FLOW-ADJUST0 pages
Standard and high resolution manual control valves
for extremely precise control in low flow
> Introduction
Bronkhorst High-Tech B.V., the European market leader in thermal Mass
Flow Meters/Controllers and Electronic Pressure Controllers, has over 30
years experience in designing and manufacturing precise and reliable
measurement and control devices. With a wide range of instruments,
Bronkhorst High-Tech offers innovative solutions for many different
applications in many different markets.
> Description
The new FLOW-ADJUST manual control valves are designed for
extremely precise control in low flow gas and liquid applications.
The manual control valves are available in two standard resolution
(SR) and five high resolution (HR) models offering a smooth
control of gas or liquid flow. The standard resolution needle
valves cover the two highest flow ranges whereas
the high resolution valves cover the lower gas
and liquid flow ranges.
> FLOW-ADJUST series
> Features of SR valve
The FLOW-ADJUST series control the flow of
gases and liquids which are compatible with
the wetted parts specified in this leaflet.
Kv ranges from 2.7x10-4 to 9.0x10-2 are available
(Cv equivalent 3.2x10-4 to 1.05x10-1) in 7
different models as in-line valve assemblies
with G ¼” BSPP female inlet and outlet ports.
ut ompact needle valve in aluminium housing
C
ut eak-free valve
L
ut recise flow adjustment with 7-turn standard resolution
P
ut alve knob included for easy adjustment
V
ut wo M4 female threads in the bottom of the housing for
T
solid fixation
ut uitable for gases and liquids
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> Features of HR valve (additional to SR)
ut pring loaded, non rising adjustment stem with 56-pitch
S
thread provides smooth, non-reversing flow characteristics
and 15-turn high resolution
ut on-rotating stainless steel valve pin with precision ground
N
flat gives exact control
ut alve pin o-ring guarantees positive shut-off without stem
V
damage
ut elf-lubricating orifice liner assures long life
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