1 Product Overview31XX series multi-channel rotary valve is a
product independently developed by Keyto, the main function is to
achieve multi-channel switching. This series of rotary valve has a
variety of model selection. Moreover, this series of rotary valves
can withstand different reagents under different working
conditions, and the operating life can reach more than 1 million
times.1.1 31XX Series Multi-Channel Rotary
Valve Characteristic This rotary valve is integrated with
a drive controller, which controls the operation of the stepper
motor by receiving instructions from the host computer. So as to
realize the fluid channel switch. There are three kinds of serial
port protocol: RS232/RS485/CAN bus.The rotary valve adopts sapphire
spool, which can be applied to all kinds of corrosive liquids. The
valve head is processed by PCTFE (polytrifluoroethylene), which is
maintension-free.Spool rotor rotation depends on the planetary
reducer motor as the power device, high reliability.Advanced
zirconia ceramic processing technology, strict inspection
procedures, unique sealing scheme, to ensure that the service life
of the valve can reach more than 1 million times, without
maintenance and care.Contact with liquid medium parts of the
material of good chemical resistance. Various materials can be
selected to ensure the compatibility of chemical media.1.2 Word
Definition Flow capacity CVAlso known as the
flow coefficient, foreign general CV, domestic general KV, the two
can be converted, are dimensionless parameters, on behalf of the
liquid flow capacity of components, the actual design and use,
according to the application conditions to convert into a
dimensional flow reference.--When measured, the flow rate of the
medium, unit gal/min;--Specifies the density of the water medium at
60°F,;--Pressure difference between front and rear of element under
test;,--When measured, the density of the medium and the pressure
difference before and after the front element.Converted to the
domestic general dimension, then:Cv=0.03, which means that the flow
rate of the component is 5ml/s under the condition of 25ºC and
50KPa. Max Response TimeFrom the inlet end, pass air or water
with a medium of 0.25MPa or maximum working pressure difference,
and input the start signal to the tested rotary valve. Rotate from
any channel to the channel corresponding to this channel at 180°.
The outlet of the rotary valve is measured by the pressure sensor.
At the same time, the interval time from the moment the signal is
sent to the maximum pressure rise from the instant the signal is
sent by the test instrument with fast response time, and the
arithmetic average of the values corresponding to different
corresponding channels is the maximum response time. The same is
true for the response time test of switching to another specified
channel.Inner VolumeThe volume of the inner flow channel containing
the cavity from the inlet port to the outlet port of the rotary
valve in the closed state..Multi-channel rotary valve parameter
table: Product nameSpecification parameterNumber of
channels6-Channels10-Channels12-Channels16-Channels24-ChannelsContact
liquid materialPCTFE, Sapphire, CeramicPEEK, Sapphire,
CeramicInitial position detectionSet to automatically detect the
initial position after power onPort to port volume27ul27ulUpper
runner:25.5ulLower runner:24ulUpper runner:33.4ulLower
runner:28.5ul4.6ulRunner diameter1.2mm1.2mm1.0mm1.0mm0.5mmOperating
temperature0-50ºCOperating humidity≤80%Valve head flow
temperature0-80ºCConnection1/4-28 UNF, 10-30 UNF, 6-40
UNFReplaceable partsCan be replaceable valve headTransposition
performanceMultiple locations, random startOptional driver
boardNoSwitching time≤2.5S/circle, 24-channel rotary valve
≤2S/circleMaximum driving force/torque2.1N/MAvailable communication
protocolsRS232/RS485/CAN BusCommunication rate9600dpsDevice address
settingSerial port settingsDevice parameter settingSerial port
settingsOverall dimensionsSee 2.3.1Input powerDC24V±10%Maximum
power48WPressure6-16 channels: 0-0.7MPA 24 channels:
0-0.3MPaWeight6-12 channels≈0.78kg 16-24
channels≈0.93kgPhoto: /* March 10, 2023 17:59:20
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