- 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
Threaded Connection, Welded
Model: DIT-W
- Fully welded design, without additional sealing
- For hot, hazardous or toxic media
- Mostly used in oil, gas and petrochemical 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 DIT-W welded diaphragm seal features a fully welded design without any additional sealing elements, making it ideal for hot, hazardous, or corrosive media. Its robust construction ensures stable pressure transmission and is widely used in oil, gas, petrochemical, and other high-safety industrial processes. Available in multiple thread sizes and materials (304/316/316L stainless steel, Hastelloy C276, Tantalum, Monel 400, Titanium, etc.), it can be paired with pressure gauges or transmitters, offering durability, reliability, and easy maintenance even in harsh environments.
Specifications
| Diameter | 48 mm, 70 mm, 82 mm, 90 mm |
|---|---|
| Process connection | Male, female, union nut and loose threaded 1/4, 3/8, 1/2, 3/4, 1 PT, G, NPT, M |
| Instrument connection | 1/4, 3/8, 1/2 PT, G, NPT, M |
| Scale ranges | 48 mm Pressure Gauge: 0 ... 4 bar to 0 ... 40 bar Transmitter: 0 … 4 bar to 0 ... 40 bar 70 mm Pressure Gauge: -1 ... 3 bar, 0 ... 2.5 bar to 0 ... 60 bar Transmitter: -1 ... 1 bar, 0 … 0.3 bar to 0 ... 60 bar 82 mm Pressure Gauge: -1 ... 60 bar 90 mm Pressure Gauge: -1 ... 1.5 bar, 0 ... 0.6 bar to 0 ... 60 bar Transmitter: -1 ... 0.6 bar, 0 … 0.1 bar to 0 ... 60 bar or all other equivalent vacuum or combined pressure and vacuum ranges |
| Material | Body: 304 SS, 316 SS, 316L SS, Dual Phase Steel, Hastelloy C276, Tantalum, Monel 400, Titanium, Nickel 200 Diaphragm: 316L SS, Hastelloy C276, Tantalum, Monel 400, Titanium, Nickel 200 |
| Medium temperature | 0°C ... 80°C, 81°C ... 200°C, 201°C ... 400°C |
| Others | Welded with instrument, flush port |






