Chesterton 1765 White ePTFE Chemical Packing gland packing

Gland Packing
Chesterton 1765 White ePTFE Chemical Packing
Chemical-Resistant Packing


​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Chesterton 1765 is ideally suited for bleach pumps and other rotary applications requiring a white, non-staining packing. Constructed from chemically resistant, expanded PTFE material, this packing demonstrates higher speed performance capabilities than traditional PTFE materials for improved performance in a wide range of applications. Chesterton 1765 is ideal for rotary applications where chemical resistance is required and process needs to remain non-contaminated, such as ClO2 pumps, paper stock, and feeders. Materials
White expanded PTFE yarn with a special filler
Temperature Limit
Min -40° C (-40 ̊ F), Max 260° C (500 ̊ F)
Pressure Limit
20 bar g (300 psig)
Shaft Speed
10 m/s (2000 fpm)
​Chemical Resistance
​0 to 14 except for fluorine (F2), ClF3 and related compounds, and molten alkali metals