Project Description

NUY SINGLE SEALS

  • NUY SINGLE SEALS
  • NUY SINGLE SEALS
  • NUY SINGLE SEALS
  • NUY SINGLE SEALS
  • NUY SINGLE SEALS
Item No.Description
1Bellows unit
2, 5, 7O-Ring
3, 11Set screw
4Seat
6Shaft sleeve
8Cover
9Lip seal (-QN) or throttle ring (-TN)
10Drive collar
12Retaining ring
13Assembly fixture
14HSH Cap Screw
15Gasket
  • Ideal for use in process pump
    standardization
  • Dimensional modification of the stuffing
    box chamber is not required due to
    short radial installation height
  • Ideal to convert and retrofit pumps with
    packings and large volume OEM
    production
  • Cartridge unit factory assembled for
    easy installation, which reduces downtime
  • Rugged design for long operating life
  • Bellows design efficiently ensure selfcleaning
  • Suitable for high temperature
    applications
  • Refining technology
  • Petrochemical industry
  • Hot media
  • Cold media
  • Highly viscous media
  • Pumps
  • Special rotating equipment
  • Seal face: Carbon graphite antimony
    impregnated (A), Silicon carbide (Q1)
  • Seat: Silicon carbide (Q1)
  • Secondary seals: FKM (V), EPDM (E), FFKM (K)
  • Bellows: Inconel® 718 (M6)
  • Metal parts: CrNiMo steel (G), Duplex (G1)
  • Throttle ring: PTFE carbon graphite reinforced (T12)
  • Lip seal: NBR (P), PTFE carbon reinforced (T3)
  • Shaft diameter: d1 = 25 … 80 mm (1″ … 3.15″)
  • Temperature:
    t* = -40 °C … +220 °C (-40 °F … +428 °F)
  • Pressure: p = 25 bar (363 PSI)
  • * Operating limits of O-Rings to be observed
  • Single seal configuration
  • Balanced design
  • Independent of direction of rotation
  • Cartridge construction
  • Metal bellows design
  • Single seal with quench and lip seal
    (-QN) or throttle ring (-TN)
  • Connections for flush and quench
    available
  • Multipoint injection ring design for
    (-QNM, -TNM)