Diaphragm Seal with Flange Connection
Flanged Diaphragm Seals
Diaphragm seals with flange connections are a common diaphragm seal device used to protect pressure sensors or transmitters from erosion and damage by process media. It fixes the diaphragm device to the process pipeline through a flange connection and ensures stable and reliable operation of the pressure measurement system by isolating corrosive, high-temperature, or high-pressure process media.
Diaphragm seals with flange connections are suitable for various industrial fields such as chemical, petroleum, pharmaceutical, food and beverage, especially when it is necessary to measure the pressure of corrosive media, high-temperature, or high-pressure media. They protect pressure sensors from media erosion while ensuring accurate transmission of pressure signals to meet the needs of process control and monitoring.
Winners offers flanged diaphragm seals in accordance with ASME B 16.5, DIN EN 1092-1 or other standards. We also offer other accessories such as flushing rings, capillaries, flanges, metal diaphragms, etc.
Flanged Diaphragm Seal Specifications
| Product Name | Flanged diaphragm seals |
| Process Connection | Flanges according to ANSI/ASME B 16.5, DIN EN1092-1 |
| Flange Material | SS316L, Hastelloy C276, Titanium, Other materials on request |
| Diaphragm Material | SS316L, Hastelloy C276, Titanium, Tantalum, Other materials on request |
| Instrument Connection | G ½, G ¼, ½ NPT, other threads on request |
| Coating | Gold, Rhodium, PFA and PTFE |
| Flushing Ring | Optional |
| Capillary | Optional |
Advantages of Flanged Diaphragm Seals
Strong sealing: Double sealing (flange + diaphragm) almost eliminates leakage, especially suitable for toxic, flammable or high-value media.
Excellent corrosion resistance: The diaphragm material (such as PTFE, titanium alloy) can resist strong acids and alkalis, reducing the risk of equipment corrosion.
Adapt to extreme environments: Withstand high pressure (up to 40MPa), high temperature (+400°C) and high viscosity, particle-containing media.
Safety and hygiene: Isolate the medium from contact with the outside, in line with the sterility standards of the pharmaceutical and food industries (such as FDA, GMP).
Economical and efficient: The equipment life is extended in long-term use, and the overall cost is lower.
Application
• Chemical industry: handling corrosive liquids (such as sulfuric acid, chlorine, and alkali).
• Pharmaceuticals and food: aseptic filling, high-purity medium transmission.
• Energy field: high-temperature and high-pressure oil and gas pipelines, reactor sealing.
• Environmental protection engineering: isolation of corrosive media in wastewater treatment.
How to Order
Diaphragm seal:
Diaphragm seal type, process connection (standard, flange size, nominal pressure and sealing surface), material (flange and diaphragm material, standard is SS316L), optional accessories: matching flange, flushing ring, capillary, etc.
We support the customization of diaphragm seals, including flange material, model, sealing surface (coating customization), etc. Please contact us for details.
