Industrial Gas Burners & Solenoid Valves for Manufacturing Plants [Stiefel]

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Normally Closed Solenoid Valve by Stiefel - Safe Design for Looked-In Safety Applications

With rated 30 bar pressure and cycle life of 10 million life, Stiefel's NC hydraulic valves counter unauthorized gas emission in burners, boilers, and kilns, sustaining non-energized flow.
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Advantages of Stiefel’s Solenoid Valves

Versatile Compatibility with Global Standards

Our valves integrate with 24V DC/230V AC power, NC/NO functions, IP67/IP68 ratings, and more, ensuring global compatibility. They are CE, ATEX, UL, and CSA compliant, attesting to their safety within the EU, North America, and worldwide. Spanish LPG storage successfully applied our ATEX valves (Zone 1) in explosive settings, gaining 99.9% operational reliability with fail-safe spring-closed mechanisms. A UK food processing plant saved 40% in maintenance time by using valves with modular seals and coil designs which allow for servicing without shutting down the system.

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Safety features in Stiefel’s NC valves are ideal for applications needing a fail-safe shutdown. The spring-loaded diaphragms positively close off even in low-pressure systems, and the anti-stiction coatings on the armatures prevent post-inactivity sticking. Our NC valves achieved compliance with FDA gas control regulations and provided validation documentation to prove adherence to GMP for a pharmaceutical plant’s sterilization boilers. The valves’ fast opening speed of less than 80 ms ensures minimal delay during operation.

Frequently Asked Questions

Would Stiefel valves support renewable energy systems, like biogas?

From a renewable energy standpoint, yes. Our biogas valves come equipped with self-cleaning features to counter hydrogen sulfide and particulate's debris accumulation. For two years of continuous operation, a Swedish waste to energy plant’s biogas burners remains with our valves containing Hastelloy seats ensures leakage below the threshold of 0.005 cc/min. Projects supporting future facing energy blends up to (40%) hydrogen are supported with the adaptive design.

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Customer Feedback

Ana P,
Outstanding Service Related to Medical Valve Manufacture

We required sturdy valves with FDA compliance for our pharmaceutical filling lines and Stiefel provided meticulously crafted solutions with electropolished surfaces and zero-leak fittings. Validation support with onsite GMP certification enablement was critical for our certifiation. Team's work-stunning deadline of 6 weeks design to delivery.

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Advanced Material Sciences

Advanced Material Sciences

Stiefel’s commitment to material innovation is evident in components such as silicon carbide (1,400°C resistant) coils and ultra low friction DLC diamond-like carbon coatings. These materials provide 50% reduced wear in high-cycle applications for paint booth valves in German automotive plants which have performed for over 5million cycles.
Predictive Maintenance With IoT

Predictive Maintenance With IoT

Additional to our smart valves, sensors measure and monitor performance metrics such as temperature of coil, speed and leakage rate of actuation. A Dutch dairy plant used this information to accurately forecast seal replacements resulting in a 35% decrease in unplanned downtime and 20% optimization of maintenance expenditure.
Certification and Compliance on A Global Scale

Certification and Compliance on A Global Scale

Our valves soar many industry standards with CE, ATEX, UL, CSA and FDA certicates. Exemplified by our medical-grade valves in US hospitals oxygen systems and industrial valves complying with machine directive EU 2006/42/EC in manufacturing facilities worldwide.
STIEFEL(GUANGDONG) ENV. PROTECTION Ltd.

Stiefel provide one-stop solutions that range from design and manufacturing to installation and customization.

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