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.