BRA.20.900 - Gate valve with soft seal

The BRA.20.900 series includes flanged gate valves with soft sealing technology designed for use in heating, ventilation, air conditioning (HVAC), water supply, and wastewater systems. These valves are constructed from grey iron body (GJS 500-7), a stem made of AISI 420 stainless steel, and a gate with an EPDM coating. They operate within a temperature range of -10°C to +85°C and are rated for a maximum pressure of 16 bar. The flanges conform to EN 1092 standard with PN 16 rating.

The valves feature a non-rising stem design with four NBR O-rings on the stem to ensure a tight seal. They are suitable for use in closed-loop systems such as central heating, domestic hot and cold water distribution, and drainage applications. However, they are not recommended for steam or fluids containing oils or hydrocarbons due to potential degradation of the sealing materials.

How to choose

• Select the appropriate nominal diameter (DN) based on the pipe size in your system (e.g., DN 50 to DN 250).
• Ensure the flange type and dimensions match the EN 1092 standard and the connected components.
• Verify that the operating temperature and pressure conditions fall within -10°C to +85°C and up to 16 bar respectively.
• Check system fluid compatibility—these valves are not suitable for steam or hydrocarbon-based fluids.
• Consider the stem design and sealing mechanism for maintenance requirements and long-term reliability.

Frequently asked questions

What is the maximum allowable pressure for these valves?
The maximum operating pressure is 16 bar.

Are these valves compatible with steam systems?
No, these valves are not suitable for steam or fluids containing hydrocarbons due to the EPDM sealing material.

Can these valves be used in both heating and cooling systems?
Yes, provided the temperature remains within the -10°C to +85°C range and the system does not contain oils or hydrocarbons.