Fire hydrant valve 52, type ZH-52, aluminum, with aluminum cap, mark B S-AA-ZH52-NA-B

Fire hydrant valve – a reliable element of the fire protection system

The ZH-52 type fire hydrant valve is a key element of fire protection infrastructure, designed for drawing water from water supply systems to extinguish fires. It is an indispensable component in both internal and external hydrants, providing quick and effective access to water in emergency situations. The valve design allows for installation in a metal housing secured with a lock (opened with an axe beak) or directly on the installation, depending on needs and safety requirements.

Construction and application

The ZH-52 valve is made of durable materials – the body, head and handle are aluminum castings from AK11 alloy, and the spindle is made of MO58 brass. This selection of materials guarantees corrosion resistance and long-term reliability even in difficult operating conditions. Equipped with an aluminum nozzle, the valve allows for direct connection of a 52 mm diameter delivery hose, which significantly speeds up the process of starting firefighting operations.

The valve is used in:

• Internal hydrants – as a basic equipment providing access to water in buildings.
• External hydrants – as a water intake point for the fire brigade.
• Fire protection water supply systems – as an element of a system ensuring effective fire protection.

Key features and benefits

• Durable construction: AK11 aluminum castings and MO58 brass provide resistance to mechanical damage and corrosion.
• Fast operation: Trapezoidal thread with a large pitch in the spindle allows for quick opening and closing of the valve, which is crucial during firefighting operations.
• Compliance with standards: The valve has a CNBOP approval certificate No. 1646/2013, confirming its compliance with applicable safety standards.
• Easy installation: The 52 nozzle according to PN-91/M-51038 facilitates the connection of standard fire hoses.
• Safe use: The ability to secure the valve in a metal housing with a lock protects against unauthorized access and damage.
• Operating parameters: Working pressure of 1.2 MPa (16 bar) and nominal diameter of 25 mm guarantee effective operation in typical fire protection installations.
• Light weight: Weight of approximately 1 kg facilitates transport and installation of the valve.