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CTX Dual Seals
Mechanical Seal for Pumps

Product Description

  • Balanced
  • Cartridge construction
  • Category 1, Type A, Arrangement 1, 2 or 3
  • Dual seals with API Plan 52 / 53 (CTXAPIDAP)
  • Other flush plans available
  • Seal design according API 682 / ISO 21049
  • Shrink-fitted seal faces
  • Single and dual seals
  • Single seal with API Plan 11 and 61 (CTXAPI-SA)
  • Solid seats
  • Version with independent direction of rotation
    available

Details

Item No. Description
1, 9 Seal face
2, 5, 7, 10, 13, 15, 16, 17 O-Ring
3, 11 Spring
4, 12 Seat
6 Shaft sleeve
8 Adapter
14 Driver
18 Housing
19 HSH cap screw
20 Set ring
21 Set screw
22 Assembly fixture
23 hexagon bolt
24 Set screw

Technical Features

  • Accommodates shaft deflections and process
    fluctuations
  • Good heat dissipation
  • Low space requirements
  • Pre-assembled unit, ready to install
  • Springs protected from the product
  • Suitable for pressure reversal

Typical Industrial Applications

  • Chemical industry
  • Light volatile and highly viscous hydrocarbons
  • Low solids content and low abrasive media
  • Media with poor lubrication properties
  • Oil and gas industry
  • Petrochemical industry
  • Toxic and hazardous media
  • Standard pumps
  • Vertical and horizontal ANSI chemical pumps

Standards

API 682 / ISO 21049

Materials

Seal face: Carbon graphite antimony impregnated (A),
Silicon carbide sintered pressureless (Q12)
Seat: Silicon carbide sintered pressureless (Q1)
Secondary seals: FKM (V), FFKM (K), NBR (P), EPDM (E)
Springs: Hastelloy® C-4 (M)* and C-276 (M5)
Metal parts: CrNiMo steel (G)

Performance Capabilities

Sizes: d1 = Upto110 mm (Upto 4.250’’)
other sizes on request
Pressure: p1 = 22 bar (319 PSI)
Temperature: t = -40 °C … 260 °C (-40 °F ...500 °F)
(>220 °C (428 °F) please enquire)
Speed = 23 m/s (75 ft/s)

CTXAPI
 
Standard Cartridge Seals
Mechanical Seals As Per API 682
Split Seals
Engineered Seals For Demanding Applications
Standard Mechanical Seals For Pumps & Compressors
Mechanical Seals For Agitators, Mixers, Kneaders & Reactors
Supply Systems & Components
Gas Lubricated Seals for Pumps & Agitators
API 682 / ISO 21049
Technical Information