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KLD20S 2-way Motorized Ball Valve

KLD 20S Series Electric Ball Valve, rated for up to 70,000 cycles. Compact design with multiple small-diameter options. CE and ISO 9001 certified. Optional handwheel operation available.

Brand: KLD
Valve Type: 20S Series Electric Ball Valve
Size: 1/4 ～ 1-1/4"
Voltage: DC 5V, DC 12V, AV/DC 5V, AC 220V, DC 24V optional
Media Pressure: Up to 1.0 MPa (PN10)
Media Temperature: 0°C to 100°C
Ambient Temperature: -20°C to 45°C
Ambient Humidity: IP67 type – ≤85% RH (non-condensing)
Moisture-resistant type – >85% RH

Catalog Manual

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Ball Valve

Ball Valve

A ball valve controls flow by adjusting the opening of a spherical element. It forms a tight seal with the seat for zero or minimal leakage, and operates with a quick 90° turn. The full-bore design ensures low pressure loss, while its compact size suits space-constrained or modular systems. Ideal for tight shutoff and emergency stop applications.

20S Series Actuator

The 20S electric ball valve actuator supports a wide voltage range from DC 5V to AC 220V. Compact in size, it delivers up to 70,000 cycles with a fast 2-second open/close response. Certified with CE and ISO 9001, it passes insulation and dielectric tests to ensure safe, stable operation. Rated IP67 for water and dust protection, and available in a moisture-resistant version for humid or low-temperature environments. Features flexible wiring, easy installation, low noise, and maintenance-free performance.

20S Series Actuator
20S Series Metal Valve Body

20S Series Metal Valve Body

•Body Materials: Nickel-plated brass, 304 stainless steel, 316L stainless steel
•Ball Materials: 304, 316L, PPO
•Seal Materials: EPDM, NBR, FKM
•Applicable Media: Liquids and gases
•Size Range: Refer to valve specifications; available from DN8 to DN32

Multiple Valve Body Designs and Connection Types

The 20S series offers various ball valve body structures and connection options:
• Flow Configurations: 2-way (straight-through), 3-way
• Connection Types: Female thread, male thread
• Bore Types: Full bore, reduced bore

Multiple Valve Body Designs and Connection Types
Optional Handwheel

Optional Handwheel

The actuator comes in two versions: handwheel (S) for manual override, and non-handwheel (SJ) for fully automatic electric operation.
■ Handwheel Operation Instructions 
1. Manual operation must be performed with power off. To operate, lift the manual override button and slowly turn the handwheel to the desired valve position.  
2. In the indicator window, the red line parallel to the pipeline indicates "open", while perpendicular indicates "closed."

Applications

■ Industrial automation equipment and instrumentation
■ Smart water-saving controllers and system actuators
■ Environmental protection, low flow rate, water supply and drainage, and water treatment projects

Applications
No. Part Name Optional Materials
1 Valve Body Nickel-plated Brass / 304 / 316L
2 Ball 304 / 316L / PPO / Special Wear-Resistant Ball
3 Valve Cover Nickel-plated Brass / 304 / 316L
4 Stem Brass / 304 / 316L
5 Ball Seat ※1 PTFE
6 Valve Cover O-ring EPDM / NBR / FKM ※2
7 Stem O-ring EPDM / NBR / FKM ※2
8 Mounting Bracket PA66
9 Coupling 304
10 Window Transparent PC
11 Handwheel ※3 POM
12 Label PC
13 Upper Cover PC Alloy ※4
14 Cable Gland Nut PA66
15 Lower Cover PC Alloy ※4
Valve Type Connection Type Port Size d L1 = L2 L H
20S		 H1 H2 F G1 Material W (Kg)
Full Bore Double Female Thread DN8 8.00 11.00 43.00 89.00 11.00 18.25 17.00 G1/4" Cu / 304 / 316L 0.25
DN10 10.00 11.50 50.00 92.00 12.50 19.75 20.00 G3/8" 304 / 316L 0.28
Valve Type Connection Type Port Size d L1 = L2 L H
20S		 H1 H2 F G1 Material W (Kg)
Full Bore Double Female Thread DN15 15.00 13.00 57.00 97.50 16.50 21.25 27.00 G1/2" Cu / 304 / 316L 0.38
DN20 20.00 16.00 70.00 107.00 21.50 25.75 32.00 G3/4" Cu / 304 / 316L 0.54

Note: 1. Thread type options include NPT and G. Please specify when ordering.
2. For medium temperatures between 100°C and 120°C, a high-temperature bracket is required. Total product height = H + 57 mm.
3. For medium temperatures between 120°C and 150°C, a high-temperature bracket is required. Total product height = H + 107 mm.

Working Conditions
Ambient Temp -20℃ to 45℃
Ambient Humidity Relative humidity ≤ 85% (non-condensing) — Applicable to IP67 model
Relative humidity > 85% — Applicable to moisture-proof model
Medium Temp 0-100℃
Medium Pressure ≤ 1.0 MPa
Note: If the controller features a timed power-off function, it is recommended to set a delay of 10 seconds when controlling the valve. This prevents premature power-off before the valve has fully opened or closed due to environmental or usage-related issues.
※1 Opening/closing time may vary slightly depending on the valve body and control voltage.
※2 Only DC24V version supports 2-second customization.
※3 This value is obtained from laboratory tests. Actual results may vary based on usage conditions.
※4 For moisture-proof models, ensure the drain hole faces downward during installation. Remove the sealing cap before use. (Power must not be cut off when valve is in position.)

Functional Parameters

 
Operating Time 5s/90° (standard) ※1, 2s/90° (customized) ※2
Rotation Angle 90° ± 2°
Service Life Rated 70,000 cycles ※3
Protection Rating IP67, F type (moisture-proof model with dehumidifying heater)
Manual Operation Available on 20S, not available on 20SJ
Indicator Window Indicator Window
Note: 1. For medium temperatures exceeding 100°C, a high-temperature bracket model is required.
2. For medium pressures exceeding 1.0 MPa, customization is required.
3. The electric valve must be used according to contract specifications and requirements. For applications involving personal injury or significant property damage risks, appropriate emergency safety measures must be in place.

About KLD

KLD is an innovative high-tech company dedicated to the development and manufacturing of electric actuators and motorized valves. Backed by a strong team of professionals in R&D, management, and sales, we hold over 80 proprietary patents and software copyrights, including three protected under the PCT international system. Our operations strictly comply with ISO9000 standards, and our products are certified by CE as well as other regulatory bodies across North America and the EU. With a focus on cutting-edge design, reliable functionality, and exceptional quality, KLD has earned the trust of clients worldwide and proudly exports to over 50 countries.

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