There are two standard forms of welding gate valve, one is to follow the introduction of ANSIB16.34 and JISL1E101 standards, the other is based on JB3595 standard GB. It follows the same temperature-pressure rating and there is some sort of interchangeability in some pipelines. The central part of the welding gate valve is self-tight with no valve cover pressure and has good sealing performance under high temperature and high pressure conditions. Self-sealing ring has two kinds of materials, one is low-carbon steel, the other is flexible graphite 316 wire (mesh). Welding surface of the top welding base carbide, the pure metal layer after processing ≥ 3mm, with wear resistance, high temperature, corrosion resistance, abrasion, long service life. Branch pipe at both ends of the welded structure, welding bevel according to the standard or user requirements. Power station welding gate valve for thermal power plants, petrochemicals, metallurgy and other high temperature and pressure water, metallurgy and other high temperature and pressure water, steam, oil, superheated steam pipe.

.Perilla Seed

1. Lower lipids and blood pressure

The rich linolenic acid in Perilla Seed Oil can reduce serum cholesterol, triglycerides, low-density lipoprotein and very low-density lipoprotein, thereby inhibiting thrombosis and preventing myocardial infarction and cerebral infarction. In addition, α-linolenic acid Acid can also reduce blood viscosity, increase blood oxygen-carrying capacity, inhibit the synthesis of triglycerides, and increase the metabolism of various lipids in the body. Therefore, perilla seed oil has a particularly obvious effect in lowering lipids and blood pressure, especially for hyperlipidemia. and borderline hypertension, the effect is more prominent.

2. Protect liver

The α-linolenic acid in perilla seed oil can effectively inhibit fat synthesis, break down fat and excrete it from the body. Daily consumption can prevent the formation of fatty liver.

3. Strengthen the brain and protect eyesight

CCTV's "Encyclopedia Quest" reported that α-linolenic acid is one of the basic raw materials for nerve cell synthesis and a key nutrient that determines the development of human intelligence. It is called "brain gold". Correct supplementation of linolenic acid can improve the IQ and intelligence of infants and young children. Increase by 20%-30%, pregnant women and children must supplement.

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