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The SITV Series is a compact and lightweight electro-pneumatic proportional valve engineered for precise, stepless output pressure regulation. Featuring ultra-low power consumption (below 4W) and seamless analog control, it provides highly efficient and reliable pressure monitoring for advanced HVAC equipment, industrial automation, and pneumatic systems.
Type :
1000 Type | 2000 Type | 3000 TypePressure Range :
0.1MPa{1.0kgf/cm²} | 0.5MPa{5.1kgf/cm²} | 0.9MPa{9.2kgf/cm²}Power Supply Voltage :
DC24V | DC12~15VInput Signal :
Current type: 0-20mA | Current type: 4-20 mA | Voltage type: DC 0-5 V | Voltage type: DC 0-10V | 4-point preset input | RS485 CommunicationMonitor Output :
Analog output: DC 1-5 V | Switch output · NPN output | Switch output · PNP output | Analog output: DC 4-20 mAConnection Port Size :
1/8(1000Type) | 1/4(1000、2000、3000Type) | 3/8(2000、3000Type) | 1/2(3000Type)Bracket Type :
Flat bracket | L-bracketCable fitting Type :
Without cable | Straight type 3 m | Right-angle type 3 mEngineered for demanding industrial environments, the SITV Series Electro-Pneumatic Proportional Valve delivers high-precision pneumatic control by translating electrical analog input signals into accurate, stepless output pressure. Built with an optimized internal structure, it significantly reduces energy consumption while maintaining rapid response times. Whether integrated into complex HVAC systems or precise industrial automation setups, this valve offers exceptional reliability, linearity, and repeatability, ensuring your equipment operates at peak efficiency.
Electrical proportional control enables seamless and highly accurate stepless output pressure regulation, replacing multi-step configurations.
Highly energy-efficient design, operating securely with power consumption below 4W (specifically for the communication type).
A lightweight, space-saving footprint matched with a protection structure equivalent to IP65, suitable for harsh industrial conditions.
| Model | SITV101□ | SITV103□ | SITV105□ | |
| SITV201□ | SITV203□ | SITV205□ | ||
| SITV301□ | SITV303□ | SITV305□ | ||
| Minimum supply pressure | Set pressure +0.1MPa | |||
| Maximum supply pressure | 0.2MPa | 1.0MPa | ||
| Set pressure | 0.005~0.1MPa | 0.005~0.5MPa | 0.005~0.9MPa | |
| Power supply | Voltage | DC24V±10%、DC12~15V | ||
| Current consumption |
Power supply DC 24 V: 0.12 A or less Power supply DC 12-15 V: 0.18 A or less |
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| Input signal | Current typeNote 1 | 4~20mA、0~20mA | ||
| Voltage type | DC0~5V、DC0~10V | |||
| Preset input | 16 points(common negative) | |||
| Input impedance | Analog output | 250 Ω or less | ||
| Voltage type | Approx.6.5KΩ | |||
| Preset input | Approx 4.7KΩ(24VDC)、Approx 2.0KΩ(12VDC) | |||
| Output signal note 2) |
Analog output | DC1~5V(Load impedance: 1 kΩ or more) 4-20mADC(Sink type)(Load impedance: 250 kΩ or less) |
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| Switch output | NPN open collector output: Max. 30 V, 80 mA NPN open collector output: Max. 80 mA |
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| Linearity | Within ±1% (Full Scale) | |||
| Hysteresis | Within 0.5% (Full Scale) | |||
| Repeatability | Within ±0.5% (Full Scale) | |||
| Sensitivity | Within 0.2% (Full Scale) | |||
| Temp. characteristic | Within ±0.12% (Full Scale)/°C | |||
| Output pressure indication ( Note 4) |
Accuracy | Within ±2% (Full Scale) ±1 digit | ||
| Minimum unit | MPa:0.001、kgf/cm²:0.01、bar0.01、psi:0.1 、kpa:1 | |||
| Ambient fluid temperature | 0~50°C(No condensation) | |||
| Protection structure | Equivalent to Ip65 | |||
| Mass | SITV10□□ | 250g | ||
| SITV20□□ | 350g | |||
| SITV30□□ | 645g | |||
| Note 1) 2-wire type 4~20mA is not available; power supply voltage (DC24V or DC12~15V) is required. Note 2) Either analog output or switch output can be selected. For switch output, either NPN output or PNP output can be selected. Note 3) The minimum unit for the pressure range of 0.9MPa is 1psi. Note 4) The above characteristics are limited to static conditions; if compressed air is consumed on the output side, the pressure will change. |
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| 1 | 1000 Type |
| 2 | 2000 Type |
| 3 | 3000 Type |
| 0 | DC24V |
| 1 | DC12~15V |
| 1 | 0.1MPa{1.0kgf/cm²} |
| 3 | 0.5MPa{5.1kgf/cm²} |
| 5 | 0.9MPa{9.2kgf/cm²} |
| 1 | Analog output: DC 1-5 V |
| 2 | Switch output · NPN output |
| 3 | Switch output · PNP output |
| 4 | Analog output: DC 4-20 mA |
| No mark | None |
| 0 | Current type: 4-20 mA |
| 1 | Current type: 0-20 mA |
| 2 | Voltage type: DC 0-5 V |
| 3 | Voltage type: DC 0-10V |
| 40 | 4-point preset input |
| RS | RS485 Communication |
| B | Flat bracket |
| C | L-bracket |
| 1 | 1/8(1000Type) |
| 2 | 1/4(1000、2000、3000Type) |
| 3 | 3/8(2000、3000Type) |
| 4 | 1/2(3000Type) |
| N | Without cable |
| S | Straight type, 3 m |
| L | Right-angle type, 3 m |
| Description | Product Model | |||
| SITV10□□ | SITV20□□ | SITV30□□ | ||
| Flat bracket assembly | SKT-1TV-F1 | SKT-1TV-F2 | ||
| L-bracket assembly | SKT-1TV-L1 | SKT-1TV-L2 | ||
| Cable fitting | Straight type, 3 m | XP-CA-434 | ||
| Right-angle type, 3 m | XP-CA-434L | |||
Please refer to the technical diagrams below for preset input control, wiring schematics, and exact mounting dimensions (Flat Bracket & L-Bracket available).
A: The maximum supply pressure varies by model. For SITV101, 201, and 301, it is 0.2MPa. For SITV103, 203, 303, 105, 205, and 305 models, the maximum supply pressure is 1.0MPa.
A: Yes, it is an excellent digital upgrade for traditional mechanical pressure gauges, offering advanced pipeline pressure monitoring and precise electronic control capabilities.
A: No, a 2-wire type 4~20mA is not available. A power supply voltage of either DC24V or DC12~15V is strictly required for operation.
The SITV Series is a compact and lightweight electro-pneumatic proportional valve engineered for precise, stepless output pressure regulation. Featuring ultra-low power consumption (below 4W) and seamless analog control, it provides highly efficient and reliable pressure monitoring for advanced HVAC equipment, industrial automation, and pneumatic systems.
