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Description
The Normal On/Off 2‑Way Plastic Motorized Ball Valve from the KLD30S/SJ Series features CPVC or PVDF construction for superior corrosion resistance. The valve body, bonnet, and ball are all plastic, providing resistance to acids, alkalis, and aggressive chemicals. The valve works well in ClO2 and O3 systems. Two variants are available: the 30S has a manual override, and the 30SJ without. Double unions allow quick installation and removal. The actuator produces 3N·m torque. Protection is IP67. The actuator can be upgraded to a service life of up to 500,000 cycles. Manufactured under an ISO 9001 quality management system.
Technical specifications
Valve Type: 2-Way Plastic Motorized Ball Valve with Double Unions
Sizes: DN15, DN20
Pressure: Maximum 1.0 MPa (PN10)
Flow: Varies with valve size and application
Medium Temperature: 0–90°C
Ambient Temperature: -20°C to 45°C
This valve handles corrosive media. It replaces conventional solenoid valves in harsh chemical environments. Applications include water treatment, acid/alkali systems, chlorine dioxide and ozone systems. It fits small equipment and industrial automation. Liquid and gas media are both supported. The compact plastic design suits tight spaces where metal valves corrode.
Applications
Used for corrosive medium such as acids and alkalis,etc.
Replaces conventional solenoid valves, especially where they cannot work reliably.
Environmental protection, water supply & drainage, water treatment
Industrial automation and other small equipment
Excellent in ClO2, O3 Systems
Wirings & Electrical Parameters Table
Without Manual Override 【30SJ】
| Wiring | Nominal Voltage | Voltage Range | Max. Power | Operating Current | Quiescent Current | External Fuse ※1 | |
| B3(S) BD3(S) | DC5V | DC4-8V | 4W | ≤55mA | 15±5mA | 2A | |
| DC12V | DC10-15V | 4W | ≤30mA | 15±5mA | 1A | ||
| DC24V | DC20-28V | 4W | ≤40mA | 10±5mA | 1A | ||
| AC220V | AC95-265V | 7W | ≤10mA | 10±5mA | 1A | ||
| KT2(S) KT32(S) | DC5V | DC4-8V | 7W | ≤1.1A | 20±5mA | 3A | |
| DC12V | DC10-15V | 10W | ≤835mA | 20±5mA | 2A | ||
| DC24V | DC20-28V | 10W | ≤420mA | 20±5mA | 1A | ||
| AC220V | AC95-265V | 15W | ≤70mA | 10±5mA | 1A | ||
With Manual Override 【30S】
| Wiring | Nominal Voltage | Voltage Range | Max. Power | Operating Current | Quiescent Current | External Fuse ※1 | |
B2(S/J) B3(S/J) BD3(S/J) B33(J) B43.B44 | DC12V | DC10-15V | 8W | ≤120mA | 70±5mA | 2A | |
| AC/DC24V | AC16-30V | 7W | ≤100mA | 40±5mA | 1A | ||
| DC16-40V | |||||||
B3(J) BD3(J) B33(J) | AC220V | AC95-265V | 10W | ≤25mA | 10±5mA | 1A | |
KT2(S/J) KT32(S/J) | DC12V | DC10-15V | 10W | ≤920mA | 35±5mA | 2A | |
| AC/DC24V | AC12-30V | 12W | ≤520mA | 35±5mA | 2A | ||
| DC12-40V | |||||||
KT2(J) KT32(J) | AC220V | AC95-265V | 19W | ≤90mA | 20±5mA | 1A | |
High-speed
| Wiring | Nominal Voltage | Voltage Range | Max. Power | Operating Current | Quiescent Current | External Fuse ※1 | |
B3(J) BD3(J | DC24V | DC20-26V | 12W | ≤300mA | 15±5mA | 2A | |
KT2(J) KT32(J) | DC24V | DC20-26V | 25W | ≤1.05A | 25±5mA | 3A | |
※1 External fast-blow fuse specifications: Rated current ≥ 2-5 times the Max. nominal current of a single motorized valve.For multiple valves connected in parallel, the fuse rating should be increased according to actual requirements.
Notes: For the Fail-Safe function, please select the KT series control. The parameters listed above are standard.For more details, please consult our sales personnel.
Main Components Diagram

Main Components
| No. | Part | Material | Qty |
| 1 | Ball | CPVC / PVDF | 1 |
| 2 | Body | CPVC / PVDF | 1 |
| 3 | Nut | CPVC / PVDF | 2 |
| 4 | Union | CPVC / PVDF | 2 |
| 5 | Ball seat ※2 | PTFE | 2 |
| 6 | Mounting bracket | PA66 | 1 |
| 7 | Stem | CPVC | 1 |
| 8 | Label | PC | 1 |
| 9 | Handwheel ※3 | POM | 1 |
| 10 | Sight window | Transparent PC | 1 |
| 11 | Top cover | PC alloy ※4 | 1 |
| 12 | Screw | 304 | 4 |
| 13 | Bottom cover | PC alloy ※4 | 1 |
| 14 | Stem seal | EPDM/NBR/FPM ※5 | 1 |
| *1 | Cable gland lock nut | PA66 | 1 |
※2 For gaseous media, wear-resistant PTFE is recommended.
※3 30SJ series without handwheel.
※4 Avoid direct or indirect contact between PC and organic solvents such as toluene, xylene,ketones, dichloromethane, trichloromethane, and chloroform etc., due to corrosion resistance characteristics of PC materials.
※5 Other materials are customizable.
| Dimensions-30S 【DN15-DN20】 | Dimensions-30SJ 【DN15-DN20】 |
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Dimensions (mm)
| Body type | DN | d | G1 | L1=L2 | L3 | L | H | H1 | H2 | F | W(kg) | |||
| Thread | Socket | Thread | Socket | 30S | 30SJ | |||||||||
| Reduced bore 2-way | DN15 | 14 | G1/2" or NPT 1/2" | 20.3 (external diameter) | 18 | 18 | 50.5 | 102.5 | 111.5 | 108 | 23 | 23 | 46 | - |
| DN20 | 14 | G3/4" or NPT 3/4” | 25.3 (external diameter) | 18 | 18 | 50.5 | 102.5 | 111.5 | 108 | 23 | 23 | 46 | - | |
Note:
1. Part dimension tolerances are in accordance with GB/T 1804-2000, Class m.
2. Assembly tolerance: ±2 mm.
3. Optional port threads: NPT, G, etc. Please specify when ordering.
Attention:
1. Due to batch-to-batch variations, data may be subject to minor changes. The physical product shall prevail. We reserve the right for modifications without prior notice!
2. For applications with limited installation space or strict dimensional requirements, please contact the relevant sales personnel.

Instructions for Manual Override
Manual operation must be performed with power off. Refer to the manual for details.
※Subject to technical changes