SP-44
Approvals & Certifications
- ABS
Bearing Material
- Bronze - Upper & Lower Bearing, Thrust Collar
Cap Material
- Ductile Iron
Disc Material
- 316 Stainless Steel
- Aluminum Bronze
- Monel
- Nickel-Plated Iron
- PVF-Coated Ductile Iron
Enclosure, Body Details
- Lug
- Wafer
Enclosure, Body Material
- Aluminum Bronze (Lug)
- Cast Iron (Wafer)
- Ductile Iron (Wafer or Lug)
- Stainless Steel (Lug)
- Steel (Lug)
Flange Size - 14” (DN 350)
- 14” (DN 350) - 150# ASME
Flange Size - 16” (DN 400)
- 16” (DN 400) - 150# ASME
Flange Size - 18” (DN 450)
- 18” (DN 450) - 150# ASME
Flange Size - 20” (DN 500)
- 20” (DN 500) - 150# ASME
Flange Size - 24” (DN 600)
- 24” (DN 600) - 150# ASME
Flange Size - 30” (DN 750)
- 30” (DN 750) - 150# ASME
Flange Size - 36” (DN 900)
- 36” (DN 900) - 150# ASME
Flow Rate
- 500 to 70,000 Cv
Materials of Construction
- Retainer (Spacer), Key: Stainless Steel
- Spacer: Steel
O-Ring Material
- Buna-N - Top, Stem
Operating Temperature
- -34° to 204° C (-30° to 300° F)
Pressure Range
- psi: 0 to 150 (kPa: 0 to 1,000, bar: 0 to 10)
Process Connection Style
- Lug
- Wafer
Screw Material
- 18-8 Stainless Steel - Disc, Set Screw
- Carbon Steel - Lock Washer
Seat / Seal Material
- Seat Elastomer: Black Neoprene
- Seat Elastomer: Buna-N
- Seat Elastomer: EPDM
- Seat Elastomer: FKM
- Seat Elastomer: Hypalon
Spring Material
- Spring Pin: Stainless Steel
Stem Material
- 316 Stainless Steel
- 416 Stainless Steel
- Monel
Torque
- 1,660 to 67,500 In/Lbs
Valve Size
- 14” to 36” (350 to 900 mm)
- Chemical and Petrochemical
- Agriculture
- Oil and Gas Drilling and Production
- Food and Beverage
- Water and Waste Water
- Cooling Towers (HVAC)
- Power
- Mining and Materials
- Dry Bulk Handling
- Marine and Government
