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Combo valves

A new generation of needle and shut-off valve provides screwdriver-adjustable control and positive shut-off without damage to the needle. It is ideal for providing hydrogen and air to an FID, since the flow setting is not changed by turning the valve on and off. It can also be used to supply make-up or combustion gas in a wide variety of applications.

The valve body materials are anodized aluminum or stainless steel, with Viton O-ring seals. Maximum temperature is 100°C, and maximum inlet pressure is 100 psig. The valve can be panel-mounted in an 11/16" or 3/4" hole, using hardware supplied. Comes with Valco 1/16" ZDV fittings. Other configurations are available in OEM quantity upon request.

The standard knob is silver-colored and .62" long. Colored knobs for gas identification are available separately, in two lengths.

Product numbers

Select description to jump to product numbers:

Aluminum bodied combo valves
Stainless steel bodied combo valves
Optional colored knobs

Aluminum bodied combo valves

Maximum flow *	Product no.
10 ml/min	CNV1A10S1
50 ml/min	CNV1A50S1
150 ml/min	CNV1A150S1
250 ml/min	CNV1A250S1
500 ml/min	CNV1A500S1

* with 40 psi helium or nitrogen

Stainless steel bodied combo valves

Maximum flow *	Product no.
10 ml/min	CNV1S10S1
50 ml/min	CNV1S50S1
150 ml/min	CNV1S150S1
250 ml/min	CNV1S250S1
500 ml/min	CNV1S500S1

* with 40 psi helium or nitrogen

Optional colored knobs

Color	Product no.
Standard length (.62")
Green	CNVEKG
Red	CNVEKR
Blue	CNVEKU
Silver	CNVEKS
Black	CNVEKB
Longer length (1.25")
Green	CNVEKLG
Red	CNVEKLR
Blue	CNVEKLU
Silver	CNVEKLS
Black	CNVEKLB