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Application Areas :
Caution : Do not use on liquid or gaseous oxygen, moiten aikaii metais and some rare halogenated compounds.
Key Features and Benefits :
Valve Stems : Remove old packing. Clean off loose material from stem. Unwind Chesterton 3500 and cut just long enough tor a particular application. Wrap 3500 around the stem to ﬁll stutﬁng box. Tighten down the follower nut. it nut or packing gland bottoms out, back the nut off, add another wrap of 3500 and retighten. Not recommended in valves if the pressure in the equipment exceeds 35 kg/cm2.
Flange Faces : Remove old gasket. Clean off any gasket residues on the ﬂange face. Using a single strand ot 3500, form a loop around the surface to be sealed. Wrap around each bolt, overlapping the ends. Recommended tor applications up to 35kg/cm2. Chesterton 3500 Valvelon can be used with steam, salt water, air, retrigerants, sulfuric acid, hydrochloric acid, nitric acid, chromic acid, sodium hydroxide, potassium hydroxide, kerosene, gasoline, perchloroethylene, hydrogen, ammonia, ﬂuorinated solvents, chlorine, propane, butane, nitrogen and generally all substances within a pH range of 0 to 14. Do not use with liquid or gaseous oxygen, molten alkali metals and some rare halogenated compounds.
Chesterton 3500 Valvelon is a dense, pure PTFE sealant that can be used as a non-hardening valve packing or ﬂange gasket. The unique construction of the product allows it to squeeze in all directions to till voids and conform to surfaces when installed in a valve or flange. It will not extrude under pressures of up to 35 kg/cm2 due to its multi-layered structure. Chesterton 3500 Valvelon is ready to use as received. Simply unwind and cutjust enough for a particular application. Users can reduce expensive gasket and packing inventories by stocking this one convenient product. Because it contains no surface lubricants or chemical fillers, the product has an unlimited shelf lite. The product can withstand a wide range ot temperatures and be utilized with virtually all chemicals, generally all substances within a pH range of U to 14. It is non-hardening in service, and will remain permanently pliable.