KIMAIR KET Series Electric Timer Auto Drain Valves

The KET Series is an intelligent automatic drain device integrating an electronic timer controller and a solenoid valve. It automatically drains accumulated condensate from compressed air systems at regular intervals based on flexibly settable drain duration and intervals, completely replacing inefficient and failure-prone manual drains, ensuring system dryness, and preventing equipment corrosion and water hammer damage. It is an essential component for standardization and automation of modern industrial air source systems.

Category：

Air Compressor Maintenance & Service Solutions

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| Product Details

Video Tutorial

KIMAIR KET Series Electric Timer Auto Drain Valves Principle Explanation Video

KIMAIR Core Advantages

Intelligent Timing Control

- Drain duration and interval independently adjustable (seconds to hours), adaptable to various conditions.
Long Life, High Reliability

- Industrial-grade solenoid valve and controller, waterproof and dustproof design, suitable for harsh environments.
Multiple Protection Functions

- Manual test button, power indicator, and motor protection for safe and easy operation.
High-Efficiency Drain Design

- Large orifice valve port, rapid discharge, strong anti-clogging ability.
Wide Compatibility

- Multiple voltage (AC/DC), connection size (NPT/G), and explosion-proof options.

Technical Parameters

model	KETA	KETB	KET-H40	KET-HT
Product features	Split type-(L-type)	Integrated type(line-trpe)	High pressure with ball valve strainer	Heating valve can prevent freezing in cold area
Timer cycle range (ON/OFF)	ON:0.5-10 Sec.OFF:0.5-45 Min.		ON:0.5-10 Sec.OFF:0.5-45 Min.	ON:0.5-10 Sec. F:0.5-45 Min.
Rated working pressure	0-1.6 Mpa		0-4.0 Mpa	0-1.6 Mpa
Discharge capacity at 0.8Mpa	~160 ml/s About 160 ml/s
Applicable media	Water、Oil-containing condensate		Water、Oil-containing condensate	Water、Oil-containing condensate
Temperature of medium	1-60℃		1-60℃	1-60℃
Temperature of ambient	1-60℃(Heating model is optional for sub-zero temperature		1-60℃	-40~60℃
Inlet/Outlet of ball valve strainer	Inlet:Male R1/2"、Female Rc1/4" Outlet:Male R1/2"、Rc1/4"Optional	/	Inlet:Male R1/2"+ Female G1/4" Outlet:Male R1/2"	Inlet:Male R1/2"+Female G1/4"Outlet:Male R1/2"
Inlet/Outlet of solenoid valve	Inlet;Female Rc1/2"、Rc1/4"Optional Outlet:Female Rc1/2"、Rc1/4"Optional	Inlet:Male R1/2" Outlet;Female Rc1/2"	Rc1/2"	Inlet:Female Rc1/2"Outlet:Female Rc1/2"
Type of discharge valve	Direct acting solenoid valve		Direct acting solenoid valve	Direct acting solenoid valve
Valve orilfice	3.2 mm		2.0 mm	3.0 mm
Front mesh strainer of discharge valve	Yes(Outer set)		Yes	Yes
Material of valve body	Brass		Brass	Brass
Manual function	Yes		Yes	Yes
Protective class	IP65(After correct assembling)		IP65(After correct assembling)	IP65(After correct assembling)
Supply voltage options	24-380 VAC/DC 50/60HZ Optional		24-380 VAC/DC 50/60Hz Optional	24VDC(100W)/110VAC(45W)/220VAC(80W)
Overall dimensions LWH(mm)	8690111	9290122	9494130	15094132
Net Weight	575 g	515g	830 g	1390 g

Application Scenarios

- Bottom of air receiver tanks: periodically drains accumulated condensate.

- Drain ports of filters, refrigerated dryers, desiccant dryers: automatically discharges separated liquids.

- Low points of pipelines and drain pits: solves water accumulation in low spots of systems.

- Any compressed air container or device requiring periodic drainage.

Customer Frequently Asked Questions (FAQ)

Q: What are the advantages of an electronic timed drain valve compared to float-type and differential pressure-type drains?

A: The core advantages of the KET electronic timer are its setting flexibility and wide adaptability: Float-type: relies on liquid level, prone to sticking, not suitable for dirty liquids; Differential pressure-type: relies on pressure changes, may not operate in stable pressure systems; Electronic timed (KET): unaffected by water quality and pressure fluctuations, can set optimal drain frequency based on experience, highest reliability, especially suitable for dusty, dirty environments.

Q: How should drain time and interval be set? What are the consequences of incorrect setting?

A: Setting principles: Drain time: should be sufficient to empty the water, plus 1-2 seconds, typically 2-10 seconds; Interval time: based on system condensate production. Shorter intervals in summer or humid environments (e.g., 5-10 minutes), longer intervals in winter or dry environments (e.g., 20-30 minutes). Consequences: intervals too long lead to water accumulation, damaging equipment; intervals too short or drain time too long lead to compressed air waste. It is recommended to observe and adjust after initial setup.

Why choose the KET Series?

Condensate management is the most basic yet most easily overlooked aspect of compressed air system maintenance. The KET Series provides the highest level of automated drainage reliability at a moderate cost, freeing personnel from tedious periodic manual draining, making it a cost-effective choice to eliminate systemic risks caused by water accumulation.