FAQs on Erection and Maintenance of Twin Lobe Roots Blowers in STP & ETP Applications
This FAQ guide answers the most important questions regarding the erection and maintenance of Twin Lobe Roots Blowers used in Sewage Treatment Plants (STP) and Effluent Treatment Plants (ETP). It highlights key factors such as proper installation height, ideal discharge pressure, correct piping practices, use of recommended lubricants, and preventive maintenance routines. It also covers common operational mistakes, overheating solutions using PLC controls, and industries beyond STP/ETP where these blowers are widely used. Ideal for engineers, plant operators, and maintenance professionals seeking reliable, long-lasting blower performance.
FAQs on Erection and Maintenance of Twin Lobe Roots Blowers in STP & ETP Applications
you tube video link : https://youtu.be/drE09uKqvr0
Content:
Q1: Why is blower installation height important?
A: Blowers must be installed above tank level to prevent back pressure, overheating, and oil leakage.
Q2: What’s the ideal discharge pressure range?
A: Operate below 0.4 kg/cm² for best results, even if rated up to 0.7 kg/cm², to avoid overheating.
Q3: What are the must-do steps during erection?
A: Check shaft rotation, oil level, belt alignment, suction filters, and use correct piping with PRV & NRV.
Q4: Can I use any lubricant?
A: No. Use recommended SAE 90/140 oil and high-temp grease (40°C–120°C).
Q5: How do I avoid overheating in continuous operation?
A: Use timer or temperature-based PLCs to alternate between two blowers automatically.
Q6: What are common mistakes in piping?
A: Avoid pipe size reductions, sharp bends, and long vertical upward discharge. Use correct header sizing.
Q7: What maintenance routine should I follow?
A: Daily—check oil; Weekly—inspect filters; Monthly—lubricate & check belts; Annually—gear & seal inspection.
Q8: What other industries use these blowers?
A: Aquaculture, cement, sugar, chemical, food, and electroplating sectors.
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