4500 Series Needle Valves, Exhaust Port Flow Regulators

Gases	Filtered non-lubricated air, inert, sweet (natural) gases
Working Pressure	12 bar (145 psi) maximum
Working Temperature	-20ºC to +70ºC (-4ºF to +158ºF); Low temperature version; -50ºC (-58ºF ) (optional)
Maximum Flow L/min (SCFM) Cv(Kv)	6 bar (87 psi), 1 bar (14.5 psi) differential
Needle Valve (3mm orifice)	1/4” 290(10.5) -0.30(4.6)
Needle valve (6mm orifice)	1/4” 640(23) -0.64(10)
Exhaust Port Flow Regulators	1/4” 646(23) -0.65(10); 3/8” 1100(39) -1.10(17); 1/2” 1800(64) -1.80(28)
Construction Materials	Stainless Steel AISI 316L to NACE MR-01-75 Body; Stainless Steel AISI 316L to NACE MR-01-75 Internals; 316 Stainless Steel Spring; Nitrile Seals