- Optimizable through the adjustment of the upper seat and diaphragm sizes for precision and to meet the criteria for pipeline connections
- The short pipe length on the lower body can be manufactured to match the piping’s thermal-insulation requirements.
- Durability for working environments using liquids that are high temperature, corrosive, sewage, or prone to crystallization
Diaphragm Seal for Melting High Temperature
Model: DIHI
- Used to measure molten state process media
- A capillary can be selected, suitable for remote observation
- Widely used in the synthetic chemical, synthetic fiber, and plastic industries
- Responsive after-sales service / Customizable
- High quality / One-year warranty
- Product images are for reference only. Final specifications are based on the confirmed order.
Description
The DIHI high-temperature melt diaphragm seal is engineered for measuring molten and high-temperature process media such as plastics, synthetic fibers, and chemicals. Built with a 316L stainless steel body and diaphragm, it withstands temperatures up to 330°C while maintaining stable and accurate pressure transmission. It is available with a rigid stem or an extended capillary design, making it ideal for applications requiring remote pressure indication. Compatible with both pressure gauges and transmitters, DIHI is widely used in plastic extrusion, chemical processing, and fiber production—offering a reliable and durable solution for extreme-temperature pressure measurement.
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Specifications
| Type | Rigid stem, rigid stem with capillary extension |
|---|---|
| Process connection |
|
| Scale ranges | 0 ... 100 bar to 0 ... 1000 bar, or all other equivalent pressure ranges |
| Material |
|
| Rigid stem |
|
| Capillary |
|
| Process medium temperature | 330℃ (Max.) |






