We, Indo Overseas extends a product line that is impeccable and unique with a complete customer satisfaction experience. We are manufacturers, suppliers and exporters of a range of (RTJ) that are best-in-class. 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. This compression results in a leak-proof, close-fitting seal on the pipe or connection.Stainless Steel Ring type Joint Flanges are classically used in high-pressure and high-temperature services, while are spill-proof. They can be manufactured from a number of materials.
Our manufacturing process is highly sophisticated and is divided into various departments supervised by experienced industry experts. We use only quality raw materials that are procured from only established and reliable vendors. We have adopted rigorous quality control practices and procedures to ensure the production of only quality products matching industry standards and parameters.
1. Raw Material
- Raw Material Check
- Quantity Check
- Visual & Dimension Check
2. Material Inspection
- Chemical Analysis Check
- Preservation Analysis Certificate
3. Material Cutting
- Weight Measuring
- Cut Surface Check
4. Flange forging
- Material Grade Check
- Weight Measuring
- Temperature Control
5. Heat Treatment
- Tempering, Q.T
- Solution Treatment
- Mechanical Test
6. Forging Rolling
- Material Grade Check
- Weight Measuring
- Temperature Check
- Dimension Check
7. Final Inspection
- Dimension size inspect
- Visual Test
- Nondestructive Test
8. Rust Prevention
- Preserve Check
- Marking on the flange
- Tectyl 506or Pickling or etc. Coating
9. Well Packing
- Packing Spec. Check
- Packing Inspection
Requirements are valid for normal situation, in special you have to contact us to introduce.
Our machining and assembly operations have a complete line of metal removal equipment including turning, boring, milling, drilling, grinding, polishing, welding and have testing equipment to manufacture forged steel fittings and valves. This facility also contains all the necessary equipment to support these operations including work holding and cutting tool needs.
The usual materials of flanges include stainless steel, carbon steel, aluminum and plastic.Beginning with this process,the system controls the quality of all incoming materials as per the raw material test certificate of the material. Mild Steel Flanges ( MS ) are of premium quality that ensures high durability, strength and resistivity to varied non-supporting conditions. Also, checking in each size for chemical and physical properties of these materials at Government approved laboratory.
Dimensions from carbon steel and stainless steel flanges are defined in the ASME B16.5 standard. The material qualities for these flanges are defined in the ASTM standards.
The normal rust prevention treatment for steel flanges include yellow (Golden) paint Coating, black paint coating or black phosphating treatment, varnish paint coating, varnish antirust oil coating, electro galvanizing coating (Cold), hot dip galvanizing coating etc.
Steel flanges must be packed with seaworthy packing method then delivery to customers, usually the packing way include wooden box, wooden pallet, iron & steel cage, iron & steel pallet etc. Because of the normal wooden boxes or wooden pallets have to do fumigation treatment, we usually use plywood pallet or plywood case or box to pack steel flanges without fumigation treatment. Whatever plywood or iron & steel packing way, they must be seaworthy, strong, waterproof and easy for loading and unloading.
Shipping mark stick to outside of package. Following shall be marked on flange body
- Manufacturer logo
- ASTM material code
- Material Grade
- Service rating (Pressure-temperature Class))
- Thickness (Schedule)
- Heat No
- Special marking if any QT (Quenched and tempered) or W (Repair by welding)
The final process of dispatch is the most tedious of all , and heavy duty cranes are used for it. With the help of our extensive delivery chain we can ensure time critical deliveries at the behest of our esteemed clients. We are indeed privileged to be able to serve and live upto their expectations and occupy unparalleled postion of Flange makers in China.
- ANSI B16.5
- ANSI B16.47 Series A & B
- MSS SP44
- Custom Drawings
- TUV INDIA PVT. LTD (TUV)
- BUREA VERITAS INDUSTRIAL SERVICES (INDIA) PVT. LTD (BVIS)
- SIGNATE ENGINEERS PVT. LTD
- TWINAR ENGINEERS
- BAX COUNSEL INSPECTION BUREAU PVT. LTD
- Products are packaged to ensure that there is no damage during transit.
- In case of exports, standard export packaging is done in wooden cases.
- All flanges are marked with Grade, Lot No, Size, Degree and our trade mark.
- On special requests we can also, make custom marking on our products.
Stainless Steel Ring Type Joint Flanges :
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Ring Type Joint Flanges :
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Ring Type Joint Flanges :
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Ring Type Joint Flanges :
ASTM A350, LF2, LF3
Alloy Steel Ring Type Joint Flanges :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Copper Alloy Steel Ring Type Joint Flanges :
ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy Ring Type Joint Flanges :
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)
- Ring Type Joint Raised Face Flanges uses in Chemical Industry
- Ring Type Joint Pipe Flanges uses in Water Supply Systems
- Ring Type Joint Flange uses in General Purpose Applications
- Ring Type Joint Flanges uses in Structural Pipe