The VICI mini diaphragm valve has been designed for trouble-free use in applications requiring minimal maintenance and maximum lifetime, making it an ideal choice for the process industry, automated lab analyzers, or continuous-monitoring environmental analyses. • Only 35 mm (1.375") in diameter • >1,000,000 cycle lifetime • Built in actuator

The mini diaphragm valve consists of plungers and ports arranged in a circular pattern, with the plungers controlled by the reciprocation action of two air actuated pistons. Maintenance procedures are greatly simplified, since a single screw holds the valve together and locating pins insure proper alignment. Extremely long lifetime, very short actuation time (10 milliseconds), minimum internal dead volume, and reliability have made this type of valve very successful in process gas chromatography for both sample injection and column switching.

Diaphragm valves

Internal sample injectors
Sampling/switching valves -
   6 port and multifunctional 10 port

Which valve do I need?

Sample loops

Materials of construction
Diaphragm valve specifications

Microvolume internal sample injectors

1/32" and 1/16" fittings

Microvolume sample injectors are used to achieve sample sizes of .5 µl and 1 µl. The internal sample "loop" is actually an engraved connecting slot on the valve cap which is sized to contain a specified amount of sample. Valves are rated for 750 psi at 50°C, with Valco zero dead volume fittings for 1/32” or 1/16” tubing.

Applications

Click on the schematic   to view an application

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Actuation

Actuator air (40-50 psi) is supplied to a side port with 10-32 female threads, permitting use of a variety of compression or barbed fittings. A 3-way solenoid is required for actuation. (Order separately.)

Further reference

Which valve do I need?
Sampling and switching diaphragm valves
Replacement diaphragms

Includes stainless steel nuts and ferrules.
A 3-way solenoid is required for actuation. (Order separately.)

Specs	Fitting    size	Bore	Sample    size	Product No.
50°C max  750 psi liq  Nitronic 60     valve body    Polyimide     diaphragm	1/32”	0.25 mm    (.010")	.5 µl	DV12-1114-.5
			1 µl	DV12-1114-1
	1/16”	0.40 mm  (.016")	.5 µl	DV22-2114-.5
			1 µl	DV22-2114-1
	1/16”	0.75 mm  (.030")	.5 µl	DV22-3114-.5
			1 µl	DV22-3114-1

Sampling and switching valves

6 port and multifunctional 10 port
1/32" and 1/16" fittings

VICI 6 port and 10 port mini diaphragm valves for process GC can perform a wide variety of sample injection and switching functions. Valves are rated for 300 psi at 175°C, with Valco zero dead volume fittings for 1/32” or 1/16” tubi