G57, G58 and G58I are high-purity, high-strength interlace braided flexible graphite packings designed to handle a wide range of fluids. These packings feature superior chemical compatibility. They have self-lubricating and heat-dissipating properties, making them ideal for use where fast break-in and reduced shaft/sleeve wear are concerns.
These unique packings have proven to be excellent for leakage control, while being resilient and dimensionally stable, leading to longer packing life. They are highly recommended for steam valve service and process applications.
Oxidizing: -400°F to 850°F/-240°C to 455°C
Functional steam: 1200°F/650°C
G58 pump: 400 psi(g)/27.5 bar(g)
Valve: 4,300 psi(g)/296 bar(g)
For high-speed applications, contact your John Crane Sales/Service Engineer.
(G58I not recommended for rotary service.)
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