Description
Features
Cold drawn bar.
Two-stem design: thread hardened upper stem and smooth surface hardened lower stem.
Upper stem thread lubricant isolated from system media.
Linearly instead of helical movement of the nonrotating lower stem, avoiding galling damage to the seat and tip, as well as reducing the total friction area between the packing and thelower stem.
Safety back seating seal in fully open position.
Panel mounting available. Steady and durable fastening of the handle by double lock-pins. Handle color options are available.
Working pressure up to
Leak-tight performance testing for every valve with nitrogen/air at the maximum working pressure, but not higher than 6000 psig.
NB Series —
Stainless steel: 6000 psig (414 bar)
Alloy C-276: 6000 psig (414 bar)
Alloy 400: 5000 psig (345 bar)
Titanium: 3500 psig (241 bar)
Brass: 3000 psig (207 bar)
NBH Series—
Stainless steel: 10000 psig (690 bar)
Working temperature:
PTFE: -65°F to 450°F(-54°C to 232°C)
PEEK: -65°F to 500°F (-54°C to 260°C)
Graphite: -65°F to 1200°F (-54°C to 649°C)
