Forged Needle Valves
FNH Series: Maximum working pressure 10000 psig
Features
- One-piece forged body.
- Two-stem design:thread hardened upper stem and smooth surface hardened lower stem.
- 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 the lower stem.O Panel mounting available as an option.
- Steady and durable fastening of the handle by double lock-pins.O Handle color options are available.
- Leak-tight performance testing for every valve with nitrogen at the maximum working pressure.O Maximum working pressure:
NFH Series-Stainless steel:10000 psig (689 bar)Working temperature:
PTFE:-65°F to 450°F(-54℃ to 232℃)
PEEK-65°F to 500°F(-54℃ to 260℃)
Graphite:-65F to 820°F (-54℃ to 454℃)
Item |
Component |
Valve Body Material |
||
316 SS |
F91 |
F92 |
||
1 |
Handle |
Anodized aluminum or stainless steel or black knob |
||
2 |
Set Screw |
Stainless stee |
||
3 |
Packing Bolt |
30455/A276 |
||
4 |
Upper Stem |
3165S/A276 |
F91/A182 |
F92/A182 |
5 |
Lock Nut |
31655/8783 |
||
6 |
Panel Nut |
17-4PH |
||
7 |
Gland |
31655/A276 |
F91/A182 |
F92/A182 |
8 |
Packing |
PTFE or PEEK or graphite |
||
9 |
Packing Washer |
3165S/A276 |
F91/A182 |
F92/A182 |
10a 10b |
Lower Stem |
Chrome-plated 31655/A276 |
Chrome-plated F91/A182 |
Chrome-plated F92/A182 |
11 |
Body |
31655/A182 |
F91/A182 |
F92/A182 |