# OPT-A/B series electronic drain valves Date: 2026-07-18 Categories: Solenoid Valve URL: https://homipneu.com/opt-a-b-series-electronic-drain-valves.html ## Product Summary The OPT-A/B Series Electronic Drain Valve is designed for automatic condensate discharge in compressed air systems. With timer-controlled draining, adjustable OFF time from 0.5 to 45 minutes, adjustable ON time from 0.5 to 10 seconds, G1/2 connection options, IP65 protection, and LED ON/OFF indication, it is suitable for air compressors, air receivers, filters, dryers, separators, and compressed air pipelines. HOMIPNEU supports OEM & ODM supply for electronic drain valve projects. ### Specifications Valve OPT-A OPT-B Species 2/2-way direct-acting valve 2/2-way direct-acting valve Dimensions of inlet/outlet interface G1/2 Inlet: G1/2 male thread; Outlet: G1/2 female thread Max.working pressure 1.0MPa Min/Max.ambient temperature 2℃/55℃ Max.medium temperature 90℃ Valve body Brass / Stainless Steel Brass / Stainless Steel Insulation H Class Waterproof level IP65 Voltage DC24 , AC220V Timer OPT-A / OPT-B Interval time (OFF) 0.5–45 min Discharge time (ON) 0.5–10 s Manual test button Yes, micro switch Power supply voltage 24–240V AC/DC, 50/60Hz (AC 380V available by special order) Current consumption Max. 4 mA Environment temperature -40 to +60°C Waterproof level IP65 (when installed correctly) Shell material Flame-retardant ABS plastic Electrical connections DIN43650A Indicator light LED indicator, valve ON/OFF ### Dimensions ![OPT-A/B series electronic drain valves Dimensions](https://homipneu.com/wp-content/uploads/2026/07/20260718115415355558-900x481.webp) ### Product Features **Automatic Condensate Discharge** The OPT-A/B Series electronic drain valve is designed for automatic condensate discharge in compressed air systems. It helps remove water and condensate from air compressors, air tanks, filters, dryers, and pipeline equipment. **Timer Controlled Drain Operation** The drain interval and discharge time can be adjusted according to the condensate volume and system operating condition. OFF time can be set from 0.5 to 45 minutes, and ON time can be set from 0.5 to 10 seconds. **2/2-Way Direct-Acting Valve Structure** The valve uses a 2/2-way direct-acting structure for reliable open and close control during condensate discharge. It is suitable for regular automatic draining in compressed air systems. **G1/2 Connection Options** OPT-A uses a G1/2 interface, while OPT-B provides G1/2 male inlet and G1/2 female outlet connection. Customers can select the correct type according to installation layout and pipeline connection. **IP65 Protection and LED Indicator** The timer section supports IP65 protection when installed correctly and includes an LED indicator for valve ON/OFF status. This helps operators check working status during installation and maintenance. **Brass and Stainless Steel Valve Body Options** The valve body is available in brass and stainless steel options. The correct material should be selected according to condensate condition, working environment, pressure, and system requirements. **OEM and Distributor Supply Friendly** HOMIPNEU supports model confirmation, bulk orders, export packaging, and OEM supply for air compressor service providers, compressed air system distributors, equipment builders, and industrial automation customers. ### Applications **Air Compressor Systems** Used for automatic condensate discharge from air compressors, compressor outlets, compressed air tanks, and auxiliary air system equipment. **Air Receivers and Storage Tanks** Suitable for draining accumulated water and condensate from air receivers and storage tanks in compressed air systems. **Air Dryers and Filters** Applied to refrigerated dryers, adsorption dryers, water separators, filters, and other air treatment equipment where condensate must be discharged regularly. **Compressed Air Pipelines** Used at low points of compressed air pipelines where condensate collects and needs timed automatic discharge. **OEM Equipment and Maintenance Replacement** Suitable for compressor manufacturers, compressed air system builders, spare parts programs, distributor stock, and maintenance replacement projects. ### Why Choose HOMIPNEU HOMIPNEU supplies electronic drain valves, pneumatic solenoid valves, fluid control valves, air source treatment components, pneumatic fittings, cylinders, air hoses, air preparation units, and related compressed air components for industrial automation. We help customers confirm model details before ordering, including valve type, inlet and outlet connection, voltage, pressure range, condensate volume, discharge interval, installation direction, and power supply requirements. For OEM customers and distributors, HOMIPNEU can provide bulk supply, private label packaging, export cartons, and stable sourcing support for electronic drain valve and compressed air component projects. ### FAQ **What is the OPT-A/B Series electronic drain valve used for?** The OPT-A/B Series electronic drain valve is used for automatic condensate discharge in compressed air systems, including air compressors, tanks, filters, dryers, separators, and pipelines. **How does an electronic drain valve work?** An electronic drain valve uses a timer to open and close the valve automatically. The interval time controls how often the valve drains, and the discharge time controls how long the valve stays open. **What is the difference between OPT-A and OPT-B?** OPT-A uses a G1/2 interface, while OPT-B uses a G1/2 male inlet and G1/2 female outlet connection. The correct type should be selected according to the installation layout. **Can the drain interval be adjusted?** Yes. The timer interval time can be adjusted from 0.5 to 45 minutes, and the discharge time can be adjusted from 0.5 to 10 seconds. **What voltage options are available?** The valve section supports DC24V and AC220V options. The timer power supply supports 24–240V AC/DC, 50/60Hz, with AC380V available by special order. **Is the electronic drain valve waterproof?** The product supports IP65 protection when installed correctly. Proper installation, cable connection, and sealing are important for reliable operation. **Where should this drain valve be installed?** It can be installed on air compressor systems, air receivers, filters, dryers, separators, and low points of compressed air pipelines where condensate collects. **What should be confirmed before ordering?** Please confirm the model, inlet and outlet connection, voltage, pressure, condensate volume, discharge interval, discharge time, installation direction, cable connection, and order quantity.