KLD20T Modulating Metal Electric Ball Valve

The KLD20T series motorized ball valve is equipped with a modulating actuator that supports control signals such as 4–20mA and 0–10V for precise flow regulation. An optional power-off return function is available. Featuring a compact design with multiple small-bore size options, the valve is CE and ISO9001 certified, ideal for automation and flow control applications.

Brand:	KLD Kailida
Valve Type:	20T Series Motorized Ball Valve (Modulating)
Size:	1/4" to 1"
Voltage:	Optional: DC 12V, DC 24V, AC 220V
Control Signal:	4–20mA
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 version: ≤85% RH (non-condensing)

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Ball Valves

Ball valves control flow by rotating a ball with a bore to open or close the passage. A 90° turn enables quick, intuitive operation. The tight seal between the ball and seat ensures zero or minimal leakage. With a full-bore design, fluid flows through with minimal pressure loss. Compact and space-saving, ball valves are ideal for tight installations, modular systems, and applications requiring reliable shutoff or emergency isolation.

20T Modulating Electric Actuator

This series features modulating electric ball valves supporting 4–20mA and 0–10V analog control signals. Equipped with a precision positioning mechanism, it enables flow regulation with up to 1% accuracy.
Compatible with a wide voltage range from DC 5V to AC 220V, the compact design fits tight installation spaces. Certified to CE and ISO 9001 standards, with insulation and dielectric strength tested for safe, stable operation.
Built-in position feedback is available via potentiometer or digital signal, simplifying system monitoring and integration.

20T Series with Metal Valve Body

Valve Body Materials: Nickel-plated brass, SS304, SS316L
Ball Materials: SS304, SS316L, PPO, specialized wear-resistant options
Suitable Media: Liquids and gases
Available Sizes: DN8 to DN20 (see valve specification table)

Handwheel Instructions

■ The manual function must be used with the power turned off.
■ Lift the manual button, then slowly turn the handwheel to the desired valve position.
■ In the indicator window, the red line on the pointer parallel to the pipeline indicates "open," while perpendicular indicates "closed."
■ After using the manual function, the manual button must be reset to allow proper operation of the electric function.

Applications

■ Industrial automation systems and instrumentation
■ Smart water-saving controllers and terminal devices
■ Environmental systems, low-volume flow control, water supply and treatment projects

No.	Part Name	Available Materials	Qty
1	Valve Body	Nickel-Plated Brass / 304 / 316L	1
2	Ball	304 / 316L / PPO / Wear-Resistant Special Ball	1
3	Valve Cap	Nickel-Plated Brass / 304 / 316L	1
4	Mounting Bracket	PA66	1
5	Screw	304	4
6	Window	Transparent PC	1
7	Handwheel	POM	1
8	Label	PC	1
9	Button	Rubber	3
10	LCD Screen	OLED	1
11	Top Cover	PC Alloy ※	1
12	Bottom Cover	PC Alloy ※	1
13	Cable Gland Nut	PA66	1

※ Note: PC materials have limited chemical resistance. Avoid direct or indirect contact with organic solvents such as toluene, xylene, ketones, dichloromethane, chloroform, and similar compounds during use.

20T Dual Female Thread Connection

Valve Type	Connection Type	Size	d	L1=L2	L	H	H1	H2	F	G1	Material	W (Kg)
Full Bore	Dual Female Thread	DN8	8	11	43	89.00	11.0	18.25	17	G1/4"	Cu / 304 / 316L	0.28
		DN10	10	11.5	50	92.00	12.5	19.75	20	G3/8"	Cu / 304 / 316L	0.30
		DN15	15	13	57	97.50	16.5	21.25	27	G1/2"	Cu / 304 / 316L	0.41
		DN20	20	16	70	106.75	21.5	25.75	32	G3/4"	Cu / 304 / 316L	0.56
Reduced Bore	Dual Female Thread	DN25	20	18	76	106.75	21.5	24.75	38	G1"	Cu / 304 / 316L	0.58

※1. Part dimension tolerances follow GB/T 1804-2000 grade m.
※2. Assembly tolerance: ±2 mm.
※3. Thread types such as NPT or G are available upon request. Please specify when ordering.
※4. For media temperatures between 100–120°C, a high-temperature bracket is required. Total height = H + 57 mm.
※5. For media temperatures between 120–150°C, a high-temperature bracket is required. Total height = H + 107 mm.
※Note:
1. Actual dimensions may vary slightly due to batch differences. Specifications subject to change without notice.
2. If installation space is limited or dimensional accuracy is critical, please consult our sales team.

Valve Body Specifications

20T Motorized Ball Valve	Full Bore Flow
Diagram
Size (DN)	8 / 10 / 15 / 20 / 25-20 (Reduced Bore)
Valve Body Material	Nickel-Plated Brass / 304 / 316L
Ball Material	304 / 316L / PPO / Wear-Resistant Special Ball
Stem Sealing	EPDM / NBR / FKM (Viton)
Connection Type	Dual Female Thread
Thread Standard	G / NPT (specify when ordering)
Media Temperature	0–100°C (Optional: 120°C / 150°C)
Media Pressure	1.0 MPa
Applicable Media	Liquids, Gases

Actuator Specifications

Actuator Parameters	DC12V	DC24V	AC220V
Voltage Range	DC10–15V	DC22–30V	AC95–265V DC100–300V
Max. Power Consumption	6W	4W	6W
Operating Current	≤500mA	≤270mA	≤20mA
Idle Current	Approx. 210mA	Approx. 110mA	≤10mA
Open State Idle Current	45 ± 3mA	35 ± 3mA	Approx. 1mA
Closed State Idle Current	30 ± 3mA	25 ± 3mA	Approx. 1mA
Fuse Rating	2A	2A	1A
Running Time	5 seconds
Electrical Interface	4× 0.3mm² cable (AC300V, 800mm length) for DC power 5× 0.1mm² cable (AC300V, 800mm length) for AC power
Ambient Temperature	-20°C < t < 45°C (customizable for other ranges) ※
Rated Torque	2 N·m
Rotation Angle	90 ± 2°
Noise Level	Max. 75 dB(A)
Position Indicator	Mechanical
Electrical Class	Class III (SELV)	Class III (SELV)	Class II (No PE)
Protection Rating	IP67
Optional Moisture-Proof Type	Type F (with dehumidifier heater, not IP67 rated)
Relative Humidity	≤ 85% RH (non-condensing)
Vibration/Shock	≤ 2g
Vibration Frequency	10–50Hz ≤ 1.0mm double amplitude (customizable)
Installation Orientation	Do not install with shaft pointing downward
Maintenance	Maintenance-free
Certification	CE

※ For operation at -40°C, preheat for 15–30 minutes before use.
※ For long-term use in cold environments, external heating is recommended. Heating can be removed once ambient temperature rises above -15°C.

Kv Value – Flow Characteristic Curve

In fluid control, the Kv value (flow coefficient) represents the flow rate of water (in m³/h) through a fully open valve at a pressure drop of 1 bar. A higher Kv value indicates greater flow capacity.
The KLD20T motorized ball valve series offers four types of ball structures and flow characteristics: Linear, PI, PV, and XV. Each ball type defines a different relationship between valve opening angle and flow rate — in other words, how much liquid flows with each degree of rotation. The following chart provides a comparison:

Kv Value Range Data

Kv Range	Linear	Approx. Equal Percentage
Kv Range	Linear	P Type							PV Type		XV Type
DN8	0.30–0.90										1.30
DN10	0.38–1.55	0.19	0.23	0.36	0.68				0.91	0.64	1.79
DN15	0.64–3.20	0.26	0.35	0.53	1.17	1.79			2.09	1.55	5.26
DN20	1.82–5.16				1.52	2.38	3.14		3.41		7.62
DN25	1.03–8.60				1.68	2.86	3.72	4.65	5.40		16.47

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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