Type 59B

Manufacturer: John Crane

General Purpose DIN, Balanced, Multi spring, PTFE Wedge Seal
A DIN seal for general and high pressure duties in the chemical, refinery, petrochemical and pharmaceutical industries. Alternative seat designs and material options are available to suit product and operating conditions of applications. Typically applications of a corrosive nature, cryogenic and high temperature.

• Complies with European Standard EN 12756, formally DIN 24960/L1K, ISO 3069 and API 610 specification for the petrochemical industry.
• A versatile design with multiple material options for the widest range of liquids and temperatures.
• Optimized design with hydraulically balanced seal face gives low face loading at high pressure.
• Maximum face surface exposure to liquid for heat dissipation.
• Multiple S rings ensure even face loading while compensating for acceptable shaft misalignment.

TEMPERATURE LIMITS60°F to 930°F/ 50°C to 400°C

PRESSURE LIMITS900 psi(g)/62 bar(g)

SPEED LIMITS5000fpm/25m/s