Flanged Connection with Stub Pipe, Corrosion-resistant Plastic
- Upper seat and diaphragm can be enlarged to ensure precision and compliance with pipeline connection standards
- Applicable for media that are corrosive, viscous, powdery, harmful or toxic to the environment
- Ideal for industries such as petrochemical, chemical equipment construction, sewage treatment, paper, etc.
- Responsive after-sales service / Customizable /
- High quality / One-year warranty
- The image is for reference; the actual product willbe based on your custom specifications.
Description
The DIFF-P diaphragm seal features a flanged connection with a stub-pipe design, providing excellent corrosion resistance for challenging process conditions. It is engineered for measuring corrosive, viscous, powdery, hazardous, or environmentally sensitive media. The enlarged upper seat and diaphragm ensure accurate pressure transmission while meeting various pipeline connection standards. Available in PP, PVC, PVDF, and PTFE body materials, with diaphragm options such as PTFE, Hastelloy C276, Titanium, Tantalum, and Monel 400, the DIFF-P adapts to a wide range of corrosive applications. It is widely used in chemical processing, petrochemical plants, wastewater treatment, paper manufacturing, and other demanding industrial environments, offering a stable and reliable pressure-measurement solution.
Specifications
| Diameter | 70 mm, 90 mm, 130 mm, 160 mm |
|---|---|
| Type of process connection | ANSI/ASME B16.5, JIS, DIN 2527 |
| Nominal diameter | 1/2", 3/4", 1", 1 1/4", 1 1/2", 2" |
| Instrument connection | 1/4", 3/8", 1/2" PT, G, NPT, M |
| Scale ranges | 70 mm: Pressure gauge: 0 … 4 bar to 0 … 10 bar Transmitter: 0 … 0.4 bar to 0 … 10 bar 90 mm: Pressure gauge: -1 … 0 bar to -1 … 10 bar Transmitter: 0 … 0.01 bar to -1 … 10 bar 130 mm: Pressure gauge: 0 … 0.25 bar to -1 … 10 bar Transmitter: 0 … 0.01 bar to -1 … 10 bar 160 mm: Pressure gauge: 0 … 0.1 bar to -1 … 10 bar Transmitter: -0.05 … 0.05 bar to -1 … 10 bar or all other equivalent vacuum or combined pressure and vacuum ranges |
| Material | Upper body: PP, PVC, PVDF, PTFE Lower body: PP, PVC, PVDF, PTFE Diaphragm: PTFE, Hastelloy C276, Titanium Tantalum, Monel 400, Nickel 200, Silicone, Viton 316L+PTFE, 316L+PTFE Coating |
| Medium temperature | 0℃ ... 80℃ (PVC/PP), -40℃ ... 140℃ (PVDF), -200℃ ... 260℃(PTFE) |






