Eliminate unplanned downtime and slash procurement costs. Thriveon delivers precision-engineered normally closed solenoid valves that meet stringent CE, UL, and ATEX standards. Tailored for chemical, petrochemical, water treatment, and OEM applications across the USA, EU, and Middle East.
Global sourcing for industrial valves is fraught with hidden challenges. Engineering managers and procurement directors we speak with consistently face these costly issues:
The bottom line: You’re not just buying a valve — you’re buying reliability, safety, and peace of mind.
➡ See how Thriveon solves these problems ↓With over a decade of flow control engineering, our normally closed solenoid valve range is designed for the most demanding continuous-duty applications. We combine German-engineered coil technology with lean Chinese manufacturing to deliver valves that outperform industry benchmarks.
Our team provides unbiased technical guidance to match the valve type to your system pressure, flow rate, and media.
| Feature | Direct Acting NC Valve | Pilot Operated NC Valve |
|---|---|---|
| Operating Pressure | 0 – 10 bar (0 psi – 145 psi) | 0.5 – 40 bar (7.25 psi – 580 psi) |
| Orifice Size | Up to 6mm | Up to 50mm |
| Flow Rate (Kv) | 0.1 – 1.5 m³/h | 1.0 – 20 m³/h |
| Response Time | 10 – 30 ms | 50 – 150 ms |
| Best For | Low pressure, precise dosing, aggressive media | High flow, high pressure, water/air/oil |
| Certifications | CE, UL, RoHS | CE, UL, ATEX, RoHS |
normally open solenoid valve solenoid valve normally open solenoid valve
Our valves are currently deployed in over 2,500 plants across 14 countries, including the United States, Saudi Arabia, South Africa, and Italy.
“We replaced a major European brand with Thriveon’s NC solenoid valves. We cut our unit cost by 32% and the performance is identical — zero failures in the first 1,000 hours of operation. Their technical documentation was flawless.”
“Thriveon’s ability to customize the normally closed solenoid valve for our chemical dosing system was exceptional. They modified the seal material and voltage in just 7 days. True OEM partnership.”
“The logistics and communication are top-tier. We received our bulk order of 2-way NC valves in 18 days instead of the promised 25. Quality control documents were shared proactively. Highly recommend.”
“We’ve standardized all our low-pressure water treatment lines on Thriveon’s NC solenoid valves. The IP65 rating and coil reliability have virtually eliminated our field service callouts.”
A normally closed solenoid valve remains shut when de-energized. Flow is blocked until the coil is energized, which opens the valve. This is the default position for fail-safe systems (power loss = closed position). It is the most common configuration for industrial safety and process control.
Select based on: ① Media type (water, air, oil, gas, steam) → choose compatible seals (NBR, EPDM, FKM). ② Operating pressure range → direct acting for low pressure, pilot operated for high pressure. ③ Pipe size & connection (NPT, BSP, flanged). ④ Voltage & power consumption. ⑤ Certification requirements (CE, UL, ATEX). Our engineers can guide you through the selection in under 2 hours.
Standard models carry CE, RoHS, and ISO 9001:2025 certification. We also offer UL listed and ATEX Ex d IIC T6 certified variants for hazardous environments. All certifications are included with the shipping documents.
Standard samples are shipped within 48 hours via DHL/FedEx (3-5 days delivery to the US). Bulk production orders typically take 15-25 working days depending on quantity and customization level. We maintain a stock program for popular models (2-way brass NC valves, 1/4” to 2”).
Yes, we provide free samples to qualified B2B clients and OEMs. You pay only the shipping cost. This allows you to validate the performance, dimensions, and build quality before committing to volume pricing. Request your free sample here →
All normally closed solenoid valves from Thriveon carry a 24-month warranty against manufacturing defects (coil burnout, leakage, mechanical failure). We also offer a “no-quibble” return policy for any valve that does not meet its specified performance parameters within the first 90 days.
Absolutely. Our factory specializes in OEM/ODM production. We can customize port thread types (NPT, BSP, BSPT, flanged), coil voltages (12V, 24V, 110V, 220V, 380V, 440V), and seal materials. Minimum order quantity for full custom is typically 200 pcs, but we can do smaller batches for prototyping.
You can email our senior engineers directly at info@thriveonvalve.com or call +86-311-86935302. We typically respond within 4 hours during business hours (GMT+8). You can also fill out the contact form on our website: https://www.thriveonvalves.com/contactus.html
Don’t let unreliable valve supply chains put your next project at risk. Thousands of engineers have already switched to Thriveon for better quality, faster delivery, and real technical partnership.
📍 South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China
✉️ info@thriveonvalve.com | 📞 +86-311-86935302
Still searching for “normally closed solenoid valve supplier”? You’ve found your partner. Send a technical inquiry today →
Related Products
Call us on:
+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
