Omtech Metal Engineering Co. is a manufacturer of Carbon Steel Flanges of different shapes and sizes and with different specifications as per the customers’ requirement. Omtech Metal Engineering Co. is the world leader in Carbon Steel Flanges. We cater to the huge global demand of our customers who are spread across 6 continents and around 90 countries. Omtech Metal Engineering Co. are reputed and well known across the globe for their reliability and quality. We treat our customers as our partners by providing them with our products and solutions. And this ethos is displayed in not only our thoughts but also in our actions.
Our flanges division encompasses an integrated forge shop which manufacturers all types of pipe fittings i.e. flanges, butt welding fittings in various specifications (ASME, ANSI,MSS, etc) as well as forged bars.
We produce flanges in the size range from ½” to 40”. Omtech Metal Engineering Co. has an established and stringent quality system with more than 10 approvals and certifications in accordance with various specific requirements and applications. These approvals and certifications help us supply Omtech Metal Engineering Co. to major end users across a diverse list of industries.
Our integrated facilities include facilities for cutting, forging, ring rolling and machines with CNC lathes, CNC drilling, high capacity forging press and mobile manipulator for making big diameter forged round bars. We also have an in-house heat treatment shop and well equipped laboratory facilities for ensuring the quality of our products.
Types of Flanges:
Weld Neck Flanges have a long tapered hub and are often used for high pressure applications. These flanges are designed to be joined to a Piping system by Bun Welding. The Neck, or Hub, transmits stresses to the Pipe, reducing stress concentrations at the base of the Flange. The gradual transition of thickness from the base of the Hub to the wall thickness at the Bun Weld, provides important reinforcement of the Flange. The bore of the Flange matches the bore of the Pipe, reducing turbulence and erosion. These flanges are ideal for extreme fluctuations of temperature and in environments where there may be high pressure or high temperature being dealt with.
Slip-on Flange
These are easily fitted and welded into different pipes. Slip on pipe flange is slipped over the Pipe and then welded both inside and outside to provide sufficient strength and prevent leakage. These flanges are ideal for lower pressure applications. This Flange is used in preference to Weld Necks by many users because of its lower cost and the fact that less accuracy is required when cutting pipe to length.
Socket Weld Flange
These flanges are attached by inserting the pipe into the socket end. This allows for a smooth bore and better flow of the fluid or gas inside of the pipe. Socket-weld pipe flanges are mainly used for smaller sizes of high pressure pipes.
Threaded flanges are similar to slip-on pipe flanges except the bore of threaded pipe flange has tapered threads. These flanges are ideal for relatively low pressure piping systems. Threaded flanges are used with pipes that have external threads. The benefit of these pipe flanges is that it can be attached without welding.
Lap Joint Flange
Lap Joint Flanges slide over the pipe and are most commonly used with Stub End Fittings. A pipe is typically welded to the Stub End and the Lap Joint pipe flange is free to rotate around the stub end. Lap Joint pipe flanges are often used for applications that require frequent dismantling. Threaded pipe flanges are often used for small diameter, high pressure requirements.
Blind Flange
A Blind flange is round plate which has all of the relevant boltholes but no center hole, and because of this feature this flange is used to close off the ends of a piping systems and pressure vessel openings. It also permits easy access to vessels or Piping systems for inspection purposes.
Orifice Flange
Orifice Flanges are used instead of standard pipe flanges when an orifice plate or flow nozzle must be installed. Pairs of pressure tapping are machined into the orifice flange, making separate orifice carriers or tapping in the pipe wall necessary.
Specifications:
Standard Marking:
· Trade Mark
· Nominal
· Class
· Nominal Wall Thickness
· ANSI Standard
· Heat Code
· Material Designation
