Two-section stem design with rolled hardened upper stem threads and specially hardened lower stem surfaces, 

Upper stem threads are grease segregated from system media, 

Non-rotating lower stem moves up and down instead of threaded up and down, reducing packing friction with each stroke and reducing wear between seat and head, 

Valve has back seal in fully open position, 

Handle is screw-locked at both ends for stability and durability, 

Bore: 4mm, Operating pressure: 2D, 2R, 2RH, 3DH, 3RH, 5D, 5R up to 414bar (6000psig), 2DH, 2RH, 3DH, 3RH, 5RH, 5R up to 414bar (6000psig). Working Pressure: 
2D, 2R, 3D, 3R, 5D, 5R up to 414 bar (6000 psig),
2DH, 2RH, 3DH, 3RH, 5DH, 5RH up to 690 bar (10,000 psig), 

Operating Temperature: 
PTFE packing: -54°C to 232°C (-65°F to 450°F), 
Graphite packing: -54°C to 649°C (-65°F to 1200°F).