diaphragm valves
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Valco Instruments Co. Inc. Sales:
800–367–8424
Fax: 713–688–8106
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141
Introduction
Dimensions
Valve diameter is 35 mm (1.375"),
height is 42 mm (1.625"), and weight is
less than 255 g (9 oz).
Valve Fittings
The valve cap has Valco 1/32" or 1/16"
ZDV fitting details – a rugged design
which allows easy replacement of
tubing or of the valve itself.
Standard bore size is 0.40 mm (.016" ).
Optional bore sizes are 0.25 mm (.010")
and 0.75 mm (.030").
Lifetime
Diaphragm valve lifetime can
exceed 1,000,000 cycles at ambient
temperature or 500,000 cycles at
175°C.
more information
Materials
Metals . . . pp 254-255
Valve descriptions
Cheminert injectors and
valves . . . . . 144-149
Cheminert
selectors . 144, 150-151
Valco injectors and
valves . . . . . . 96-99
Valco selectors . 100-101
Valve prices
Cheminert HPLC 152-163
Cheminert low
pressure . . . 164-167
Cheminert
selectors . . . 170-177
Valco GC . . . . 102-111
Valco HPLC . . . 112-116
Valco selectors . 122-133
Temperature/Pressure
Specifications
The standard valve can be operated at
temperatures up to 175°C, at 300 psi.
The specially-formed diaphragm also
permits sampling at subambient
pressures.
Materials of Construction
The cap is Nitronic 60 stainless
(optional Hastelloy C or Type 316
stainless), with remaining metal parts
of 300 series stainless. The diaphragm
is formed from a specialized polyimide.
Actuation
Actuator air (50-60 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. See information box below.
actuation
A 3-way solenoid is
required for actuation.
31E1-120VAC $120
31E1-220VAC 120
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
