What is a ring flange?
A Ring type joint flange(RTJ) is a machined metallic ring with a deep groove cut into its face. This groove rests a metal ring which gets compressed when the connecting bolts of the flange are tightened.
What are ring joint flanges used for?
The Ring Type Joint flanges are typically used in high pressure (Class 600 and higher rating) and/or high temperature services above 800°F (427°C). They have grooves cut into their faces which steel ring gaskets.
What is ring joint?
The Ring Type Joint or RTJ refers to the type of Gasket required for the Flange. The Ring Type Joint was designed for the Petroleum and Petrochemical industries where higher pressures and temperatures are present.
How are flanges classified?
The key types of flanges are the welding neck, long welding neck, slip-on, socket weld, lap joint, threaded and blind flanges.
What is ring type gasket?
Ring type joint gasket (RTJ Gasket) is a high integrity sealing gasket, high temperature and high pressure gasket for applications in petroleum industry, oilfield drilling, pressure vessels joints, pipes and valves etc from Goodrich Gasket Pvt.
Can you mate a RF flange to FF flange?
In addition, RF monitor flanges cracked on installation are not warrantable. Elkhart Brass does not recommend connecting FF flanges to RF flanges. Some codes such as ASME B31. 1 prohibit connecting FF flanges to RF flanges.
What is ring gasket?
A ring-type gasket is placed and installed inside of the flange bolts and around the pipe bore. It has no bolt holes and is typically used on raised face flanges since it can easily sit right on top of the flange. Due to its composition, it can be installed without disassembling the joint.
How do you specify flanges?
- the nominal size (i.e. the bore size of the flange, to match the bore size of the connecting pipe)
- the flange rating (which designates the pressure/temperature performance of the flange, i.e. 150#, 300#, 400#, up to 2500#)
- the schedule for welding neck flanges (that should match the pipe schedule)
What is a ring type joint (RTJ) flange?
Ring joint gasket dimensions conform to ASME B16.20 (not covered in this summary).
What are typical torque values for ring joint gaskets?
What are typical torque values for ring joint gaskets Typically 50% of the bolt yield is applied as a bolt stress. API 6A includes a torque table for its flanges. Fast Delivery Fast to deliver the goods all of the world. Prompt Feedback Rapid computer quotation system,ensure the
What are the types of flange gaskets?
Types of flange gaskets: Standard pipe flange gasket line includes two basic styles: Ring Type and; Full Face; Both ring type and full face pipe flange gaskets are available in both low and high pressure options.
What is a ring joint?
This is an oval Ring Type Joint totally enclosed in a nitrile rubber coating. The Ring Type Joint material is usually soft iron or low carbon steel. This type of gasket has three main functions: • It is used in pressure testing to minimize damage to flanges. • The rubber contact points provide additional seals while protecting the flange surfaces.