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van cho máy lưu hóa cao su | van đóng cắt cho máy lưu hóa cao su VP3W-FR(S) VP3W-SR VP3W-FD(S) VP3W-SD VP2W-FR(S) VP2W-SR VP2W-FD(S) VP2W-SD
● On/Off valve.
● Perfect sealing with the disc ring made of PTFE.
● Two stem structure absorbing the impact in the seat.
● Body and Lower Seat Flange made of Stainless Steel.
● Gland Packing made of 4 pieces V-packing that preventing the leak around the stem.
● Spring with Shot peening process that improves the life time.