Shenzhen Skoocom Electronic Co.,Ltd is one of the leading manufacturers and suppliers of SC0520IVG Normally Open Micro Solenoid Air Valve in China. We provide high quality products for medical devices and beauty appliance. Welcome to wholesale RoHS, REACH and ISO certified products made in China here and get quotation from our factory. Also, custom service and ODM service are available.
SC0520IVG 2-Way Normally Open Miniature Solenoid Air Valve (DC 3V / 3.7V / 6V / 12V)
Current Model: SC0520IVG | Old model: SC0526GK (Direct Drop-in Replacement)
Compact normally open (NO) electric air release valve engineered for robotic vacuum pressurized spray systems, automated water tanks, medical sphygmomanometers, and pneumatic massage apparatus requiring ≤3.0s instantaneous depressurization and 200,000-cycle endurance.
Built for Automated Depressurization & Anti-Drip Circuits
- Rapid ≤3.0s Exhaust Response: Quickly dumps residual air pressure from 300 mmHg to 15 mmHg in under 3 seconds (100cc tank), instantly preventing nozzle water dripping onto sensitive wood floors when the robot halts.
- Industrial-Grade 200,000-Cycle Durability: Engineered with high-grade magnetic cores and fatigue-resistant rubber seals, proven over 200,000 cycles (12s ON / 5s OFF) to match multi-year home appliance lifespans.
- Ultra-Miniature Envelope (20.1 × 15.0 × 13.0 mm): Thumb-sized body fits directly alongside air pump modules and manifold blocks inside ultra-thin robot chassis.
- Low-Power Lithium-Compatible Architecture: Operates at 3.0V, 3.7V, 6.0V, and 12.0V with current draw as low as 44.5 mA (12V) and 185 mA (3.7V), minimizing heat buildup inside enclosed plastic casings.
- High Airtightness Integrity (≤3 mmHg/min): Zero leakage under 350 mmHg working pressure when energized, ensuring stable positive-pressure misting without pressure bleed.
-
Technical Specifications
*Source: Verified from official Skoocom engineering drawing SC0520IVG (SC0526GK). Operating ambient: 0~50 °C, 75% RH. Dimensions follow standard engineering tolerances (±0.2mm to ±0.5mm).
| Parameter | DC 3.0V Spec | DC 3.7V Spec | DC 6.0V Spec | DC 12.0V Spec | Test Conditions & Remarks |
|---|---|---|---|---|---|
| Current Model | SC0520IVG | New generation standard product | |||
| Old Model Ref. | SC0526GK | Full dimensional & mounting backward compatibility | |||
| Valve Structure & Mode | 2-Way, Normally Opened (NO) | Vents unpowered; seals energized | |||
| Rated Operating Current | 237 mA | 185 mA | 93 mA | 44.5 mA | At nominal rated voltage |
| Coil DC Resistance | 11 Ω ± 10% | 20 Ω ± 10% | 65 Ω ± 10% | 89 Ω ± 10% | Measured at 20°C ambient |
| Max Working Pressure | 350 mmHg (~ 46.7 kPa / 6.77 Psi) | Holding pressure when energized closed | |||
| Exhaust Depressurization Time | ≤ 3.0 seconds | From 300 mmHg down to 15 mmHg in a 100cc tank | |||
| Airtightness (Leakage Rate) | ≤ 3 mmHg / min | From 300 mmHg in a 100cc tank | |||
| Insulation Class | Class A | High-reliability enameled copper winding | |||
| Operating Endurance Life | ≥ 200,000 cycles | Duty profile: 12s energized (ON), 5s vented (OFF) | |||
| Applicable Fluid Media | Clean Air / Pneumatic Gas | Not for direct liquid pumping | |||
| Overall Envelope Dimensions | 20.1 × 15.0 × 13.0 mm | Excluding port spigots and wire terminal | |||
| Port Nozzle Geometry | Front: ø3.0 ± 0.2mm (L: 7.2mm) | Rear: ø3.2 ± 0.2mm (L: 5.0mm) | Stepped outer diameter for tight silicone tube grip | |||
| Lead Wire Specification | Length: 150 ± 10 mm (Stripped & tinned: 3 ± 1 mm) | Flexible pre-soldered leads for direct board connection | |||
Application Focus: Preventing Leaks in Sweeping Robots & Pressurized Hardware
1. Sweeping Robot Pressurized Spray Tanks & Anti-Drip Venting
When autonomous mopping robots use a micro air pump to pressurize the water tank for micro-spray misting, a major engineering challenge is "residual pressure leakage" - when the robot stops, remaining air pressure in the tank continues forcing water droplets out of nozzles, damaging wooden floors. Integrating SC0520IVG as a normally-open vent solves this: when spraying stops, the valve de-energizes, opening within 3.0 seconds to exhaust all tank pressure to atmospheric levels instantly.
2. Anti-Siphoning Protection & Water Tank Refill
During robot docking or water refill cycles, SC0520IVG remains open to break hydraulic vacuum and prevent back-siphoning from dirty water trays into clean water conduits.
3. Cosmetic Instruments & Sphygmomanometers
Widely utilized in medical electronic blood pressure monitors and cosmetic air-massage devices to execute linear and rapid pressure exhaustion upon test completion.
Company introduction
Manufacturing Precision & Supply Chain Reliability
Founded in 1998, Shenzhen Skoocom Electronic Co., Ltd. is recognized as a National "Little Giant" enterprise by the Ministry of Industry and Information Technology. Over 26 years, we have supplied custom fluid and pneumatic control components to more than 1,500 global enterprises across smart home, healthcare, and industrial sectors.
50,000+ m²
Dual Production Hubs
Operating manufacturing facilities in Songshan Lake (Dongguan) and Zhong'an Industrial City (Zhaoqing), our 500+ workforce and automated assembly lines maintain an annual manufacturing capacity exceeding 50 million pump and valve units.
In-House Mold & Rubber Formulation
With 30+ precision injection centers and internal rubber vulcanization facilities, our in-house formulated EPDM and silicone sealing pads provide superior airtightness, temperature tolerance, and anti-aging properties across 200,000 cycles.
Strict Quality Compliance
Operating under ISO 9001 certified protocols, all components meet RoHS, REACH, and FDA standards. Every batch of SC0520IVG is 100% tested on automated test rigs for coil resistance, opening/closing response, and leak rates before shipment.
Our Certificate
Hot Tags: SC0520IVG Normally Open Micro Solenoid Air Valve manufacturers, suppliers, factory, customized, vacuum valve, 2 Way Valve, 2 way solenoid valve, air release valve, gas valve, quick exhaust valve
