Three peace annex boiler is non-metallic compensation, safety valve and water level gauge. Safety valve role is when the pot steam pressure exceed the allowable value, the safety valve automatically open, sales compensation, outside exhaust, when the pressure falls below a specified value is automatically shut down, bellows type, to prevent the boiler due to overpressure explosion. Non-metallic compensation features: compensate for thermal expansion: non-metallic expansion joints can be multi-dimensional direction to provide greater compensation in less size range. Compensate for device error: Because the pipeline connection, Zhumadian compensation system error is inevitable, non-metallic compensation device can better eliminate errors. Today our country is very active metal compensator, stainless steel bellows, metal compensator pipeline equipment market will become the "main force", but the brutal market situation and the competitive situation of the relevant companies have metal compensators industry chain cornered edge of the cliff, facing the pressure from the international market, the domestic enterprises to overcome the metal compensator high raw material prices, the market is increasingly competitive, some serious surplus production capacity and other unfavorable factors, the positive change in the business model of the sleeve compensator, Serco Water materials (certified), Zhumadian compensation provided by Serco Gongyi City Water Supply Materials Co., Gongyi City Water Supply Materials Co. Serco (www.gyxjbcq.com/) is Zhengzhou, gate leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Serco supply material in leadership with the staff warmly welcome all inquiries negotiations to create Serco supply material better future.