PACE Hf Maximum flow proportional solenoid valve FEATURES · 2-way normally closed valve · Highest flow capacity in class, up to 500 slpm · Wide controllable range and tight control under varying inlet pressures · High inlet pressure capable (100 psi); inlet and outlet pressure balanced · Low power, low heat generation · Proven performance tested to 100 million cycles · Small size and light weight · RoHS compliant MEDIA COMPATIBILITY Air, argon, carbon dioxide, heliox, hydrogen, nitrogen, oxygen & others WETTED MATERIALS ELECTRICAL Power Steady state Cycling 15 Hz 0.6 W 1.2 W Supply voltage 12 VDC (-5% +10%) Control voltage 0 to 10 VDC Body: C36000 brass Others: FKM, 300 series stainless steel PHYSICAL PROPERTIES Operating environment 0 to 55 °C Storage temperature -40 to 70 °C Porting Manifold mount, 1/8 NPT manifold (optional) Weight 47 g (0.104 lbs) Filtration (customer supplied) 40 µm Oxygen clean VSO is a registered trademark of Parker Hannifin Corporation. E / 11278 / A 1/4 www.first-sensor.com www.sensortechnics.com PACE Hf Maximum flow proportional solenoid valve PERFORMANCE CHARACTERISTICS Part no. 941... Pressure Operating Proof -10...100 psig 1 5 0 p si g Orifice siz e 0.128" (3.25 mm) Leak rate1 Internal External <5 sccm air a t 1 0 0 p si g <1 sccm air a t 1 0 0 p si g Hysteresis typ. 3 %, (max. 7 %)3 FLOW CURVES (typical air flow at 20 °C)2 Notes: 1. sccm denotes Standard Cubic Centimeters per Minute. It is a unit for the flow rate at standard conditions of temperature and pressure. 1000 sccm = 1 slpm. 2. slpm denotes Standard Liters per Minute. It is a unit for the flow rate at standard conditions of temperature and pressure. 1 slpm = 1000 sccm. 3. Under worst case performance conditions over the life of the product. E / 11278 / A 2/4 www.first-sensor.com www.sensortechnics.com PACE Hf Maximum flow proportional solenoid valve OUTLINE DRAWING 0.21 (5.3) 0.2 (5.1) 1.35 (34.3) 0.69 (17.5) 0.05 (1.3) MOLEX# 87438-0343 Pin 3 Control Pin 2 Ground Pin 1 +12 V 3 2 1 2.29 (58.0) 0.25 (6.4) 0.86 (21.8) 0.31 (7.9) 0.25 (6.4) Mounting tab 0.13 (3.2) 1.37 (34.8) Recommended manifold detail 2x Ø 0.094 (2.4) thru Inlet (port 1) 1.0 (25.3) 2x Ø 0.203 (5.16) (reducing the diameter will reduce flow performance) 0.75 0.375 (19.1) (9.5) 0.13 (3.3) 0.375 (9.5) 0.75 (19.1) 0.26 (6.6) 2x Ø 0.208 (5.3) ports 0.26 (6.6) Ports center to center 0.86 (21.9) 0.13 (3.3) 2x 2-56UNC Outlet (port 2) dimensions in inches (mm) Manifold mount (optional) Section A-A Ø 0.405 (10.29) typ. both ends 0.91 (23.1) 0.55 (14.0) 1/8-27 NPT both sides 2x Ø 0.204 (5.18) 0.75 (19.1) 0.5 (12.7) A 2x Ø 0.125 (3.18) thru Ø 0.219 (5.56) 0.6 (15.24) 2x 2-56 UNC - 2B 0.25 (6.35) 2x 0.57 (14.48) 2x 4-40 UNC - 2B 0.25 (6.35) 0.5 (12.7) 0.375 (9.53) A 0.13 (3.3) 0.26 (6.6) 0.375 (9.53) 0.75 (19.1) 0.125 (3.175) 0.750 (19.05) 1.0 (25.4) 2x 0.25 (6.35) 2x 1.0 (25.4) 1.50 (38.1) dimensions in inches (mm) E / 11278 / A 3/4 www.first-sensor.com www.sensortechnics.com PACE Hf Maximum flow proportional solenoid valve ORDERING INFORMATION Series Elastomer Pneumatic interface Control method B ody Options 941 1 FK M 1 manifold mount 1 brass 2 Example: 941 1 1 1 2 Accessories 0 to 10 V Compensation 2 2 7% hysteresis Calibration 001 175 slpm @ 3 0 p si 001 (please order separately using the following order numbers) Order No. Description 191-000112-405 (free of charge) Mounting screws (two per valve) 890-001046-001 (free of charge) Manifold gasket, FKM (one per valve) 890-001051-001 (extra charge) Single station manifold, 1/8 NPT 590-000095-001 (extra charge) Test lead connector, 9 inch First Sensor reserves the right to make changes to any products herein. First Sensor does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. E / 11278 / A 4/4 www.first-sensor.com www.sensortechnics.com