Low Flow Version - Enfield Technologies

PFV
Milliflow
Miniature
Proportional Valves
With excellent resolution and a miniature Ø0.12 mm (0.005”) orifice, PFV Milliflow
2-way proportional solenoid valves are optimized for low flow liquid (0 to 30 mLPM)
and gas (0 to 1.3 SLPM) applications. Stainless steel construction, multiple seal
options and optional onboard drive electronics make these valves ideal for OEM users.
Features
• Optimized Onboard
Drive Electronics Available
• Low Hysteresis
• Stainless Steel Construction
• Consistent Lift-Off Current
• Individually Calibrated
• Laser-Marked Traceable
Serial Number
• Low Power Consumption
• Precision Ø0.12 mm Orifice
• Handles Liquids & Gases
Applications
• Micro-Dosing
• Leak Testing
• Calibration Equipment
• Mass Spectrometry
• Drug Delivery
• Gas Chromatography
• Diagnostics
• Precision Metering
• Analytical Instrumentation
Industries
• Life Sciences
• Medical Equipment
• Industrial Automation
• Semiconductor
• Pharmaceutical
Mechanical Specifications:
Valve Type:
2-Way Proportional Normally Closed
Gating Element:
Poppet Seat Valve
Environmental Protection Class:
IP67
Ports:
Concentric Porting with 10-32 Male Stud
Connector:
Wire Leads - 22 Gauge, 193mm length
Mounting:
10-32 UNC Male Stud
Operating Temperature:
-20...50C (-4...122F)
Filtration:
5 um Particulate
Media:
Neutral Gases, Oxygen, Liquids
Other Compatibilities Available
Dimensions:
62.2 x 26.0 x 26.0 mm
(2.45 x 1.02 x 1.02 in)
Burst Pressure:
35 bar (500 psi)
Leak Rate:
< 0.2 sccm
Electrical Specifications
(with onboard electronics):
Power Requirement:
12 or 24 VDC options available
Command Input:
0...5VDC, 0...10VDC or 0...20mA
options available
Electrical Specifications
(without onboard electronics):
Nominal Coil Resistance:
16.6Ω or 65Ω
Maximum Coil Voltage:
12VDC or 24VDC
Current for Full Open:
350mA or 175mA
Nominal Maximum Power Consumption:
2.1W
Performance Specifications:
Orifice Size:
Ø0.12 mm (0.005”)
Hysteresis:
±5% of full current (max)
Response Time:
<30 ms
Wetted Material Specifications:
Body:
316 Series Stainless Steel
Seals:
FKM (Viton®), FFKM (Kalrez®), or EPDM other materials available on request
Moving Elements:
430 Series Stainless Steel
302 Series Stainless Steel
304 Series Stainless Steel
PFV
Milliflow
Miniature
Proportional Valves
Valve Design: With its unique, patented triple spring technology
(balance - guide - control), the PFV series of valves produces highly linear
flow curves that can be calibrated to the ideal inlet air pressure based on
the flow required. This ensures consistent current liftoff from valve to valve
and application to application.
2
1
Design features
Onboard electronics avilable for
optimized control, consistant
performance and quick set up
Fully-sealed wire leads help
maintain the valve’s IP67 ingress
protection rating
Wire numbering on cap makes
consistent wiring in OEM
applications easy
Each valve is laser marked at
end-of-line with date and time
traceable serial number
Body made from 300 and 400
series stainless steel for maximum
chemical and media capability
24mm hex flats allow for easy
mounting and tightening of valve
to the correct torque specification
PFV
Milliflow
Miniature
Proportional Valves
Coil Characteristics and Electrical Properties (without onboard electronics)
Coil Order Code
12
24
Resistance
16.6Ω
65Ω
Max Current
350mA
175mA
Max Voltage
12Vdc
24Vdc
Nominal Power Consumption
2.1W
2.1W
Electrical Properties (with onboard electronics)
The PFV comes with three available onboard driver options
engineered to optimize the performance of the valve. These
electronics were designed especially for the PFV, helping users
avoid the expense and effort of characterizing valves and developing
electronics. This is ideal for users who have tight project deadlines,
want to get to market quickly and are looking for a plug-and-play
device that can be up and running in a short amount of time.
Additionally, since these electronics sit under the cap of the valve,
the valve is able to maintain its IP67 rating that allows it to tackle
more challenging applications.
Number
1
Function
Power +
Color
Brown
2
3
Power - *
Command +
Blue
Black
Input
12: 12 Vdc
24: 24 Vdc
0Vdc
E01: 0...10Vdc
E02: 0...20mA
E05: 0...5Vdc
*Command (-) should be connected to this 0V source.
Features
• Automatically Adjusts for Changes in Coil
Resistance due to Temperature
• Reverse Polarity Protection
• Simplified 3-Wire Design (Power, Ground
and Command)
• Onboard Power LED
• Closed Loop Current Design
• Wide Temperature Range
• Overvoltage Protection
• Designed for Continuous Use
• Low Power Consumption
• Compact Size - Fits Under Cap
• Maintains IP67 Rating
• Handles Power Supply Fluctuations
• Three Input Ranges (0...5V, 0...10V and
0...20mA)
• Protects Against Wiring Mistakes
• Plug & Play
• Designed and Optimized for PFV Series
of Valves
PFV
Milliflow
Miniature
Proportional Valves
Air Flow vs Current: Each 100 kPa Calibration Pressure
Ø0.12 mm (0.005”) Orifice Flow vs. Current
1.6
1
0.9
1.4
0.8
1.2
0.7
Flow (SLPM)
Flow (SLPM)
0.6
1
0.5
0.4
0.8
0.3
0.2
0.6
0.1
0.4
0
0
20
40
60
80
100
120
140
160
180
200
140
160
180
200
Current(mA)
0.2
0
0
20
40
60
80
100
Current (mA)
Note: Based on test results from typical setup: 24Vdc coil, 20C ambient temperature and
100 kPa increases in calibration pressure (port 1) flowing to atmosphere (port 2).
Figures are to be used for general guidance only.
120
PFV
Milliflow
Miniature
Proportional Valves
Maximum Flow Rate vs. Upstream Pressure - Air
1.4
Ø0.12 mm Orifice
Maximum Flow Rate ±10% (SLPM)
1.2
1
0.8
0.6
0.4
0.2
0
kPa
psi
100
15
200
29
300
44
400
58
500
73
600
87
700
102
800
116
900
131
1000
145
Ups tream Pressure (Referenced to Atmosphere)
Maximum Flow Rate vs. Upstream Pressure - Water
Maximum Flow Rate ±10% (mLPM Water)
30
Ø0.12 mm Orifice
25
20
15
10
5
0
kPa
psi
100
15
200
29
300
44
400
58
500
73
600
87
700
102
Upstream Pressure (Referenced to Atmosphere)
800
116
900
131
1000
145
PFV
Milliflow
Miniature
Proportional Valves
The PFV Milliflow Proportional Valves simplify design and installation for makers of medical, life science, semiconductor
and other OEM equipment by providing repeatable, accurate flow in response to input current. With an orifice size of
Ø0.12 mm (0.005”), choosing a valve based on inlet air pressure and required flow becomes easy. Each valve and
pressure combination is then individually calibrated to maximize linearity and minimize hysteresis, providing top of the line
performance in a small package size.
PFV - W12 E 05 - M0 1 2 C - 0 1 0 0
Order Code Max Coil Voltage
12
12Vdc
24
24Vdc
Order Code
Blank
E01
E02
E05
Electronics
No Electronics
0...10V Input
0...20mA Input
0...5V Input
Order Code
C
E
K
Seals
Viton
EPDM
Kalrez
Calibration Pressure
Select the maximum pressure that the valve
will operate at.
Example: A valve with order code 0100 is
calibrated for use with 100kPa (14.5psi)
max inlet pressure.
Increments of 100 kPa can be specified.
Enfield Technologies
50 Waterview Drive
Shelton, CT 06484 USA
+1 203 375 3100
enfieldtech.com
Enfield Technologies is an expert in high performance proportional control systems. Our standard product line
focuses on pneumatics. With custom products and engineering services, we also apply our expertise in other areas
of fluid power, electromechanical systems, and control electronics. New developments in pneumatic technology are
opening doors for design engineers to create unique, market leading products and systems.
Enfield Technologies is leading this innovation. Our control valves and electronics solve many of the challenges
posed by compressible fluids. The additional functionality and performance from Enfield Technologies helps our
customers create breakthrough applications and enhance existing systems. Simply put, we make pneumatics do
things that others declare impossible.
Enfield Technologies
50 Waterview Drive
Shelton, CT 06484 USA
+1 203 375 3100
enfieldtech.com
© 2017 Enfield Technologies, LLC. All rights reserved. Enfield Technologies’ name and logo are trademarked. These products may be protected by one or more issued or pending patents. WARNING: Installation and operation of mechanical,
electric, and high pressure systems (fluids and compressed gas) involves risk including property damage and personal injury or even death. You should be properly trained or certified, and should take appropriate safety precautions. Enfield
Technologies Standard Terms and Conditions of Sale and Use apply.
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