Check valve zGLO Fig. 215C, DN200 PN25, construction 41: loose mushroom without spring, stem, mushroom, and shell body – stainless steel. Body – ductile iron. 215C200D41

Check Valve – Reliable Protection and Flow Control

The check valve ZGLO Fig. 215C is a versatile device combining the functions of backflow prevention and complete system shut-off. It is a critical component in systems requiring guaranteed operation and protection against undesirable medium reversal. The valve’s design stands out for its precision manufacturing and durability, ensuring long-term, trouble-free operation.

Check valves differ from standard shut-off valves by their characteristic cylindrical stem bushing, which facilitates installation and maintenance. The appropriate design selection depends on the specific application and material requirements.

Construction and Materials – Guarantee of Durability

This specific model, designated as 215C200D41, features a nominal diameter DN200 and nominal pressure PN25. Designation 41 indicates a spring-free floating disc, ensuring smooth operation and minimizing the risk of mechanical damage. Key components—the stem, disc, and body ring—are made of stainless steel, guaranteeing resistance to corrosion and aggressive media. The valve body is manufactured from ductile cast iron, providing high resistance to pressure and hydraulic shocks.

• Ductile cast iron body: Offers superior mechanical strength and corrosion resistance compared to traditional gray cast iron.
• Internal components made of stainless steel: Ensure long-term reliability under various operating conditions, even with aggressive media.
• Spring-free floating disc: Enables smooth opening and closing of the valve while reducing the risk of damage caused by sudden pressure surges.
• Flanged connection: Allows easy installation and removal in existing systems.

Applications and Compliance with Standards

This valve finds wide application across various industrial sectors, including:

• Water and wastewater systems: Protection against backflow of potable water or sewage.
• Chemical industry: Control of flow for chemicals with varying levels of aggressiveness.
• Power generation: Protection of boiler and heating systems against reverse flow of heating medium.
• Food industry: Control of food-grade fluid flow in compliance with sanitary requirements.

The valve complies with PN25 standards, ensuring safe operation in installations with elevated working pressure. Thanks to the use of high-quality materials, the valve is resistant to corrosion and mechanical damage, guaranteeing long-term reliability.