Needle Valve Inquiry
Needle Valve Inquiry
(OP)
Hi friends;
I inquire needle valve manufacturers for Class 4500 pressure ratings.(For example Fujikin needle valve)
If you have info about it, please inform me.
Have a nice days and thank you for your supports.
I inquire needle valve manufacturers for Class 4500 pressure ratings.(For example Fujikin needle valve)
If you have info about it, please inform me.
Have a nice days and thank you for your supports.





RE: Needle Valve Inquiry
Swagelok sells fittings rated 60 000 psi. Autoclave Engineers sells components rated to 150 000 psi. Needle valves may not be rated as high as the fittings but would cover 4500 psi.
RE: Needle Valve Inquiry
http://www.hanbayinc.com/
They make stepper motor drives that bolt to any of the small instrument valves.
Roy
RE: Needle Valve Inquiry
Valve built-in to the line with screw structure.
Fujikins decleration is ;
"The valve is rated at ANSI Class 4500 for pressures.
At temperature at 38°C maximum pressure is 74,4 Mpa
At temperature at 600°C maximum pressure is 30,2 Mpa"
RE: Needle Valve Inquiry
2.1.1 Rating Designations. ...
(b) Class 4500 applies only to welding-end valves.
...
RE: Needle Valve Inquiry
I have good experience with the following products:
http://www.sami-instruments.com/en/valvole.asp
(please note the Temperature vs Pressure graph on the right of the webpage).
We have bar stock 1/2" and 3/4" NPT needle valves rated up to 6000 psi (even if we never use them over 3200 psi...).
Hope this helps, 'NGL