HIGH TEMPERATURE NEEDLE VALVE Built to withstand elevated temperatures (often exceeding 400°C), these valves use heat-resistant alloys like stainless steel, Inconel, or Hastelloy. They are used in steam systems, thermal oil circuits, and high-temperature chemical processes. Design considerations include thermal expansion, oxidation resistance, and seat integrity.
PR-FECT VALVES manufactures High Temperature Needle Valve in a wide range of sizes, materials, and pressure ratings, ensuring compatibility with diverse industrial applications and offering advanced technical features such as precision-machined gates and corrosion-resistant coatings for enhanced performance and durability.
| PRODUCT DETAILS | |
|---|---|
| Sizes | 1/4" to 12" |
| Pressure Class Ratings | ASME #150 to #4500 |
| End Connection | Screwed, Socket Weld, Flanged, Butt-Weld |
| Construction Types | O.S & Y. Rising Stem, Inside Screw, others upon request |
| Salient Features | Rugged construction, Bellow SealMetal Seats, Back Seating, Stem Extension, Cryogenic, Locking Arrangements etc. |
| Operator / Actuator | Handwheel, others upon request |
Note: Customized design available upon request, with pressure class ratings available in PN, PSI, BAR, kPa, and additional units to suit project specifications and regional standards.
| STANDARDS SPECIFICATIONS | |
|---|---|
| Design & Manufacture | API 602, ASME B16.34, BS 5352 |
| Face To Face | ASME B16.10, MFG Standard |
| End Connections | ASME B16.11, ISO 7-1, BS 21 ASME B1.20.1, ASME B16.5/ B16.47 RF/FF/RTJ ASME 16.25, EN 1092 |
| Testing | API 598, ASME B16.34 |
| Fire safe testing | ISO 10497/ API 607, API 6FA |
| Nace | NACE MR0175 / ISO 15156 and NACE MR0103 / ISO17945 |
| Fugitive emission | ISO 15848-1, API 624 |
Note: We’re flexible beyond the listed standards and happy to align with your specific needs.
| MATERIAL OF CONSTRUCTION | |
|---|---|
| Body / Bonnet / Yoke | Carbon Steel (ASTM A216 WCB, WCC, WCA, ASTM A105, ASTM A181), Low Carbon Steel (ASTM A352 LCB, LCC, ASTM A350 LF2), Stainless Steel (ASTM A351 CF8, ASTM A182 F304, ASTM A351 CF8M, ASTM A182 F316, ASTM A351 CF3, ASTM A182 F304L, ASTM A351 CF3M, ASTM A182 F316L, ASTM A351 CG8M, ASTM A182 F317, ASTM A182 F904L, ASTM A351 CK20, ASTM A182 F310, ASTM A351 CE8MN) Nickel alloys (B564 Monel, Inconel B564, B366), High Temp Alloys (Inconel 600, Inconel 625, Inconel 718, HastealloyX, Titanium Aloy) Duplex Stainless Steel (Duplex 2205, Super Duplex 2507, Lean Duplex 2101, Duplex 2304) Ductile Iron (ASTM A126 /ASTM A536, GGG50, GGG40) |
| Trim | Stainless Steel (SS304, SS316, SS304L, SS316L, SS317, SS310, SS904L), Nickel alloys, Duplex Stainless Steel, Exotic Materials. |
| Seat | HF-Metal to Metal Seats, others upon request |
| Stem Packing & Seals | PTFE/ RPTFE/ Special filled PTFE/Graphite/Graphoil |
| Gaskets | PTFE/ RPTFE/ Special filled PTFE/Graphite/Graphoil/Spiral Wounded |
| Fasteners | ASTM A193 Gr.B7/A194 Gr.2H, B7M/2HM, B8/8, B8M/8M, L7/4, B16/2H etc. |
Note: Additional material grades can be provided upon request to suit specific application requirements.