Tubesheets are one of the most important components of Shell and Tube Heat Exchangers. tube sheets are usually made from a round flat piece of forged plate which are machined with holes drilled for the tube ends in a precise location and pattern relative to one another. Tube holes can be drilled and reamed and can be machined with one Read more…
Dish Head Dish head are used as a cap in order to end pressure vessels barrel. Depending to the design and construction of vessels, these caps are used in various configurations. 1. Hemispherical Hemispherical head is made in form of half-sphere and technically is the ideal shape for a vessel head. This is because forces are spread out equally across Read more…
Girth flange/Flanges for heat exchangers We are a professional manufacturer of Girth Flange,Forged flanges for heat exchanger in China. What is a Girth Flange? A girth flange is a type of flange used to connect two sections of a cylindrical vessel, pipe, or tank. It is typically used in applications such as pressure vessels, storage tanks, heat exchangers, and large-diameter Read more…
ASTM A182 F51 WNRF FLANGE,A182 F51 Duplex stainless steel Welding neck flange, A182 F51 Flange,Duplex stainless steel Flange,blind Flange,Slip on Flange,SAF 2205 Flange, Duplex 2205 Flange We are a professional manufacturer and exporter of A182 F51 flanges in China. A182 F51 flanges offering unmatched performance and reliability in critical piping systems. Crafted from Duplex Stainless Steel Grade F51, these flanges adhere Read more…
Swages nipples are a kind of Reducers,but longer than Reducers, and are used more extensively in higher pressure applications. Swage Nipples are manufactured accordance with MSS–SP–95 , Swage nipples are offered in threaded ends per ASME B1.20.1 and beveled ends per ASME B16.25. Swages contain a bore, usually matching that of the pipe onto which they are fitting. Because each end is of a different size, the Read more…
Pipe Flanges Raw Material Specifications The usual materials of flanges include stainless steel, carbon steel, aluminum and plastic. The choice of the material largely depends on the purpose of the flange. For example, stainless steel is more durable and is necessary for heavy use. On the other hand, plastic is more feasible for use in the home because of its Read more…
With flange Face the form and implementation of the side of a flens are meant, where a sealing ring or gasket will be placed. Different types of flange faces are used as the contact surfaces to seat the sealing gasket material. ASME B16.5 and B16.47 define various types of flange facings, including the raised face, the large male and female Read more…
A Tapped Blind Flange, also known as a NPT Threaded Test Flange, is a blind flange machined with one or more NPT threaded holes.
It is primarily used for pressure testing, venting, draining, chemical injection, and instrument connection in piping systems.
Compared with standard blind flanges, tapped blind flanges provide greater flexibility during commissioning, testing, and maintenance, making them widely used in oil & gas, petrochemical, power generation, and industrial piping applications.
Test Flange is made of the blind flange,with tapped NPT Threaded hole in the middle.
Normally,the blind flange are with 1/2 npt tapped thread
These include NPT tapped holes and special threads to allow pressure test connections to be fitted. Blind flanges are generally used to blank off the ends of pipe. They are also used on similar valves and pressure vessel openings. Because they are often located at the ends of systems, these flanges often are among the highest stressed flange types.
Tapped blind flanges can be manufactured in a wide range of materials, including:
Carbon Steel:
ASTM A105 / A105N
Stainless Steel:
Duplex & Super Duplex:
ASTM A182 F51 / F53 / F55
Weld overlay cladding Flange Cladding is a welding procedure that puts weld metal on the surface of the work, as opposed to joining two pieces of material A weld overlay cladding flange is also known as cladding flange,it is a flange used of a weld overlay cladding technology process to build up the corrosion resistant alloy(CRA) layer to substitute the solid metal Flanges. The surfacing process of Read more…
API 6A Double Studded Adapter Flange API DSA Flange DSAF (Double Studded Adapter Flange) is a combination of flanges of different sizes and pressure ratings. We supplied DSAF (Double Studded Adapter Flange) in various sizes and pressure ratings as per customer’s specified thickness, consistent with design considerations. DSAF (Double Studded Adapter Flange) range: Size: 2-1/16″ to 21-1/4″, Also As per customer’s requirement. Pressure Read more…