This electronic drain valve pairs a brass two-way solenoid valve with a solid-state timer, so condensate is dumped from a compressed air system automatically instead of by hand. It has 1/2 inch (DN15) connections, a normally closed body, a maximum working pressure of 1.6Mpa, and discharge and interval times you set yourself: ON for 0.5 to 10 seconds, OFF for 0.5 to 45 minutes.
Features and benefits:
- Adjustable timer: ON time 0.5 to 10 seconds and OFF time 0.5 to 45 minutes, set on the dials to suit how much condensate your system makes
- TEST button plus ON and OFF indicator lamps: check the valve opens and see the timer state without guessing
- Brass valve body with a filter screen inside: the screen can be cleaned regularly to extend service life
- Manual blue ball valve fitted outside the body: a second shut-off that can stop water or air leaking if the solenoid needs servicing
- IP65 protection and insulation class H: suited to damp compressor rooms and warm running
- 1/2 inch (DN15) inlet and drain connections: standard universal pipe size, direct acting two-position two-way design
- Choose 12V, 24V, 110V or 220V, and split-body or one-body layout: match the supply you already have and the space around the tank
Applications:
- Air receiver and compressor tank condensate draining
- Compressed air filters and oil-water separators
- Refrigerated and cold dryers
- Air cylinders and drip legs in compressed air lines
In the box:
Valve body, solenoid coil, timer, plug connector and manual ball valve.
Note: Connect the coil only to the voltage you selected (voltage tolerance is ±10%) and isolate the supply before wiring or fitting. Maximum working pressure is 1.6Mpa and ambient range is -40°C to 60°C. Fit it to a drain point that is safe for the discharge to run to.
Product type: Electronic drain valve, solenoid with solid-state timer. Model codes: OPT-A (split body), OPT-B (one body). Valve type: Two-position two-way, direct acting. Normal state: Normally closed. Connection size: 1/2 inch (DN15), inlet and drain. Connection form: Thread. Body material: Brass. Maximum working pressure: 1.6Mpa. Suitable media: Water and gas (compressed air condensate). Discharge time (ON): 0.5 to 10 seconds. Interval time (OFF): 0.5 to 45 minutes. Supply voltage options: 12V, 24V, 110V or 220V (choose in options). Voltage tolerance: ±10%. Protection grade: IP65. Insulation class: H. Ambient temperature: -40°C to 60°C. Timer ON settings: 0.5, 2, 4, 6, 8 and 10 seconds. Timer OFF settings: 0.5, 9, 18, 27, 36 and 45 minutes. Timer controls: TEST button, ON and OFF indicator lamps. Maximum medium temperature: 90 (unit not stated by the seller). Coil rating (one-body type): 230VAC, 50/60Hz, 20W, 100% ED. Split body dimensions: 77, 90, 110, 44 and 25mm as shown on the drawing. One-body dimensions: 40, 130, 88 and 27mm as shown on the drawing. Internal filter: Filter screen in the valve body, can be cleaned. Manual override: Blue ball valve outside the body. Package contents: Valve body, solenoid coil, timer, plug connector, manual ball valve. Q: What does an automatic drain valve do on an air compressor? A: It opens a drain on a timer so water that collects in the tank, filter or dryer is released without you opening a drain cock by hand. This one opens for 0.5 to 10 seconds at intervals of 0.5 to 45 minutes.. Q: How do I set the drain time and interval on this valve? A: The timer has dials marked for ON time in seconds (0.5, 2, 4, 6, 8, 10) and OFF time in minutes (0.5, 9, 18, 27, 36, 45). Pick the settings that clear your condensate, and use the TEST button to confirm it opens.. Q: What is the difference between the split-body and one-body type? A: The split-body type (OPT-A) and one-body type (OPT-B) both have 1/2 inch (DN15) connections and the same timer, but the layout and dimensions differ. Compare the drawing dimensions to see which fits your pipework.. Q: Is this a normally closed solenoid drain valve? A: Yes, it is a normally closed two-way direct acting valve, so it stays shut until the timer opens it for the set discharge time.. Q: Can I use it to drain a compressed air dryer or oil-water separator? A: The valve is listed for filters, oil-water separators, refrigerated dryers, air compressors, air cylinders and drip legs in compressed air systems..