Shut-off valve zGLO Fig. 215 DN20 PN16, gray cast iron EN-GJL-250, construction: 08, stem-to-bonnet connection – detachable screw, stem, bonnet, and body ring – stainless steel, bonnet seal – PTFE 215A020C08

Gate Valve – Reliable Flow Isolation

This cast iron gate valve GLO Fig. 215 is a robust solution for water, steam, and industrial process systems. Designed for operation in pipelines with diameter DN20 and pressure rating PN16, it ensures effective isolation of the medium. The gray cast iron body (EN-GJL-250) guarantees mechanical strength and corrosion resistance, while internal components made of stainless steel ensure long-term reliability.

Construction and Materials

The valve features a well-engineered design that enhances functionality and durability:

• Body: Made of gray cast iron EN-GJL-250 – a widely used material in valve manufacturing due to its mechanical strength and corrosion resistance.
• Stem, Disc, and Seat Ring: Manufactured from stainless steel, providing excellent corrosion resistance and extended service life for components in direct contact with the medium.
• Disc Seal: Utilizes PTFE (Teflon) – a material with low friction coefficient and high chemical resistance, ensuring tight sealing performance.
• Stem-to-Disc Connection: Detachable screw connection facilitates servicing and easy replacement of components when needed.

The valve complies with the Pressure Equipment Directive 97/23/EC and carries the CE marking for DN 32, confirming conformity with European safety standards. Testing and inspections were performed in accordance with EN 12266-1 to ensure high product quality. Flanges are machined in compliance with EN 1092-2 for body material group A, and the face-to-face dimension conforms to Series 1 per EN 558-1.

Applications

This valve is widely applicable across various systems:

• Hot, cold, and chilled water systems: Material versatility allows use under diverse temperature conditions.
• Steam systems: Certified for steam service (“For Steam” certification confirmed).
• Industrial processes: Corrosion resistance and high sealing performance make it ideal for demanding industrial applications.
• District heating and power generation: Reliable operation under demanding working conditions.

Additionally, the valve’s technical data is integrated into engineering software libraries such as Instal-therm, Instal-san, Audytor C.O. 3.8, and Audytor H2O 1.5, simplifying system design.