In the case of European projects for piping utilizing carbon steel plate weld flanges, the EN1092-1 Type01 DN300 PN25 S235JR Plate Weld Flange has the highest demand among other similar product in the medium-pressure fluid transfer application. As a plated flange (Type01) in accordance with EN1092-1, it is welded to the outer part of steel pipes, offering easy installation, secure joint and cost effective solutions for water, gas, oil and general industrial pipes.
Let’s get to the heart of this flange specification first. Well EN1092-1 Type 01 is basically a plate flange for welding or slip-on plate flange. DN300 is the nominal diameter of 300mm, PN25 denotes pressure rating 25 bar. S235JR is the most widely used non-alloy structural carbon steel with moderate properties, exhibit excellent weldability, mechanical properties and good price, it is widely utilized in non-corrosive medium in normal ambient working condition.
A vital point which every buyer needs to check is the sealing face code. This series uses RF (Raised Face) sealing surface, widely used sealing surface for EN1092-1 flange. The raised face provides a small concentrated area of contact for gaskets to provide a secure seal. Along with RF, we are also offering other sealing face options such as FF (Flat Face), RTJ (Ring Type Joint) as per project drawing requirement. The type of sealing face has an impact on the gasket selection and anti-leakage performance. so it needs to be confirmed in very early sourcing.
There are a lot of international projects which require different region standards, not only European EN1092-1. our factory can provide full customized service according to the various global standard of the industry. We can manufacture flanges to ASME B16.5, JIS B2220, API, EN, DIN and various other specifications. Customization options include nominal size, pressure class, material grade, sealing face type , thickness, bolt hole quantity, surface treatment and marking. From ASME Class 150/300 RF Flanges to JIS 10K/20K Plate Flanges we can manufacture them all with full dimensional inspection and material test certificates.
The EN1092-1 Type01 DN300 PN25 plate weld flange S235JR RF is significantly applied in power station, water works, chemical pipe line, heating systems and general engineering construction. The machining cost and delivery time of the plate flange Type01 is lower than weld neck flanges. It`s simple to install just slide the flange over the pipe end then weld the flange on the pipe with fillet weld on two sides. Users, on the other hand, should be aware that plate weld flanges are best suited for static pipelines that aren’t subject to significant thermal cycling or heavy mechanical shock.
Quality is kindly assured for that whole procedure. Rough S235JR steel plates are inspected prior to CNC machining. Dimensional inspection, surface defect checking and hydrostatic testing are carried out for every finished flange. Material test certificates (3.1 certificate) are available on requestto assist with third party inspection for overseas engineering tender projects. Surface treatment can be made according to your request, such as black painting, anti-rust oil, hot Dip galvanizing.
If you are a global B2B buyer, then you must be flexible in handling your orders. We do accept customized marking, special packing as well as small batch trial orders. In case your project make use of several flange specifications, we also provision EN, ASME, JIS flanges pack in one supply to facilitate your procurement and logistics. Our technical team can check your piping drawing, suggest on sealing face selection and check flange compatibility prior to production.
In short, the EN 1092-1 Type 01 DN300 PN25 S235JR RF plate weld flange is a dependable choice for medium-pressure piping systems. We also manufacture flanges to ASME, JIS and other international standards, giving customers access to accurately sized, leak-resistant and cost-effective products for a wide range of pipeline projects.
Post time: Oct-15-2026
