Harsh environment needle valve NV3
- type forged body
Two stem design, upper stem thread by rolling hardening treatment,
The lower stem surface is specially hardened
Combined bonnet construction prevents accidental valve decomposition
The grease on the upper stem threads is isolated from the system medium
The non-rotating lower stem moves up and down instead of rotating up and down.
Reduce the wear and tear on the packing per stroke.
Reduce friction between seat and head
Valve has back sealing function in full open position
Panel installation
The handle is locked by screws at both ends. Strong and durable
A variety of color handles are available
Each valve is rated to work pressure before leaving the factory
Nitrogen or compressed air (NU series)
Or 1.1 times rated working pressure water (NUH series) for sealing test
Working pressure can reach
Stainless steel 414bar (6000psig)
Alloy C-276:414bar (6000psig)
Alloy 400:345bar (5000psig)
Titanium :241bar (3500psig)
Brass :207bar (3000psig)
Operating temperature
PTFE packing :-54℃ to 232℃(-65°F to 450°F)
PEEK:-54 ° C to 260 ° C (-65°F to 500°F)
Graphite packing :-54℃ to 649℃ (-65°F to 1200°F)
Rules of coding
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Language
中文
En
