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NAF-ProCap, Capping valve for automated filling of wood chips to the batch digester in pulp industries. 

The design provides a reliable and tight shutoff valve with long life time, supplied as standard in stainless steel for pressure ratings PN 16-25 and ANSI Class 150 and in sizes DN 500 and 600, 20” and 24”
Features
  • A unique design using the eccentric hubs to load the seat and provide a tight shutoff
  • An inlet neck that is drilled and tapped to accept direct mounting of the chip chute
  • A lower flange in standard dimension or customized to meet existing digester flange
  • A stainless steel ball segment with welded overlay of Alloy 21 in the seat area
  • Has sealed stems with O-rings in PFM that prevent build up and results in an increased life time
  • NAF-Turnex high performance pneumatic actuators used for operation and eccentric hub
  • Locking device, cylinders in stainless steel with spring to lock the valve for safe operation

1 - 1 of 1 Part Numbers
NAF-PROCAP
NAF-PROCAP
  • Body Material - ASTM A351, CF8M - Cast 316 Stainless Steel
  • Pressure Rating - PN 16
  • Stem Seal Material - PFM
  • Seat Rings / Seals - Alloy 21/ PFM
  • Size Inlet / Outlet - DIN-Version
  • DN in mm - DIN-Version - 500 / 700
1 - 1 of 1 Part Numbers

Specifications

Approvals & Certifications

  • CE-Marked According to PED 97/23/EG, Module H, Category III

Approvals & Certifications

  • Test Pressure Open Valve - API 598

Ball Material

  • Sector: 316 Stainless Steel - ASTM A351 CF8M, 1.4408
  • Sector: Alloy 21 - Stellite

Bearing Material

  • Stem: Metaloplast

Cover Material

  • 316 Stainless Steel (1.4436)

Enclosure, Body Material

  • 316 Stainless Steel - ASTM A351 CF8M, 1.4408

Flange Size - 20” (DN 500)

  • 20” (DN 500) - 150# ANSI
  • 20” (DN 500) - PN 16

Flange Size - 24” (DN 600)

  • 24” (DN 600) - 150# ANSI
  • 24” (DN 600) - PN 16

Flange Size - 28” (DN 700)

  • 28” (DN 700) - 150# ANSI
  • 28” (DN 700) - PN 16

Flange Size - 32” (DN 800)

  • 32” (DN 800) - 150# ANSI
  • 32” (DN 800) - PN 16

Gasket Material

  • Graphite

Materials of Construction

  • Box: ABS Plastic
  • Cylinder, Thread Insert, Key: Stainless Steel
  • Distance Block, Lid, Actuator Plate, Jammer Plate: 316 Stainless Steel (1.4436)
  • Eccentric Hub Bearing, Washer: Metaloplast
  • Limit Switch, Terminal Block: Plastic (PBA), Plastic (Gemin)
  • Lock Segment, Pin, Pin Washer, Cylinder Pin, Piston, Lock Segment, Hub: 329 Stainless Steel (1.4460)
  • Plate, Washer, Mounting Plate, Holder Plate, Rod Bulb: 304 Stainless Steel, 1.4301
  • Silencer: Brass

Media

  • Test: Gas

O-Ring Material

  • PFM

Ring Material

  • Seal: PTFE
  • Seat/Clamp: 316 Stainless Steel - ASTM A351 CF8M, 1.4408
  • Seat: Alloy 21 (Stellite)

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