Plug for pressure testing of pipe flanges [for high pressure/neck flanges]
CURTISS-WRIGHT Double Block & Bleed Isolation Plug
This is a plug that allows for isolation and pressure testing after welding to be conducted locally during the replacement work of the weld neck flange. [Maximum pressure value: 15.5 MPa]
During flange replacement work at plant piping maintenance sites, localized welding points can withstand pressure tests up to 15.5 MPa. - Localized response with a plug eliminates the need for ancillary work. - Significant reduction in labor (cost) is achieved. - Can be reused multiple times. - Localized testing allows for a reduction in the amount of medium used. This is a plug compatible with weld neck flanges. We also have high-lift flange welding test plugs compatible with slip-on types. *For more details, please download the PDF or contact us.
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basic information
【DBB Plug】 - Maximum pressure resistance: 15.5 MPa - Compatible with ANSI sizes from 3/4" to 24". (JPI standards are also applicable to many sizes.) - Please feel free to contact us for detailed information or explanations. (Inquiries regarding size selection and estimates are also welcome.)
Price information
Prices vary depending on the size, so please feel free to contact us.
Delivery Time
※The delivery date may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
Curtis Wright Corporation/EST Division is a specialized manufacturer of pipe seal technology headquartered in the United States, handling various shapes of test plugs for high-pressure testing during pipeline and plant equipment operations. The biggest feature of these plugs is their ability to test at high pressure levels that are not available from other companies (they can be used for both hydrostatic and leak testing). DBB plugs are primarily used in flange work at plant maintenance sites both domestically and internationally.
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Company information
We are the domestic agents for overseas machinery/tool manufacturers necessary for plant maintenance and equipment fabrication. ■MAUS ITALIA (Italy/Repair tools and equipment for heat exchangers, manufacturing tools and equipment) They are one of the few specialized machine manufacturers in the world focusing on heat exchangers. They have numerous achievements in Japan, ranging from plant engineering companies to construction companies. ■CURTISS-WRIGHT EST Group (United States/Piping pressure test plugs, heat exchanger tube sealing plugs) They are a machinery manufacturer with specialized expansion seal technology. They produce mechanical plugs that can seal heat exchanger tubes with a single touch without welding, as well as test plugs that can achieve high pressure sealing during piping pressure tests simply by attaching the plugs. - Their special plugs enable high-pressure sealing, allowing for safe and significant reductions in labor. - They already have numerous achievements in repair sites of domestic and overseas oil/chemical plants, as well as in factories manufacturing large equipment such as boilers. - The sealing plugs for heat exchanger tubes are a noteworthy product that is increasingly being adopted in Japan. ■Various types of hose bands, clamps, and tools.