FITTINGS
"Flawless joints that withstand harsh pressure and temperature."
No matter how sturdy a pipe is, if the joints are weak, the safety of the entire plant cannot be guaranteed. RPS supplies high-quality fittings that 100% satisfy strict specifications (ASME, JIS, EN) required in high-temperature and high-pressure oil/gas, petrochemical, power plants, and shipbuilding/marine environments. By providing fittings that are perfectly compatible with our seamless (SMLS) and welded pipe lineups on a turnkey basis, we minimize the procurement hassles for our clients.
Product Introduction
Based on extra-large fitting manufacturing technology using various materials, we supply products from Korean manufacturers who possess the core technologies for fittings across various plants, including petrochemical/refining/gas plants, thermal/nuclear/desalination power, and offshore structures/shipbuilding.
Classification by joint Method
-
Butt-Weld Fittings
This is a method of directly aligning and welding the bevel end of a pipe with the end face of a fitting. It is mainly used for large-diameter and high-pressure pipelines, offering the most superior structural strength without obstructing the flow of fluid.
- Major Items: * Elbow: 45°, 90°, 180° (Long Radius / Short Radius)
- ee & Cross: Equal Tee, Reducing Tee
- Reducer: Concentric, Eccentric
- Cap: For closing the pipe ends
-
Forged Fittings
Mainly used for small-diameter high-pressure piping under 4 inches and instrumentation equipment. Manufactured using the forging method of hammering hot metal, it features a dense internal structure and excellent pressure resistance.
- Socket-Weld: Socket-Weld: A method where the pipe is inserted into the fitting socket and fillet-welded around the outside (ASME B16.11). Mainly used for small-diameter lines of 2 inches (50A) or less, it has outstanding leakage resistance, making it highly effective for high-risk piping networks handling flammable, noxious, and radioactive liquids and gases.
- Threaded: A method where the fitting is securely joined without welding using machined threads (such as NPT, PT) on the pipe (ASME B16.11). Like socket welding, it is mainly used for small-diameter lines under 2 inches (50A). It is essentially applied in explosive hazard zones where welding (hot work) is strictly prohibited, galvanized piping systems, low-pressure utility lines (water, air), and sections requiring frequent disassembly and regular maintenance.
- Major Items: Elbow, Tee, Coupling, Half-Coupling, Boss, Union, Plug, etc
Available Production Range
| Material | Items | Specification (mm) | |
|---|---|---|---|
| Mold Type | Fabrication Type | ||
| Carbon Steel | ELBOW | ~ 60 inch | ~ 120 inch |
| Allow Steel | TEE | ~ 60 inch | ~ 120 inch |
| Stainless Steel | REDUCER | ~ 48 inch | ~ 120 inch |
| Duplex Steel | CAP | ~ 48 inch | ~ 120 inch |
| Nickel & Alloy Steel | STUD-END | ~ 16 inch | ~ 60 inch |
| Cu & Alloy Steel | FORGED FITTING | ~ 4 inch | ~ 4 inch |
| Titanium & Zirconium | OUTLET FITTING | ~ 36 inch | ~ 36 inch |
Available Material Range
| Delivered Plant | Delivery Plant | ||||||
|---|---|---|---|---|---|---|---|
| Carbon and Alloy Steel (A234) | |||||||
| WPB | WP1 | WP11 | WP22 | WP5 | WP9 | W91 | |
| Chemical & Petro-Chemical | ○ | ○ | ○ | ○ | ○ | ○ | |
| Ship-Building | ○ | ○ | ○ | ○ | ○ | ○ | |
| LNG Carrier | ○ | ||||||
| Power Plant | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| Nuclear Power Plant | ○ | ○ | ○ | ○ | ○ | ||
| Onshore & Offshore | ○ | ||||||
| Delivered Plant | Delivery Plant | |||||||
|---|---|---|---|---|---|---|---|---|
| Stainless Steel | ||||||||
| Austenitic Grade | Ferritic-Austenitic Grade | |||||||
| WP304 304L |
WP316 316L |
WP317 317L |
WP321 321H |
WP347 347L |
S31254 (6Mo) |
A815 UNS S31803 |
A815 UNS S32760 UNS S32750 |
|
| Chemical & Petro-Chemical | ○ | ○ | ○ | ○ | ○ | |||
| Ship-Building | ○ | ○ | ○ | |||||
| LNG Carrier | ○ | ○ | ○ | ○ | ||||
| Power Plant | ○ | ○ | ○ | ○ | ○ | ○ | ||
| Nuclear Power Plant | ○ | ○ | ○ | ○ | ||||
| Onshore & Offshore | ○ | |||||||
| Delivered Plant | Non-Ferrous Material | ||||||
|---|---|---|---|---|---|---|---|
| Copper Alloy (70600) |
Titanium (ASTM B337) |
Aluminium (ASTM B361) |
Nickel Alloy | Hastelloy | |||
| NO4400 (MONEL) |
NO6625 (INCONEL) |
NO8825 (INCOLOY) |
B366- WPHC276 |
||||
| Chemical & Petro-Chemical | ○ | ○ | ○ | ○ | ○ | ||
| Ship-Building | ○ | ○ | ○ | ○ | ○ | ||
| LNG Carrier | ○ | ○ | |||||
| Power Plant | |||||||
| Nuclear Power Plant | ○ | ||||||
| Onshore & Offshore | ○ | ○ | |||||
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