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APG’s Style 1174 valve packing has PTFE fibers treated with a PTFE dispersion which fills and seals all voids in the packing body. After braiding, a PTFE coating is applied and the packing is forced air dried. This packing will not wick making it an excellent choice for valves, hatch seals, and inspection port seals. The PTFE construction makes it impervious to almost all chemicals and acids and is an excellent valve stem packing for all chemicals and corrosives; inert to all fluids except for molten alkali metals. Style 1174 is recommended for operating temperatures up to 500°F / 260°C for all severe chemical and corrosive services where an inert packing material is essential.
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Operating Conditions
Temperature: 500ºF / 260ºC
Shaft Speeds: 1200 fpm
pH Range: 0-14
Equipment
Valves, expansion joints and static applications.
Recommended For
All severe chemical and corrosive services where an inert packing is essential.
Treatment
Treated with PTFE dispersion
Available in:
1lb, 5lb, 10lb boxes
The table below helps identify the poundage box need with the approximate length of packing inside.