Stainless steel stop valve for ammonia Stainless steel Ammonia valve - "YL" Yonglong valve quality assurance
Model: AWJ45F-25P AWJ45F-40P
Introduction of stainless steel ammonia stop valve:
AWJ45F-25P stainless steel stop valve for ammonia Stainless steel Ammonia valve Also called stainless steel liquid ammonia stop valve, stainless steel ammonia stop valve, the valve body is made of CF8 material, and the sealing PTFE replaces Hastelloy (tin base bearing alloy), which extends the service life of the valve disc. The valve stem packing is designed with a self loaded spring, so that no seal leakage will occur during the switch action. The concave in the middle of the valve stem and the convex of the valve stem are symmetrical to form a reverse seal, reducing the pressure to prevent the impact on the packing, and effectively preventing gas leakage.
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Technical parameters of stainless steel ammonia stop valve |
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Nominal diameter |
DN15-200mm |
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Connection mode |
Flange welding |
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body material |
WCB,CF8,CF8M,CF3M |
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handwheel |
Carbon steel, ductile iron |
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Nominal pressure |
PN16、PN25、PN40、PN64 |
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Medium temperature |
Carbon steel: - 29~120 ℃ |
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Stainless steel: - 40~120 temperature |
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seal up |
PTFE, graphite |
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Connecting flange |
Convex |
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Media: |
Ammonia, gas, oil, liquefied gas and weak corrosive medium |
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Sealing material |
Polytetrafluoroethylene (F) |
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Hard alloy (Y) |
Delivery inspection of stainless steel ammonia stop valve:
The valves must be inspected and tested one by one before delivery.
Type inspection of stainless steel stop valve for ammonia:
In one of the following cases, type inspection is generally required:
● New product trial production type approval
● During formal production, a periodic inspection shall be conducted regularly or after a certain amount of production is accumulated.
● During formal production, such as when there are major changes in structure, materials and process that may affect product performance.
● When the production is resumed after the product has been stopped for a long time.
● When the national product quality supervision and inspection institution requires formal inspection.
AWJ45F-25PDN65 stainless steel stop valve for ammonia is used as the valve for manual switch in cement plant, power plant ammonia station desulfurization and denitrification, chemical plant storage tank, food refrigeration equipment, liquefied gas storage tank and gas filling station.
Shanghai Yonglong Valve Factory is constantly improving our product quality and service in order to meet the constantly improving requirements of customers. Years of experience and nationwide application performance fully demonstrate our technical ability. "YL Yonglong" will give full play to the advantages of the enterprise, continue to improve quality, comprehensively improve product technology and service level, provide users with high-quality products and perfect services, and make greater contributions to society.
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