Mechanical seal Aura

Technical Data Mechanical seal ISaura

Temperature: -50°C to 200°C/-58°F to 392°F
Static pressure: up to 250 bar/3,625 psi
Speed: up to 140 m/s /459 ft/s at balance diameter
Size limits: shaft sizes up to 230 mm/9.125”, corresponding to seal sizes up to 307.9 mm/12.125”

Brand

KSB

Performance Capabilities isaura

Seal

Shaft size

bore size

Pressure Limits

Speed

Temperature Limits

Aura
220

70 mm to 230 mm/

2.75” to 9.125”

161 mm to 371 mm/

6.37“ to 14.60”

Static: to 250 bar/3,625 psi

Dynamic: to 250 bar/3,625 psi

140 ms-1

459 ft/s

-50°C to 200°C

-58°F to 392°F

Aura
120NS

73 mm to 155 mm/

2.87” to 6.10”

140 mm to 223 mm/

5.50“ to 8.78”

Static: to 120 bar/1,740 psi

Dynamic: to 100 bar/1,450 psi

100 ms-1

328 ft/s

-50°C to 200°C

-58°F to 392°F

Technical Description

Technical Description Mechanical seal ISaura

iseal isaura dry gas seals are designed to reduce seal-operating and
transaction costs by implementing a common design approach across
the range and delivering extended maintenance intervals. The new isaura
120NS provides solutions for compressor applications with small crosssection
cavities.
• Wider performance envelope, including bidirectional operation
• Increased reliability for extended maintenance intervals
• Improved design for simpler serviceability

Applications

Design Seal Isaura

ISaura 220: Silicon carbide rotating and stationary sealing faces, springenergized-
polymer secondary sealing for high-pressure duties
to 250 bar static pressure
ISaura 120NS: Silicon carbide rotating and stationary sealing faces,
spring-energized-polymer secondary sealing. This latest design delivers
up to 120 bar static pressure with 42% reduced radial cross section and
25% reduced axial length to fit smaller compressor seal cavities.

Benefits

ISaura reduces operational and transactional costs using a patented polymeric sealing device. isaura reduces leakage rates by up to 15 percent, lowering the total cost of operation while protecting the environment. An enhanced rotor design extends scheduled maintenance periods, and the optional bi-directional capability reduces the need for an extensive spares inventory.

isaura provides the ultimate reliable operation in temperatures ranging from -58°F to 392°F/ -50°C to 200°C and pressures up to 3625 psi (g)/250 bar (g).

With isaura, operators gain access to localized technical expertise from the largest global service network in the industry with over 300 service engineers located worldwide. Technical support and troubleshooting from service and reliability experts is available on the widest range of applications in the industry.