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APItex
APItex

Features
  • Single and dual seals
  • Cartridge
  • Seal design according API 682 / ISO 21049
  • Category 1, Type A, Arrangement 1, 2 or 3
  • Balanced
  • Version with independent direction of rotation available
  • Shrink-fitted seal faces
  • Solid seats
  • Single seal with API Plan 11 and 61 (Apitex-SA)
  • Dual seals with API Plan 52 / 53 (Apitex-DAP)
  • Other flush plans available
Advantages
  • Suitable for pressure reversal
  • Insensitive to shaft deflections and process fluctuations
  • Cover distortion cannot cause seat misalignment
  • Good heat dissipation
  • No external pump necessary
  • Pre-assembled unit, ready to install
  • Low space requirements
  • Security due to proofed design
  • Springs protected from the product
Recommended applications
  • Chemical industry
  • Petrochemical industry
  • Oil and gas industry
  • Light volatile and highly viscous hydrocarbons
  • Toxic and hazardous media
  • Media with poor lubrication properties
  • Low solids content and low abrasive media
  • Vertical and horizontal ANSI chemical standard pumps
Item 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
Operating range
Shaft diameter: d1 = 20 … 110 mm (0.750" … 4.300"),
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 inquire)
Sliding velocity: vg = 23 m/s (75 ft/s)

Standards and approvals
  • 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)
* EagleBurgmann standard