| POLYPROPYLENE
LINED VALVES (PPL) +10 degrees to +200 degrees F |
| A general
purpose plastic lining with good chemical and temperature
resistance. Utilized for water treatment, chemical processing,
most plating fluids, steel mill pickling lines, food stuff
and drinking water. Generally polypropylene should not be
used in contact with strong oxidizing acids, chlorinated hydrocarbons
and aromatics. |
|
| TEFZEL
LINED VALVES (ETFE) -10 degrees to -300 degrees F |
(Ethylene-Tetrafluorethylene)
Outstanding resistance to chemicals and strong acids. Also
has high abrasion resistance for tough services. Below 350
degrees F has no known solvent. |
|
| KYNAR
(PVDF) Polyvinylidene
Fluoride +10 degrees to +275 degrees F |
| Offers
very low permeability. A strong tough abrasion resistant fluorocarbon
material resistant to most acids, bases and organic solvents.
It is ideally suited to handling wet or dry chlorine, bromine
and other halogens. |
|
| Metal
bodies can be lined with soft natural rubber, hard natural
rubber, neoprene, ethylene propylene, or viton. Typical service
and temperature range would be similar to that for diaphragms
of the same material. |
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