Why extract the sludge?

In steam generators, sludge extraction is carried out to prevent the formation of scale on components and tube sheets, providing greater heat exchange efficiency and generator service life.

Boiler feed water can come from various sources and in most cases contains impurities that need to be removed to prevent scaling of components, which is why they are subjected to chemical treatment to eliminate these.

Chemical treatment causes these impurities (suspended solids) to settle, settling at the bottom of the components (cylindrical body and collectors) in the form of sludge, so that they can be removed by bottom discharges, preventing their accumulation, which can cause serious and irreversible damage to the equipment if not removed.

What is the best type of Bottom Discharge Valve?

Efficiency and effectiveness in discharge

MBX bottom discharge valves, due to their construction form, provide greater thrust, generating greater drag and removal of deposited solid waste (sludge), ensuring the efficiency and effectiveness of the bottom discharge process.

Saving treated water

Due to their construction, MBX bottom discharge valves have significantly lower flow coefficients compared to globe and ball valves, approximately between 50% and 75%, providing savings in water, chemicals, fuels and energy.

Technical Data

• Body, Lid and Bonnet: Carbon Steel ASTM A216 GRWCB;
• Actuator: Carbon Steel ASTMA 216 GR WCB;
• Seat: AISI 420 stainless steel;
• Shutter: AISI 420 stainless steel;
• Sealing: Metallic;
• Connections: ANSI 16.5 150/300 lbs;
• Nominal diameter: 1.1/2”, 2”.

Operating Limits

• Pressure: 150 to 300 lbs
• Temperature: 450°C
• Drive: Dry compressed air, free of dust and oil, pressure of 6.0 bar.

Advantages

• Own production;
• Special sealing system to withstand temperatures up to 450°C;
• Robustness;
• Built-in lever system, allowing you to view the valve's opening and closing position;
• Construction form that allows greater thrust, generating greater drag of the sludge;
• Personalized service;
• Quality guaranteed;
• Best price.