Zeron Fastners
Industrial Valves & FastenersJacketed Valves (Full & Semi Jacketed)
Jacketed Valves are engineered specialty valves wrapped in an external welded heating chamber through which steam, hot heat-transfer fluid, or hot water is circulated. These valves prevent high-viscosity or easily solidified fluids—such as liquid sulfur, bitumen, asphalt, molten pitch, fatty acids, and high-melt polymers—from cooling below their fluid state and freezing inside the valve body, ensuring smooth uninterrupted flow and zero valve seizure.
Zeron Fastners manufactures full jacketed and semi-jacketed Gate, Globe, Ball, Plug, and Check Valves in Class 150# through Class 600# in sizes 1/2" to 24". Built in Carbon Steel (WCB), Stainless Steel (304/316), and Monel with oversized end flanges that permit standard bolt clearance without touching the jacket walls.
Technical Specifications
| Specification Feature | Details & Standard Compliance |
|---|---|
| Design Standards | ASME B16.34, API 600, API 6D, BS EN 12516 |
| Size Range | 1/2" to 24" (DN15 - DN600) with Oversized End Flanges |
| Pressure Ratings | Class 150#, Class 300#, Class 600# (PN16 to PN100) |
| Jacket Working Pressure | Rated for 150 PSI (10 Bar) Saturated Steam / Hot Thermal Oil |
| Jacket Types | Full Body Flange-to-Flange Jacketing OR Partial Body Jacketing |
| Body Materials | ASTM A216 WCB, A351 CF8M, CF3M, Hastelloy C276, Alloy 20 |
| Jacket Materials | Fabricated Carbon Steel ASTM A106 Gr. B / SS 304/316 Seamless Pipe Jacket |
| Jacket Connections | 1/2", 3/4", or 1" Flanged or Screwed NPT Heating Inlets/Outlets |
| Testing Standard | API 598 (Dual Hydrostatic Testing of Core Body Chamber and Heating Jacket) |
Jacketed Valve Categories
| Type & Model | Key Features & Operating Applications |
|---|---|
| Jacketed Gate Valves | Wedge gate configuration keeps asphalt and heavy bitumen heated across storage tank manifolds. |
| Jacketed Ball Valves | Quarter-turn fast isolation with heated body bowl for chemical resins and molten wax. |
| Jacketed Plug Valves | Sleeved or lubricated plug valve with full heating jacket for toxic hot pitch lines. |
| Jacketed Check Valves | Heated non-return valves preventing slug freezing on sulfur recovery unit pump lines. |
