We are manufacturer, supplier & stockist of Stainless Stainless Steel 304L Thermowell, UNS S30403 Thermowell, 1.4306 Thermowell, BS 304S113 Thermowell.
Renine Metalloys LLP stands as a distinguished manufacturer, supplier, and stockist of thermowells, delivering precision-engineered temperature protection solutions to process industries worldwide. With extensive expertise in fabricating critical instrumentation components, the company has established itself as a trusted name for businesses seeking reliable thermowell solutions for temperature measurement and process control applications across diverse industrial sectors.
As a premier thermowell manufacturer, Renine Metalloys LLP specializes in producing high-quality thermowells in various materials including stainless steel thermowells, carbon steel thermowells, Inconel thermowells, Monel thermowells, and Hastelloy thermowells. The company's advanced manufacturing facility produces thermowells in multiple configurations such as flanged thermowells, threaded thermowells, socket weld thermowells, and welded thermowells, ensuring compatibility with diverse process conditions and temperature sensor requirements.
The comprehensive inventory maintained by Renine Metalloys LLP as a dedicated thermowell stockist enables quick delivery and immediate availability of products in standard and custom designs. Whether clients require straight shank thermowells, tapered thermowells, stepped thermowells, or custom-designed thermowells, the company's flexible manufacturing capabilities ensure that specific application requirements are met with precision. This positions them as a dependable thermowell supplier capable of handling both urgent replacements and large-scale project orders.
Quality assurance is paramount at Renine Metalloys LLP. Every thermowell undergoes rigorous testing including dimensional verification, pressure testing, wake frequency calculations, and material certification. The company adheres to international standards such as ASME PTC 19.3 TW, ensuring that each industrial thermowell provides optimal protection for temperature sensors while maintaining process integrity and safety.
Understanding the critical role of thermowells in protecting temperature instruments from harsh process conditions including high pressure, corrosive media, and extreme temperatures, Renine Metalloys LLP offers expert engineering support. Their technical team assists with thermowell selection, wake frequency analysis, and material compatibility assessments, ensuring optimal performance and longevity in applications across oil and gas, chemical processing, petrochemical, pharmaceutical, and power generation industries.
With competitive pricing, certified quality products, and efficient delivery network, Renine Metalloys LLP serves as your comprehensive partner for all thermowell requirements, supporting safe and accurate temperature measurement in critical industrial processes with unwavering reliability and technical excellence.
Stainless Steel 304L Thermowell Manufacturer, 1.4306 Thermowell Stockist, UNS S30403 Thermowell Supplier, BS 304S11 Thermowell Exporter.
Specifications
| Standard | ANSI B16.5, DIN, JIS, BS |
| Thermowell Type | Straight / Tapered / Stepped |
| Mounting Style | Threaded (NPT/BSP), Flanged, Socket Weld, Weld-in, Van-Stone |
| Process Connection Size | ½" to 4" (NPT), or Flange: 150#, 300#, 600#, 900#, 1500#, 2500# |
| Size | 4”, 6”, 8”, 12”, 18” Customization is Possible. |
| Shank OD | 6 mm, 8 mm, 10 mm, 12.7 mm, 16 mm, 22 mm, custom |
| Bore Size | 6 mm, 6.5 mm, 8 mm, 9 mm, 12 mm |
| Insertion Length (U-dimension) | 50 mm to 1200 mm |
| Lagging Extension (T-dimension) | Customized: 25–200 mm |
| Overall Length (OAL) | U + T + head length |
| Temperature Rating | –196°C to +800°C (material dependent) |
| Surface Finish (External) | 1.6–3.2 Ra µm |
| Surface Finish (Internal Bore) | 0.8–1.2 Ra µm |
| Finishing | As per material. |
| Tip Thickness | 2 mm to 7 mm |
| Tip Style | Conical / Hemispherical / Flat |
| Weld Type (if welded) | Full-penetration TIG weld |
| Sensor Compatibility | RTD, Thermocouple (J, K, T, N, R, S, B) |
| Thread Type (for threaded wells) | NPT, BSPP, BSPT |
| Coatings (Optional) | PTFE, Ceramic, Electro-polishing |
| NDT Testing | Hydrotest, Dye-Penetration, Ultrasonic, PMI |
| Certification | EN 10204 3.1 / 3.2, IBR (if applicable), Material Test Certificate |
Available type of thermowell
UNS S30403 Stainless Steel Thermowell
BS 304S11 Flanged Thermowell
EN 58E Sanitary Stepped Thermowell
1.4306 Socket Weld Thermowell
X2CrNi19-11 Weld In Thermowell
JIS SUS 304L Threaded Thermowell
UNS S30403 Van Stone Thermowell
JIS SUS 304L Vortex Thermowell
Equivalent
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304L | 1.4306/1.4307 | S30403 | SUS 304L | 3304S11 | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
Chemical composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304L | 0.035 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 13 | – |
Stock available at our warehouse
| JIS SUS 304L Welded Thermowell | X2Crni19-11 Pointed Tip Thermowell |
| UNS S30403 Welded Thermowell | EN 58E Thermowell |
| X2Crni19-11 Sanitary Stepped Thermowell |
JIS SUS 304L Pointed Tip Thermowell
|
| Stainless Steel 304L Vortex Thermowell |
X2Crni19-11 Solid Bar Stock Thermowell
|
| 1.4306 Conical Thermowell | EN 58E Van Stone Thermowell |
| Stainless Steel 304L Fabricated Thermowell | BS 304S11 Multipoint Thermowell |
| UNS S30403 Weld In Thermowell | X2Crni19-11 Flanged Thermowell |
| Stainless Steel 304L Threaded Thermowell |
UNS S30403 High Velocity Thermowell
|
| JIS SUS 304L Mini Thermowell | UNS S30403 Scruton Thermowell |
| Stainless Steel 304L Wake Frequency Thermowell | 1.4306 Tapered Thermowell |
Industries We Serves
Chemical industries
Desalination plant
Oil and Gas
Petroleum Refinery
Pharmaceutical industries
Refinery plant
Flanges
block
Testing Facilities
