YC Industries Inc. Valve Packing

Valve Packing

The purpose of valve packing in a valve is to prevent the leakage of the media, either liquid or gas, in the valve to the exterior atmosphere past the stem of the valve. The valve packing is contained in the valve's stuffing box.

Our high temperature valve packing, in sets, contains squared rings of different types of graphite materials. Industry standard utilizes 2 sets of pure carbon graphite rings (430) and flexible graphite die-formed center rings (800D). Our valve packing sets offer the following choices.

End Rings (2)	Description	Construction	Option
Style 430D	High purity continuous carbon graphite yarn. Graphite treated	Braided	Corrosion Inhibitors
Style 435D	High purity continuous carbon graphite yarn. Impregnated with PTFE	Braided
Style 800D	Flexible Graphite	Braided	Corrosion Inhibitors

Center Rings (2)	Description	Construction	Option
Style 802D	Flexible Graphite	Die-Formed	Corrosion Inhibitors
Style 800D	Flexible Graphite	Braided	Corrosion Inhibitors

Style 880CD

Graphite Valve Packing

Each strand of graphite yarn on styles 880CD is reinforced with a strong, graphitic carbon fiber yarn. Carbon fiber yarns are also added during the braiding construction. The finished braid is a self-lubricating, easy to use/remove; anti-extrusion packing that is widely used on pumps and valves.

Temperature: 1250°F (650°C) Pressure: 3600 PSI (250 bar)

pH: 0-14 except strong oxidizers

Style 60MVT

Valve Packing / PTFE

One of the most common valve packing for applications temperature up to 450°F. PTFE V-Rings, or also called PTFE Chevron Packing, is a multi-part ring packing set made up of center sealing ring with top and bottom (male and female) adapters.