For a boiler to operate stably and efficiently, all links must be properly coordinated without making mistakes. For gas-fired boilers, it is necessary not only to have softened water treatment facilities, but also to carry out regular sewage discharge, which cannot be ignored. Zhengzhou Fangkuai Boiler Factory is here to tell you what you need to pay attention to when draining gas boilers.
1. It is necessary to check the condition of the blowdown valve of the gas boiler before the blowdown. If the blowdown valve is seriously damaged (bent stem, stuck valve, serious leakage, etc.), it is not allowed to use it for blowdown.
2. Before pollutant discharge, the shift leader and neighboring furnaces need to be notified.
3. It is necessary to find out that the gas boiler under maintenance has been isolated from the sewage system before discharge.
4. It is forbidden to blow off two gas boilers at the same time.
5. The sewage discharge place and the passage leading to the sewage discharge point should have sufficient lighting, otherwise the sewage discharge is not allowed.
6. When someone is overhauling the sewage system, it is prohibited to discharge sewage.




We, Zhengzhou Fangkuai Boiler Co., Ltd. (Fangkuai), are excited to announce our participation in the Indonesia International Heating Technology Exhibition 2025. We will be showcasing our advanced boiler systems engineered for higher efficiency, lower emissions, and sustainable energy performance. Join us at Booth No. B1-08 from November 5–7, 2025 at the Jakarta Convention Center.
The event brings together EXPO BOILER, EXPO BIOMASS, EXPO PUMPS & VALVES, and EXPO CRANE — creating a comprehensive platform for technology exchange and business collaboration across the industrial heating and energy sectors in Southeast Asia.
At the exhibition, we will present our integrated solutions including biomass boilers, industrial steam systems, and full power plant EPC services. Our products emphasize:
Event Details
Date: November 5–7, 2025
Venue: Jakarta Convention Center, Indonesia
Booth: B1-08
We welcome industry partners, plant owners, EPC clients, and technology scouts to visit our booth and explore collaboration opportunities. Whether you are planning a biomass retrofit, a new power plant EPC project, or seeking high-efficiency boiler equipment, our engineers will be available for technical discussions and project consultations.
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