Flanged Check Valve (Ball) - Series 07- DN 150; L=400mm BRA.F7.100

Product detailed description

Flanged check valves are essential components in industrial and agricultural fluid systems, ensuring unidirectional flow and preventing backflow. This model is commonly used in wastewater systems, irrigation, and chemical handling applications where media may contain solids or have high viscosity. Installers working in municipal infrastructure, agricultural facilities, or industrial plants often integrate these valves into systems requiring reliable flow control without the need for manual operation.

Correct installation and sizing are crucial to ensure the valve functions as intended. The valve must be placed in a position where it can respond to flow direction and maintain sealing under varying pressure conditions. It is not suitable for steam or gaseous media and should be used only in liquid-based systems.

Technical parameters

The nominal diameter (DN 150) defines the internal flow passage and is essential for matching the valve to the system's pipe size. The nominal pressure (PN 10/PN 16) indicates the maximum pressure the valve can handle, depending on the flange rating. The operating temperature range (-10°C to +70°C) ensures compatibility with a wide range of fluids, including those used in agricultural and industrial applications.

Installation and connection

Installation must be performed between flanges rated PN 10 or PN 16. The valve is designed for flanged connections and requires proper alignment with the mating flanges to ensure a leak-free seal. The overall length of 400 mm must be considered when planning the layout to accommodate the valve without restricting access for maintenance. Installers should verify that the flange surfaces are clean and free from debris before bolting the valve into place. Common installation errors include misalignment, incorrect flange rating, and failure to check the sealing surfaces before tightening the bolts.

Compatibility and accessories

This valve is compatible with systems handling wastewater, viscous liquids, and agricultural fluids. It is not suitable for gaseous or steam media. No specific accessories are required for standard installation, but flange gaskets and bolts should be selected according to the system's pressure and temperature requirements. No related products are available for this model.

Technical background for designers

The valve operates using a ball mechanism that opens under forward flow and closes under reverse flow to prevent backflow. The body and cover are made from ductile iron (GJS 400-15), providing durability and resistance to mechanical stress. The ball is steel-coated with NBR, which ensures good sealing properties and resistance to abrasion. The valve is designed to function efficiently in systems with low minimum pressure (0.2 bar) and a minimum backpressure of 0.5 bar. The material selection ensures compatibility with dense and viscous media, making it suitable for agricultural and industrial applications.

Service and operation

Regular inspection is recommended to ensure the sealing surfaces remain intact and free from wear. The valve should be checked for signs of leakage, especially after prolonged use with abrasive media. No specific service intervals are provided, but maintenance should be performed according to the system's operational conditions and the media being handled. The valve is not self-cleaning and may require manual cleaning if used with media containing solids or debris.

Frequently asked questions

Can this valve be used in steam systems?
No, the valve is not suitable for steam or gaseous media. It is designed for use with liquids only.

Is the valve suitable for high-temperature applications?
The maximum operating temperature is +70°C. It is not suitable for applications with higher temperatures.

Can the valve handle abrasive media?
Yes, the ball is coated with NBR, which provides resistance to abrasion. However, the valve should not be used with media that contain sharp or highly abrasive particles.

Is this valve suitable for use in drinking water systems?
No, the valve is intended for wastewater, viscous liquids, and agricultural applications. It is not certified for potable water use.