Customization: | Available |
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Media: | Gas |
Temperature: | Ordinary Temperature |
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Product Description
Product name: | Stop valve for ammonia | Product model | J41B |
Nominal size | DN10~DN300 | structural style | Globe valve |
Nominal pressure | 2.5MPa~16.0MPa | Connection mode | Flange, welding, internal thread, external thread |
Applicable temperature | -40ºC~+200ºC | type of drive | hand wheel |
Body size | Cast iron, cast steel, stainless steel | Standard | GB,DIN,API,ANSI |
Applicable medium | Ammonia, gas, liquid | manufacture | HUIZHENG VALVE |
The shut-off valve for ammonia has the characteristics of stable sealing performance, safe and reliable use, strong corrosion resistance, no internal and external leakage of medium and light operation, etc. It has successfully solved the problems of poor corrosion resistance, easy perforation of shell, poor sealing performance and easy leakage of ordinary valves for chemical pipelines, and is especially suitable for the transmission of ammonia and gas pipelines in chemical industry, and meets the requirements of long-term reliable use, and its sealability, maintainability and safety, etc.
Product features
1. In view of the shortcomings of poor corrosion resistance and easy perforation of the shell of ordinary valves, according to the specific characteristics of the medium, corrosion-resistant steel (low-temperature carbon steel added with corrosion-resistant alloy elements) is selected as the valve body material for ammonia special valves, which can resist the corrosion of ammonia and liquid ammonia, and the low temperature can reach-40ºC, so as to ensure the use requirements of working conditions to the maximum extent.
2. The matching structure of sealing pair of stop valve for ammonia adopts ball and plane type, and the sealing is automatically compensated, so as to achieve the effect of double insurance, with stable sealing performance and no adhesive wear, which effectively solves the problems of poor sealing performance and easy leakage of ordinary valves for chemical pipelines.
3. The middle flange of the product adopts concave-convex sealing structure, which ensures the absolute reliability of the middle flange seal even under the condition of pipeline pressure fluctuation.
4. Multi-grade PTFE sealing material is used in the upper sealing device to form a combined seal, which ensures that the stuffing box of the valve has no medium leakage during the service life, eliminating the possibility of weak sealing, easy leakage of medium and even accidents of ordinary valve stuffing box.
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