– Type: Wash‑pipe packing seal kit for NOV VARCO top‑drive
– Nominal bore size: 3 inch
– Rated working pressure:7500 PSI
– Kit contents: Packing rings, backup rings, anti‑extrusion rings (5 pieces per kit)Made-in-Ch…
– Material: High‑wear‑resistant PTFE + NBR compound
– Function: Rotary dynamic sealing for wash‑pipe assembly
– Applicable unit: TDS‑8SA / TDS‑9SA / TDS‑11SA top‑drive systemMade-in-Ch…
– Medium: Drilling mud, high‑pressure drilling fluid
– Operating temperature:‑40℃ ~ +130℃
