Flange Installation Guidelines

What to look at before beginning the installation?

Accessories or connections for the flange: Properly introduced flanged connections give progress fitting to join substitute funneling materials, a mechanical way to interface with valves and other hardware, and join channeling frameworks where continuous destroying might be required. The notched substance of the flange gives a fluid-tight seal on the gasket when flanges are appropriately gathered, upheld, and legitimate torque is applied to the bolts.

Gaskets: Full face 1/8" thick elastomeric material with a Shore A Durometer hardness of 50-70; gasket material is chosen should be viable with application and liquids passed on. Varieties in a gasket material and shore hardness may influence the fixing torque required.


Dimensions of the flange:  Dimensions are more than after according to the ANSI Flange dimensions. Flange ring bolt opening dimensions adjust to ANSI B 16.5 Class 150 bolt design. Strung flange center points are tightened iron line size strings per ANSI B2.1. Attachment flange center points adjust to ASTM D2467 tightened attachment dimensions.

Check for the pressure rating: Maximum pressing factor rating for formed flanges ½" through 12" breadth 150psi non-stun at 73°F. Proper temperature de-rating factors should be applied when working at raised temperatures more prominent than 73°F.

Bolt Torque or Bolts: Select appropriate bolt size, amount, length, and washers for the particular sizes of flanges and gear being collected. Continuously utilize two (2) wide level washers per bolt (one under the head and one under the nut). Strings ought to be spotless and all around greased up. The bolts to be chosen depending on the flange thickness. Recheck the flange thickness and flange wall thickness before beginning to assemble them on site.

The Installation

When the flange hub is accurately joined to the pipe and permitted to fix appropriately, and the piping framework is upheld appropriately, the strategy for joining two flanges is as per the following:

·    Ensure the framework is appropriately upheld and adjusted, and that mating surfaces of flanges being joined are definitely not isolated. Try not to utilize bolts to adjust the framework or arrange flanges. 

·     With gasket set up, adjust all bolt holes of mating flanges by pivoting the flange ring into position.

·      Supplement all bolts, level washers (two standard level washers for every bolt), and nuts.

·       Be sure the essences of the mating surfaces are flush against the gasket before bolting down the flanges.

·     Utilizing the outlined bolt-fixing grouping appeared underneath, fix every one of the nuts by hand until easy. When it is easy by hand, fix the bolts entirely inverse one another (180°) utilizing the arrangement that appeared with a torque wrench. Apply uniform pressing factor across the flange by fixing in phases of 5 ft-lb increases until definite torque values appeared in the accompanying table are gotten. Don't over fix. Do not over-torque the flange.

·    Care should be taken to try not to twist stresses to the flange when mating to raised confronted flange, metallic flange, fixed flanged items or wafer-style valves. The plastic flange, attached pipe, fitting, and or valve should be upheld appropriately to dispose of stress on the plastic flange.

To Conclude,

Gaskets are essential elements and must be handled and installed well. Taking care of the material and thickness of the gasket ensures successful installation of the flange thereby permitting you to work.  The type of accessories depends on the flange specifications. Dimensions requiring to be more prominent, ASME flange dimensions (mostly) are used as a standard reference to ensure quality and geometric dimensions and tolerances.

If you still have any doubts about flange installation, do let us know in the comment section!

 

 

Comments

Post a Comment

Popular posts from this blog

Importance of AWWA Flanges in Piping Systems

Image
AWWA flanges, also known as American Water Works Association flanges, play a very important function in piping systems used for water supply and treatment. These specialized flanges are designed to meet the high quality standards and requirements set by the American Water Works Association, that ensure the safety and reliable conveyance of water in municipal, industrial, and commercial applications. The importance of  AWWA flanges  lies in their ability to provide secure connections between pipes, valves, pumps, and other components, preventing leaks and ensuring the integrity of the water distribution network. By following and meeting the strictly established manufacturing standards and quality control measures, AWWA flanges help maintain the safety, efficiency, as well as sustainability of water supply networks, which helps in protecting or safeguarding public health, environmental protection, and economic development. 8 key points to understanding the importance of AWWA Fla...
Read more

Stepping Into Flanges

Image
  The flange is one of the essential components required to connect two pipes. It helps in connecting the ends of two pipes through welding or threading. Flanges are classified into two main categories as per the attended modes: welded and  threaded flanges .  When you want to connect two pipes, you’ll need a pair of flanges, a gasket, and several nuts and bolts to complete the flange joint. First, put the gasket between the two sealing faces and then tighten the bolt. When the gasket surface pressure reaches a certain level, it deforms to fill the uneven parts of the sealing surface to achieve the perfect leak tightness. A flange joint   is usually a detachable link. It means the detachable components are divided into tube flanges and containers. If we look from the perspective of structure types, they are threaded, loose, and integral flanges. Butt and flat  welding flanges  are two general types of integral flanges. Flat welding flanges are applicabl...
Read more

5 Common Valve Types Every Oil and Gas Engineer Should Know About

Image
A valve is a mechanical device in a piping system used to control the flow and pressure of contents – liquid, oil, vapors, or gas. Here is a list of 5  standard valves that every oil and gas engineer should know: #1. Ball valves It's a rotary motion quarter-turn valve. It uses a ball-shaped disk to control the flow of components flowing in the piping system. When you open the valve, the ball's holes come in line with the body inlet, allowing contents to pass. The ball valves can withstand a temperature between - 200 deg C and as high as 500 deg C. the best thing about this valve is that it’s a quick-acting type. Some of the different types of ball valves include: ·           Floating ·          Trunnion Mounted ·          3 Way ·          Top entry ·          Side en...
Read more