The valve packing CONTROLLER-ONE it's a special graphite Cup & Cone stem sealing device designed and produced to offer a reliable product which comply the VOC and HAP fugitive emissions regulations.Three expanded graphite Sigraflex® low density rings together two high density graphite rings, contained by two GR8807 Incobraid® rings working as wiper rings: this is Controller-One!
The innovative Cup&Cone configuration of the graphite rings with different density allows a great radial expansion already with modest torque loads.
Cup&Cone Flexible expanded graphite formed rings Sigraflex®
Wiper's rings Incobraid® GR8807
Valve Packing Low Emission