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Stiefel - Burner Gas Valve Parts, Components With Exceptional Reliability For Fuel Management

Burner gas valve parts from Stiefel are custom made to include precision solenoid coils, diaphragms, and pressure regulators crafted out of 316SS and PTFE as it obtains a resistance rate of 50 bar pressure. Stiefel parts are CE-certified, with leakage rates lower than 0.01 cc/min, practically null, while maintaining a 10 million cycle lifespan.
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Benefit of Stiefel’s Boiler Parts

Customizable Solutions For Various Boiler Uses

Tailor-made boiler part design, and operational needs Stiefel specializes in waste-to-energy plants with our hastelloy narrowly sealed valves for corrosive toxic-flue gases dirty-ingesting boilers makes them last 3 years instead of 6 months. In commercial kitchens, our compact solenoid valves 1.5” NPT ports with quick-connect terminals save thirty percent of time during installation in retrofits for older versions of the equipment. A global resort order exemplifies the use of our dual-voltage control modules 24V DC/230V AC as it seamlessly integrates local controls for solar power and grid control with local wiring alongside the boiler system.

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Key to valve effectiveness, our solenoid coils employs high temperature coil enameling (Class H insulation) ensures it withstands 200°C, while the metal-to-metal seated discs maintain bubble-tight sealing. For a german boiler manufacturer, our replacement valve kits precision machined seats Ra≤0.4μm which reduced leakage incidents by 95%. Modular design permits individual components like seals or springs to be replaced without replacing the entire valve increasing maintenance cost efficiency by 40%.

Frequently Asked Questions

How does Stiefel ensure the longevity of its boiler parts in high temperature surroundings?

Using super alloys like Inconel and tungsten carbide as well as ceramic coatings guarantees protection in parts subjected to extreme conditions. Our spiral finned heat exchanger tubes, which also have ceramic coatings, resist sulfuric acid corrosion in high-sulfur gas boilers, sustaining 92% thermal efficiency for over a decade in a UK power plant. Platinum-rhodium tipped ignition electrodes endure over 10,000 cycles at 1,400°C, three times better than standard stainless steel electrodes in industrial furnaces.

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customer evaluation

James Brown
Tailored Methods for our Agriculture Waste Boiler Project

Stiefel Procured Agro-Waste Boilers Parts I Required. Tungsten Carbide Nozzles and corrosion resistant valves withstood replacement, abrasive particles and extreme temperatures for over two years. From project qualification to completion, each step firmly met the deadline because the team’s material selection skill and prototyping speed remained unmatched.

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Advanced Material Engineering Accomplishments

Advanced Material Engineering Accomplishments

The work done to lengthen the life of materials can be seen in silicon carbide ignition transformers (resistive to ceramic 1400 degrees C) along with PEEK-sealed valves (peeking inert to aggressive fuels). As one of our customer’s refineries in Mexico noted, the value in maintenance with increased intervals and lower replacement costs of 45% annually, was indisputable.
International Certification and Compliance

International Certification and Compliance

Our piston boiler parts are certified to CE, ATEX, UL, and CSA standards guaranteeing utilization in regulated markets globally. Take for instance, our explosion proof solenoid valves (EEx d IIC T6) certified for Zone 1 hazardous areas that allow installation in LPG turbines operating in the boilers both in Europe and North America.
Predictive Maintenance Supported by Data

Predictive Maintenance Supported by Data

Thanks to our internet capable appliances (e.g. sensors located at the actuators and valves), clients are provided with continuous reports on the condition of components. A client operating a dairy product manufacturing plant based in The Netherlands was able to analyze data to foresee nozzle replacement on a scheduled basis, which helped reduce unplanned outages by 35% while optimizing their maintenance spending.