Description of 3 Inch Ball Valve:
ZECO 3 inch ball valve is usually a floating ball valve, the material can also be divided into casting and forging two kinds. ZECO's continuous improvement in products makes all staff in the factory attach equal importance to small-caliber products in batch. No matter from the aspects of purchase, processing, assembly, testing, spraying, or from the traceability of bar codes, ZECO will treat them as equals and try its best to make products more delicate.
Features of 3 Inch Ball Valve:
- ZECO 3 full port Ball Valve Stem surface roughness is strictly restricted between Ra0.4 and Ra0.8, which ensures entry of graphite packing powder into tiny stem scratches to function as a lubricator, minimizing leakages around stem. Max roughness of stuffing box is RA3.2, which is a proper value to hold packing ring in place and result in better sealing performance;
2. The packing is combination of parallel and vertical layer which is made of die-formed graphite ring processed by flexible graphite, characterizing heat resistance, less stress relaxation and low creep. The special structure means low friction on rotary stem, providing stabilized seal capability for the valve for a long time under frequent functioning;
3. Lipseal is the spring-energized seal, including Elgiloy or Inconel spring and PTFE jacket. lt's effective in a wide breadth of applications, such as highly corrosive chemical media, high sour gas, low temperature or cryogenic service;
4. ZECO valve company strictly control the quality of bulk products, 100% inspection.
