Hydrostatic 测试ing is a process where components, such as piping or pressurized containers are 测试ed for strength and leaks by filling the equipment with pressurized liquid.
佛罗里达州所有消防设备 is one of the largest DOT hydrostatic 测试ing facilities in the 坦帕 area. 我们的骄傲 ourselves on our quick turnaround time and our attention to detail. We have the ability to hydrostatic 测试 almost all cylinders with a DOT number including but not limited to:
• Low-Pressure Aluminum Cylinders
• High-Pressure Aluminum compressed gas cylinders
• Fiber-reinforced high-pressure cylinders
水压试验 (Requalification) – The Process
A brief description of the requalification process follows. The cylinder has its valve removed and all external and internal surfaces made visible to the DOT (Department of Transportation) qualified hydrostatic 测试er. The cylinder is externally and internally visually inspected according to required DOT specifications. If it passes, the hydrostatic 测试 is performed.
To hydrostatically 测试 the cylinder, it is placed inside of a water jacket (containing water) which is sealed with hydraulic clamps. The cylinder is filled with water. The cylinder is then pressurized with even more water via a high-pressure pump. The cylinder expands a little and displaces water in the water jacket. The amount of water displaced in the water jacket is measured by a precision method. This amount of water displaced signifies how much the cylinder expanded under pressure. When the water pressure returns to normal, the amount of expansion that still exists (the water not taken back into the water jacket) is called the permanent expansion. This information is recorded and compared to DOT requirements to determine if the two expansions of the cylinder adhere to DOT regulations.
If the cylinder passes the internal and external inspection and re测试, the re测试er marks the all-metal cylinder by stamping into the metal or labels a composite cylinder with a label sealed in resin. The information marked or labeled includes the RIN identification and the re测试 date. A record is then made of the requalification with the information mandated by the DOT.
The re测试er is required to stamp out cylinder DOT markings with X’s or with the word “Condemned” if the cylinder does not pass the hydrostatic 测试ing process. Cylinders that are fully wrapped with composite materials that do not pass requalification are labeled condemned. The cylinder should be rendered unable to hold pressure with the permission of the cylinder owner. It is recommended that all cylinder owners permit the hydrostatic 测试ing facility to render condemned cylinders unable to hold pressure by drilling through the cylinder or terminating valve threads. A record is made of condemned cylinders, according to DOT standards.
Other Cylinder bmw宝马在线电子游戏 We Offer:
• Scuba Visual Tank Visual Inspections
• Eddy-Current Testing (electromagnetic 测试ing on cylinder treads)
佛罗里达州所有消防设备 is a fully licensed hydro 测试ing facility.
If you are anywhere in the 坦帕, St. 彼得堡, 克利尔沃特, 莱克兰, 宽广的, 萨拉索塔, 或顿地区, we are just a phone call or email away. 打电话或发邮件给我们 firstname.lastname@example.org. If you prefer, fill out our easy bm宝马在线电子游戏 form, and we’ll reach out to you.
How often do I need to have my tanks hydro 测试ed?
You can check the 测试ing requirements of your equipment by referring to the DOT sticker on your cylinder. All the information the 测试er needs is there including the serial number, 制造商, 和生产日期.
If you are uncertain about the 测试ing requirements of your equipment, you can find more information on the 点的网站, or just contact 佛罗里达州所有消防设备 and we can do the research for you.
These common gas cylinders have the following 测试ing requirements:
DOT-3AL gas cylinders must be 测试ed every 5 years and have an unlimited life.
DOT-3HT gas cylinders must be 测试ed every 3 years and have a 24-year life.
DOT-3AA gas cylinders must be 测试ed every 5 years and have an unlimited life. (除非
stamped with a star (*) in which case the cylinder meets certain specifications and can have a 10-year hydrostatic 测试 life)
在美国.S. 和加拿大, 如ASTM等组织, and ASME specify the guidelines for the different types of pressure vessels.