SmartVO™
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nn Ideal for laboratory applications, test benches, and OEMs in analytical process industries nn SmartVO control circuit available for 0–5 VDC, 4–20 mA set point control nn Precise control over wide range of gas mass flow rates up to 1000 slpm nn Valve pressure up to 500 psig (34.5 barg) nn High pressure option with ValFlex™ valve seat up to 5000 psig (345 barg) nn Operates over a wide pressure differential range 0 to 5000 psig (0 to 345 barg) nn Smooth valve performance with proven proprietary frictionless-hovering, direct-acting control valve technology nn All clean gases including corrosives and toxics; specify when ordering nn No leaks; bubble tight shut off nn Wide range of fitting and elastomer configurations available (see p. 3) nn Aluminum, 316L and 416 stainless steel constructions nn Single-sided 24 VDC +/- 10% input power reduces installation cost and complexity nn CE approved nn 24 VDC power supply available nn Optimally tuned to the specific application nn Control circuit and power supply with optional NEMA 4X enclosure available for 0–5 VDC, 4–20 mA set point control SmartVO is available online and ships from stock the next day: www.sierrainstruments.com/shop/SmartVO High-Performance Gas Flow Control Valves ierra’s SmartVO™ control valves offer a robust and field-proven, direct-acting electromagnetic proportional control valve technology to perform over a wide variety of temperature and pressure variations in the gas stream. You can even locally adjust response characteristics for multiple applications or system pressure design changes. In addition to providing the SmartVO valve, Sierra can provide a complete valve control package with NEMA 4X enclosure, including a 24 VDC power supply and a 0–5 VDC or 4–20 mA control curcuit optimally tuned to the specific application. Sierra has manufactured gas flow control valves since the 1980’s as part of our mass flow controller product line—so SmartVO is field proven. In the case of our SmartVO, the customer already has flow or pressure metering in place and just needs a means of precision control. The SmartVO valve technology offers precision control for on/off partial flow control over a wide range of flow rates from 0 to 50 sccm up to 1000 slpm and pressures up to 5000 psig (345 barg) with our ValFlex™ high-pressure control valve. It provides fast-response to control signal changes and operates over a wide pressure differential range. The proprietary frictionless-hovering, direct-acting control valve is comprised of a solenoid coil that creates a magnetic field with electrical current designed for use in closed loop flow or pressure control systems. For precision you can rely on, Sierra’s SmartVO is the optimal choice

Models, Flow Rates, Input Power, & Coil Resistance The SmartVO requires a valve control circuit and power supply. Supply your own control circuit, or we offer a complete dual solenoid valve control package and power supply. See p. 3 for more information. VO-100L Economical Low Flow Maximum flow rate to 50 slpm Input power: 24 VDC +/- 10%; at 264 mA Coil resistance: 100 Ohms (nominal at room temperature) VO-100M Medium Flow Maximum flow rate to 300 slpm Input power: 24 VDC +/- 10%; at 629 mA Coil resistance: 42 Ohms (nominal at room temperature) VO-100H High Flow Maximum flow rate to 1000...

PRESSURE SPECIFICATIONS (CONTINUED) VALVE CONTROL CONFIGURATIONS Minimum Differential Pressure Requirement for VO-101 30 psi (2040 mbar) optimum 1 psi (68 mbar) minimum at 70°F (21.1°C) with outlet at ambient pressure Valve Type Proprietary electromagnetic proportional control with a solenoid coil that creates a magnetic field with electrical current Flow Body Materials Aluminum, 316L and 416 stainless steel Elastomers Viton", Buna, Neoprene*, Kalrez* Valve Seats Viton", Buna, Neoprene", Kalrez", PFA Teflon", and ValFlex" Weight VO-100L-AL .76 lbs (1.67 kg) Electrical Connections Fly...

PRODUCT CONFIGURATIONS (CONTINUED) One VO-100L and one VO-100M with 6-pin connection, Valve Control Circuit in enclosure, and Sierra power supply SMARTVO VALVES VO-100L-SS Version Valve Control Circuit in enclosure

850 PRODUCT FEATURES DIMENSIONAL DRAWINGS VO-100L & VO-101 Front View All dimensions are in inches with [mm] in brackets. Certified drawings are available upon request.

850 PRODUCT FEATURES DIMENSIONAL DRAWINGS (CONTINUED) VO-100HP Front All dimensions are in inches with [mm] in brackets. Certified drawings are available upon request. EXAMPLE OF DIMENSIONS WITH FITTINGS Dimension L Length with Fittings in Inches (mm) Fittings Example: VO-100L with 1/4-inch compression adds 2.02 inches to footprint, so overall dimension is 2.02 + 1.37 = 3.39 inches. VALVE CONTROL CIRCUIT ENCLOSURE — DIMENSIONS Top View Front View Cord Grip Connector Hole pattern punched out to customer specification

Instructions: To order a SmartVO, please fill in each feature number block by selecting the codes from the corresponding features below. Note: All SLPM flow ranges also available in NLPM Parent Model Number SmartVO" High-Performance Gas Flow Control Valves Standard configuration includes: flow body constructed of aluminum or 316L and 416 stainless steel; Viton® (standard) elastomers and valve seats; electrical connectors come stripped and tinned; requires 24 VDC input power; CE approved. Note: This is a valve only. The valve requires a valve control circuit and a power supply. The end user...

ORDERING CONTINUED Option 2: Power Supplies Low, Medium and High Flow SmartVO. 24 VDC power supply. Supplied with fly leads, 1.25 Amps, 110-230 VAC, CE approved. Specify plug preference in parentheses: (US) for USA plug, (EU) for Euro plug, (UK) for Great Britain plug. Note while VC2 will control two valves, T10F can supply power to two L, M flows but only one 100H NEMA 4X enclosure for valve controller PCA. Specify cord grip or 6 pin in parentheses ( ). Use ADS to specify desired hole pattern. Sierra Instruments, North America • 5 Harris Court, Building L • Monterey, California • (800)...