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Butterfly Valve ราคาถูก Asahi America Type 57 PVC Butterfly Valve, Lever Handle, 3" Pipe Size
- Standard model (1-1/2" - 14") has PVC Body and PP Disc for superior chemical resistance and elevated temperature capabilities
- 316/403 stainless steel shaft has full engagement over the entire length of the disc and is a non-wetted part.
- Only solid and abrasion-resistant plastic disc and elastomeric liner are wetted parts.
- ISO bolt circle on top flange-no body or stem modifications required for accessories.
- Stem retainer-PP retainer to prevent stem removal.
The butterfly valve was originally used where a tight closure was not absolutely necessary. However, over the years, these valves have been manufactured with fairly tight seals made of rubber or elastomeric materials that provide good shut off similar to other types of valves. https://bit.ly/3uXHBar
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