Style 1389, 100% GFO®

Product Data

Material: Oriented virgin ePTFE highly loaded with ultra- pure graphite powder, with inert lubricant
Construction: InterwovenTM braid
pH Range: 0 – 14 (all fluids except strong oxidizers in the 0 – 2 pH range, such as oleum, fluorine, fuming nitric acid and aqua regia)
Pressure Limit: 300 psi
Shaft Speed: 4300 fpm (21.8 m/s)
Temperature Limit: -400°F to 550°F (-240°C to 288°C)
Datasheet 1389GFO


Palmetto style 1389, (100% GFO®) delivers the best all-around packing on the market.

Heavy graphite loading serves to both increase the heat transfer rate and decrease thermal expansion. This permits higher shaft speeds with less risk of glazing or burning. This reduces break-in time, lowers the chance of scoring, and promotes cooler long-term running.

Style 1389, (100% GFO) is highly recommended in wideranging service conditions, including highly reactive fluids, high shaft speeds and moderate to high pressures. Style 1389, (100% GFO) is proven in such diverse equipment as rotating pumps, valves, mixers, blenders, extruders, reciprocating pumps and agitators, among others.

*Palmetto is a member of W.L. Gore’s Seal of Assurance program. Style 1389 stenciled with “100% GFO” assures the user that only fiber from W.L. Gore is used.

How to Order

Specify: style number, size, quantity and packaging desired
Datasheet 1389GFO Table