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High-pressure electrical controls valves series CV4-7 Emerson CV4-7 are stepper motor driven valves for precise control of refrigerant mass flow in CO2 systems and can be applied as (see next page): • High pressure gas valve (A) • Bypass valve (B) • Heat reclaim valve (C) • Expansion valves (D) • Suction pressure regulating valve (E) Features and benefits • Maintenance free • Multifunction • Fully hermetic design with ODF connections • Stepper motor driven • Short opening and closing time • Very fast full stroke time • High resolution and excellent repeatability • Positive shut-off function to eliminate the use of an additional solenoid valve • Linear flow capacity • Extremely wide capacity range (10...100%) Selection table • • • • CV5-HPV Optimal solution applied to offer the highest reliability and lifespan, accordingly to the high differential pressures in the CO2 systems Ceramic slide and port for precise flow and minimal wear Balanced force design Corrosion resistant stainless-steel body and connections Type Part No. Kv (m3/hr) Capacity range Inlet connection Outlet connection Electric connector CV4-HPV 802056 0.21 10...100% 3/8” ODF 5/8” (16 mm) ODF M12 Plug CV5-HPV 802057 0.68 5/8” (16 mm) ODF 7/8” (22 mm) ODF CV6-HPV 802058 1.57 7/8” (22 mm) ODF 1-1/8” ODF CV7-HPV 5.58 1-1/8” ODF 1-1/8” ODF Note1: The valves are delivered without cable/connector assembly (order separately). Cable and connector assembly Emerson driver / controller to drive CV valves Type Part No. Length (m) Temperature Range Connector type to valve Connector type to driver board or controller Illustration EXV-M15 804663 1.5 -50...+80°C M12 Loose wires EXV-M30 804664 3.0 EXV-M60 804665 6.0 Type Function Analogue signal input Remark EXD-U02 for one valve Slave 0-10VDC or 4-20 mA signal from master controller Refer to technical bulletin of EXD-U02 EXD-SH1 for one valve Superheat or temperature controller Pressure transmitter and temperature sensor Refer to technical bulletin of EXD-SH1/2 EXD-SH2 for two valves Third party driver/controller See page 4 for requirements 23PDF Image | CO2 Product Guide 2021
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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