MIJ - Insulation Joint
PetroSan Oilfield Engineering Co.—previously known as PetroSan—was founded in 2020. It is the best fabrication and manufacturing firm in South Asia, renowned for its exceptional quality and punctual delivery. We are the industry pioneers in manufacturing of MIJ-Insulation joint or monolithic insulation joint. Our superior products set the standard for other producers.
With its distinctive products, Petrosan leads the industry in brand recognition and is among the greatest, biggest, and most established manufacturer of Insulation joint for high-temperature applications, Corrosion-resistant insulation joint, Erosion-resistant insulation joint, Insulation joint for chemical plants, Insulation joint for power plants, Insulation joint for refineries, Monolithic insulation for flanges, Insulation joint for steam lines, Insulation joint for gas lines
A monolithic insulation joint refers to a type of insulation joint used in piping systems, where a single, solid piece of insulation material is used to cover and insulate a flanged connection or joint. This type of joint is typically used in high-temperature applications, such as in power plants, refineries, and chemical processing facilities.
Monolithic insulation joints offer several benefits, including:
1. Improved thermal efficiency
2. Reduced heat loss
3. Increased safety
4. Enhanced durability
5. Simplified installation and maintenance
- The fitting is one-piece and cannot be dismantled, so it does not require any maintenance.
- A very wide range of materials is proposed :
- Forged (SA 350 LF2; P355QH-P420QH; A694 F52 / F65 /…
- Tubes (API 5L Gr.B X52 / X65 /…; L245 / L290 / L360 / L415; SA333 Gr.6; 304L / 316L)
- Other on request
- A wide range of sizes (1/2 “- 36”)
- A wide range of pressures (Class 150- Class 2500)
- ½ “- 8” Class 600 Fittings are stored.
- Products are hydraulically and electrically tested.
Although pipes that correspond to other standards can also be utilized, seamless tubes that meet API 5L requirements are currently in use. Typically, the forged rings, or flanges, are in accordance with ASTM A694, A370, or A105. As per ASME IX requirements, the welds are Butt Welds.
| Range | PetroSan-MIJ |
|---|---|
| Size | 1” to 48” |
| Class | From ANSI 150 to 2500 |
| Design Temp | |
| Normal Temp | -46°C to 95°C. |
| High Temp | Up to 250°C (On Customer request) |
| Pressure | |
| Design Pressure | As per ANSI B16.25 |
| Test Pressure | 1.5 times X Design Pressure |
| Standard Features | |
| Insulating Ring | ASTM D709 G10 TY IV |
| Seals | Nitile / Viton |
| Coating | Epoxy Resin (Min 200µ) |
| Service | Sweet / Sour |
| Location | Onshore / Offshore |
| Suitable | Below / Above Ground |
| Metallic Parts | |
| Rings | ASTM A105, ASTM A694, F42 – F70 |
| Pup Pieces | Pup Pieces |
| Electrical Features | |
| Di – Electric Strength | 5 KV 50 Hz AC for 1 Min |
| Insulation Resistance | Min 1 Mega Ohm @ 1000V DC |
MIJ-INSULATION JOINT ADVANTAGES :
- No loss of integrity due to thermal expansion or ground stress as is common with flange isolation gasket kits.
- In-factory tested hydrostatically and electrically, to 1.5 times their working pressure. Non destructive testing is also available.
- Maintenance-free, reliable cathodic isolation of equipment in required isolation applications such as compressor stations.
- No labor intensive, complicated installation procedure required as is the case with isolation gasket kits,
- No inspection pits, vaults or maintenance needed – weld into place and direct bury – reliable, worry-free cathodic isolation.
- Non-conductive epoxy coatings help prevent shorts, both internally and externally.
- Isolation stray currents impressed on the pipe from exterior forces such as electrical transmission systems, earth currents and currents flowing from point to point.
- Excellent bending and torsional resistance.
- Earthquake resistant – acts as a thrust block or joint.
Principal codes, standards, and regulations, along with all appendices and modifications, that are relevant to the creation, production, and testing of monolithic joints
- ANSI B16.5 – “Pipe Flanges and Flanged Fittings”
- ANSI B31.8 – “Gas Transmission and Distribution Piping System”
- ANSI B31.4 – “Pipeline transportation system for liquid hydrocarbons and other liquids”
- ASME B16.25 – “Butt-welding Ends”
- ASME V – “NDE”
Standards
- Design : NACE, ASME Scc VIII, Shell
- Calculations : As per ASME Sec VIII
- Welding Procedure : As per ASME Sec IX, API1104, DNV710105
Testing
- Hydrostatic Test
- Pneumatic Test
- Fatigue Test
- NDE examinations
- Electrical Test:
- Insulation Resistance Test @ 1000 Volt DC
- Di – Electric Strength Test up to 5000 Volt 50 Hz AC
Special Test
- Helium Leak Test
- Holiday Test
- Adhesion Test
- Flange Displacement Test
Details required on enquiry
- Size & Rating
- Mating Pup Piece Details
- Materials (Pup /Body/Insulating Material)
- Design & Test Pressure
- Design Temperature
- Service
- Location
- Quantity
With its distinctive products, Petrosan leads the industry in brand recognition and is among the greatest, biggest, and most established manufacturer, fabricator and producers of MIJ-Insulation Joint.
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Insulation joint for high-temperature applications, manufacturer of Corrosion-resistant insulation joint, manufacturer of Erosion-resistant insulation joint, manufacturer of Insulation joint for chemical plants, manufacturer of Insulation joint for power plants, manufacturer of Insulation joint for refineries, manufacturer of Monolithic insulation for flanges, manufacturer of Insulation joint for steam lines, manufacturer of Insulation joint for gas lines and supplier of approved KOC, KNPC, ADNOC, Aramco Etc.
We Manufacture, Export and supply to many Countries as follows :
- ASIA – India, Japan, Thailand, Singapore, Sri lanka, Bangladesh, South Korea, Indonesia, Philippines, Vietnam, Kazakhstan, Azerbaijan, Turkmenistan.
- Middle East – Kuwait, Dubai, Saudi Arabia, Qatar, Oman, Bahrain, Jordan, Turkey, Iraq, Yemen, Syria, Azerbaijan, United Arab Emirates, Israel.
- Western Europe – Germany, France, Netherlands, Belgium, Austria, Switzerland, Luxembourg, Monaco, Liechtenstein
- Eastern Europe – Russia, Ukraine, Poland, Romania, Czechia, Hungary,Belarus, Bulgaria, Slovakia, Moldova
- Northern Europe – United Kingdom, Sweden, Denmark, Finland, Norway, Ireland, Lithuania, Latvia, Estonia, Iceland, Isle of Man, Faeroe Islands
- Southern Europe – Italy, Spain, Greece, Portugal, Serbia, Croatia, Bosnia and Herzegovina, Albania, North Macedonia, Slovenia, Montenegro, Malta, Andorra, Gibraltar, San Marino, Holy See
- South America – Argentina, Chile, Brazil, Colombia, Paraguay
- Western Africa – Nigeria, Ghana, Côte dIvoire, Niger,Burkina Faso, Mali, Senegal, Guinea, Benin, Togo, Sierra Leone, Liberia, Mauritania, Gambia, Guinea-Bissau, Cabo Verde, Saint Helena
- Northern Africa – Egypt, Sudan, Algeria, Morocco, Tunisia, Libya, Western Sahara
- Southern Africa – South Africa, Namibia, Botswana,Lesotho, Swaziland
- Eastern Africa – Ethiopia, Tanzania, Kenya, Uganda,Mozambique, Madagascar, Malawi, Zambia, Zimbabwe, South Sudan, Rwanda, Burundi, Somalia, Eritrea, Mauritius, Djibouti, Réunion, Comoros, Mayotte, Seychelles.