John Crane styles 1625G, 1626, 1635G, and N1635 are the ultimate in packing, offering the ability to perform in both high temperatures and a full range of chemical services. These packings meet the demands of today’s highperformance requirements. Constructed of the highestquality, continuous filament graphite fibers, provide superior sealability and heat dissipation with minimal flush.

Highly lubricous, these densely braided products offer reduced process contamination and ease of start-up, installation, and adjustments. These styles feature dimensional stability, which helps to ensure even gland load distribution and promote longer packing life.

1625G
Graphite fiber with a light PTFE dispersion coating fills the void and assists in reducing friction associated with the start-up and break-in period.

1626
Graphite fiber with a proprietary< colloidal graphite dispersion, which< permeates the packing cross-section while leaving an enriched graphite surface coating that enhancs lubricity and heat dissipation.

1635G
Constructed of high-purity graphite fibers pre-coated at the time of manufacture and containing no PTFE.

N1635
Constructed of the highest-purity graphite fibers certifiably compliant with Mil-P-24583 and General Electric specification NEDC31795.

Applications
Static or dynamic/chemicals, solvents, corrosives, water, steam, ammonia, air, oils, paper stock, liquor, condensate, boiler feed water.

Standard Sizes
Styles 1625G, 1626, 1635G, and N1635 are available in standard cross-section sizes from 1/8" to 1" in 1/16" increments.

As Rite-Pak® spools, these standard sizes are available for immediate shipment. Metric and larger sizes are available upon request. Packing can be die-formed to exact dimensions for ease of installation and enhanced performance.