- 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
Flanged Connection with Dual Diaphragm
Model: DIF-S
- Lower pressure ranges can be measured to meet pipeline connection needs and accuracy
- An alternative when flange diaphragm seal – “I” section type cannot be used due to lack of space
- Applicable for strict working environments including biogas, oil, gas fracking and biodiesel, etc
- 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 DIF-S features a dual-diaphragm structure that allows accurate measurement in lower pressure ranges, making it an ideal solution where traditional “I-section” flange diaphragm seals cannot be installed due to limited space. It is designed for harsh media such as biogas, crude oil, gas-fracking fluids, and biodiesel applications. Compatible with ANSI/ASME, JIS, and DIN2527 flanges, the DIF-S supports both pressure gauges and transmitters, with optional flush ports and metal or PTFE linings for enhanced corrosion resistance and easy maintenance.
Specifications
| Type of process connection | ANSI/ASME B16.5, JIS, DIN 2527 |
|---|---|
| Nominal diameter | 1/2", 3/4", 1", 1 1/4" |
| Instrument connection | 1/4, 3/8, 1/2 PT, G, NPT, M |
| Scale ranges | Pressure gauge: 1/2", 3/4": 0 ... 4 bar to 0 ... 40 bar 1", 1 1/4": -1 ... 3 bar, 0 … 2.5 bar to 0 ... 40 bar Transmitter: 1/2", 3/4": 0 ... 0.4 bar to 0 ... 40 bar 1", 1 1/4": -1 ... 0.6 bar, 0 ... 2.5 bar to 0 ... 40 bar or all other equivalent vacuum or combined pressure and vacuum ranges |
| Material | Upper body: 304 SS, 316 SS, 316L SS, Dual phase steel, Hastelloy C276, Tantalum, Titanium, Monel 400, Nickel 200 Lower body: 304 SS, 316 SS, 316L SS, Dual phase steel, Hastelloy C276, Tantalum, Titanium, Monel 400, Nickel 200 Diaphragm: 316L SS, PTFE, Hastelloy C276, Titaniuｍ, Tantalum, Monel 400, Nickel 200, Silicone, Viton, 316L+PTFE Coating |
| Medium temperature | 0℃ ... 80℃, 81℃ ... 200℃, 201℃ ... 400℃ |
| Others | Welded with instrument, flush port, coating (PTFE or PFA), lining (metal or PTFE), capillary, cooling element |
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