Poppet valve ZB-25, 1" thread, 12V coil

Safety valve in gas installations

The mushroom valve ZB-25 is a key element of safety systems in low-pressure gas installations. It serves to immediately cut off the gas supply in the event of its presence in a dangerous concentration, working with gas detectors. Its design allows for manual opening and electrical or manual closing, providing versatility of application.

This valve is widely used in gas boiler rooms, residential buildings and other installations where safety is a priority. It can also function as a manual shut-off valve, providing an additional layer of protection.

Construction and principle of operation

The mushroom valve ZB-25 is characterized by a simple but reliable design. Under normal operating conditions, it remains open, allowing free flow of gas. When receiving an electrical impulse (12V=) from the gas detection system, the valve closes instantly, cutting off the fuel supply. Importantly, the valve does not require a constant power supply – it only needs electrical energy to close (an impulse lasting less than 1 second). This makes it energy-efficient and resistant to momentary voltage drops in the network.

The applied mesh filter protects the valve against contamination, extending its service life and ensuring reliable operation for a long time. Made of solid materials, the valve is resistant to mechanical damage and ensures safe operation.

Key features and benefits

• Fast action: Immediate cut-off of gas supply in the event of a hazard minimizes the risk of explosion or poisoning.
• Energy saving: No need for constant power supply reduces operating costs and increases system reliability.
• Reliability: Simple design and high quality workmanship guarantee long-lasting and trouble-free operation.
• Versatility: Manual opening and impulse or manual closing allows the valve to be adapted to different installation needs.
• Safety: Resistance to interference and accidental opening ensures a high level of safety.
• Compliance with standards: Meets the requirements of PN-EN161 standard, which confirms its safety and quality.
• Easy installation: 1" threaded connection facilitates integration of the valve with the existing gas installation.
• Dimensions: 115 x 145 x 80 mm – compact dimensions allow for installation in limited space.
• Max working pressure: 25 kPa (0.25 bar) - adapted to low-pressure installations.