Manufacturer: Eagle Industry Co., Ltd.
Model: LL9DTUE

Features

Mechanical seals for pumps
Pusher seals

• API 682 Category 2 and 3, Type A, Arrangement 2 seal
• Dual seal in face-to-back arrangement
• Dry contact outer seal (containment seal)
• Balanced
• Cartridge unit
• Solid seal faces

Specification

Standards and approvals

• API 682 / ISO 21049

Materials

• Seal ring (primary seal): Blister resistant carbon, Silicon carbide SSiC (Q1), RBSiC (Q2)
• Seal ring (secondary seal): Special carbon
• Mating ring: Silicon carbide SSiC (Q1), RBSiC (Q2)
• Secondary seals: FKM (V), FFKM (K), EPDM (E), NBR (P)
• Springs: Hastelloy® C-276 (M5)
• Metal parts: CrNiMo steel 316 (G)

Operating range

• Pressure (primary Seal): p = vacuum … 42 bar (… 609 PSI)
• Pressure (secondary seal): p = 2.75 bar (40 PSI) normal operation, max. 60 bar (870 PSI) in wet operation
• Temperature: -40 °C … +176 °C (-40 °F … +349 °F)*
• Sliding velocity: … 23 m/s (… 75 ft/s)
• Viscosity: … 300 mPas
• Solids content: … 0.5 wt.%
• * Engineered up to 260 °C (500 °F) with FFKM (K) secondary seals

Recommended applications

• Refining technology
• Oil and gas industry
• Petrochemical industry
• Chemical industry
• Power plant technology
• Light volatile hydrocarbons
• LPG plants API 610 / ISO 13709 pumps
• Process pumps

Recommended piping plans

• Process side: 02, 11, 12, 13, 14, 21, 22, 23, 31, 32, 41
• Between seals: 71, 72, 75, 76