OPT-B Electronic Timer Auto Drain

OLK OPT-B Electronic Timer Auto Drain (Integrated Type) features a fixed installation orientation and is designed as a universal timed-drain valve. The valve body is made of high-quality brass. A built-in filter screen requires periodic cleaning to ensure service life.

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Product Description

OLK OPT-B Electronic Timer Auto Drain supports both electric control and manual shutoff as dual protection; an external manual shutoff switch is reserved on the valve body to prevent flow during power failure. The inlet is located on the side away from the coil, the middle port without threads is the drain outlet, and the final port is the outlet.

Type A (separated design) and Type B (integrated design) share the same functions and differ only in installation structure. Both are suitable for air compressors, air dryers, and refrigerated dryers.

OPT-B Electronic Timer Auto Drain Characteristics

Timed Drainage

Built-in Filter Screen

Manual Shut-off for Double Safety

G1/2≈20MM

Jointed Design

Ordering code
OPT	-	A
Model.		Description
2/2way OPT electronic auto drain valve		A:separate
		B:jointed

Item	OPT-A / OPT-B
Interval Time (OFF)	0.5–45 minutes
Drain Time (ON)	0.5–10 seconds
Manual Test Button	Available, micro switch
Power Supply Voltage	24–240V AC/DC 50/60Hz (AC380V optional on request)
Current Consumption	Max. 4 mA
Ambient Temperature	-40°C to +60°C
Protection Class	IP65 (when correctly installed)
Enclosure Material	Flame-retardant ABS plastic
Electrical Connection	DIN43650A
Indicator Light	LED indicator for ON/OFF

Item	OPT-A	OPT-B
Type	2/2 Way Direct Acting Valve
Inlet/Outlet Port Size	G1/2(≈20mm)	Inlet: G1/2 male, Outlet: G1/2 female (≈20mm)
Weight	506g	440g

Max. Working Pressure	1.0 MPa
Min/Max Ambient Temp.	2°C / 55°C
Max. Medium Temperature	90°C
Valve Body Material	Brass (Stainless steel version available upon request)	Brass
Insulation	Class H
Protection Class	IP65 (when correctly installed)
Voltage	DC24V, AC220V
Voltage Tolerance	±10%