Durco T4E Lined Plug Valves
Class 150 and 300 fluoropolymer lined valves for corrosive services
Acid Transfer, Ag-Chem, Bulk Chemicals, Fine Chemicals, Chemical Transfer, Caustic and Chlor-alkali, Chemical Processing
Leaching Acid, Pharmaceuticals, Chemical and Liquor, Caustic and Chlor-Alkali, Bleach Chemicals
The T4E Valves features a thick, continuous PFA liner which is locked to the body by T-slots. Since the PFA covers all wetted parts of the body the customer can save by not having to use high alloy materials for the body. The plug is PFA-encapsulated and the PFA covering extends up the stem through the top cap. The large sealing surfaces of this valve insure drop-tight shut-off. These valves are bidirectional and totally independent of line pressure. The primary seal to the atmosphere is between the plug and the seal band at the top of the liner. As a secondary seal, a dynamic self-adjusting , self-energized reverse-lip PFA diaphragm seal prevents stem leakage. If line pressure should force liquid to the stem seal area, the self-energizing reverse lip PFA diaphragm will be forced against the stem to prevent external leakage. If a leak occurs, simply re-seat the plug with a quick and easy in-line adjustment. An open-end wrench and a few seconds are the extent of your maintenance requirements.
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Complete technical and sales brochure of T4E product line. Dimensions are in Imperial units
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