We are manufacturer, supplier & stockist of Stainless Steel 317L Thermowell, 1.4438 Thermowell, UNS S31703 Thermowell, JIS SUS 317L 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 317L Thermowell Manufacturer, JIS SUS 317L Thermowell Stockist, UNS S31703 Thermowell Supplier,1.4438 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
1.4438 Stainless Steel Thermowell
UNS S31703 Flanged Thermowell
JIS SUS 317L Sanitary Stepped Thermowell
EN X2CrNiMo18-16-4 Socket Weld Thermowell
1.4438 Weld In Thermowell
UNS S31703 Threaded Thermowell
JIS SUS 317L Van Stone Thermowell
EN X2CrNiMo18-16-4 Vortex Thermowell
Equivalent
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 317L | 1.4438 | S31703 | SUS 317L | – | – | – | – |
Chemical composition
| Element | Composition | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317L | 0.035 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 18 – 20 | 3.0-4.0 | 11.0-15.0 | 57.89 min |
Stock available at our warehouse
| JIS SUS 317L Mini Thermowell |
EN X2Crnimo18-16-4 Wake Frequency Thermowell
|
| UNS S31703 Multipoint Thermowell | JIS SUS 317L Multipoint Thermowell |
| Werkstoff Nr. 1.4438 Straight Thermowell | EN X2Crnimo18-16-4 Flat Tip Thermowell |
| Werkstoff Nr. 1.4438 Tapered Thermowell |
Werkstoff Nr. 1.4438 Solid Bar Stock Thermowell
|
| JIS SUS 317L Solid Bar Stock Thermowell | UNS S31703 Conical Thermowell |
| Werkstoff Nr. 1.4438 Fabricated Thermowell | UNS S31703 Threaded Thermowell |
| Werkstoff Nr. 1.4438 Threaded Thermowell | UNS S31703 Scruton Thermowell |
| UNS S31703 Flanged Thermowell | JIS SUS 317L Thermowell |
| EN X2Crnimo18-16-4 Stepped Thermowell | JIS SUS 317L Retractable Thermowell |
| Werkstoff Nr. 1.4438 High Velocity Thermowell |
EN X2Crnimo18-16-4 Fabricated Thermowell
|
Industries We Serves
Chemical industries
Desalination plant
Oil and Gas
Petroleum Refinery
Pharmaceutical industries
Refinery plant
Flanges
block
Testing Facilities
