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SJ Gauge extended diaphragm seal with flanged process connection

Flanged Connection with Extended Diaphragm

Model: DIF-E
  • Upper body of the diaphragm seal, the extended diaphragm and the wetted parts can be made of identical or different materials
  • As an alternative, the diaphragm and the extended diaphragm can be coated
  • Used for contaminated, solidifying, hot or highly viscous media such as thick walled or isolated tanks and pipelines
  • Responsive after-sales service / Customizable
  • High quality / One-year warranty
  • Product images are for reference only. Final specifications are based on the confirmed order.
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Description

The DIF-E extended diaphragm seal is designed for applications involving contaminated, solidifying, high-temperature, or highly viscous media. Its extended diaphragm structure allows the sensing element to reach deeper into insulated or thick-walled tanks and pipelines, ensuring stable and accurate pressure transmission. The upper body, wetted parts, and diaphragm can be made from identical or different materials, and optional coatings such as PTFE or PFA enhance corrosion resistance. This makes the DIF-E an ideal solution for challenging industrial environments such as chemical processing, petrochemical plants, and applications that require reliable performance with aggressive or difficult media.

Product Images

Flange-type with extended diaphragm
Flange-type with extended diaphragm

Downloads

English

SJ-Gauge-DIF-E-diaphragm-seal-datasheet-en

Traditional Chinese

SJ-Gauge-DIF-E-diaphragm-seal-datasheet-zh-tw

Specifications

Type of process connectionANSI/ASME B16.5, JIS, DIN 2527
Nominal diameter1 1/2", 2", 3", 4"
Instrument connection
  • 1/4, 3/8, 1/2
  • PT, G, NPT, M
Scale ranges
  • Pressure gauge:
  • 1 1/2": 0 ... 4 bar to 0 ... 40 bar
  • 2": -1 ... 3 bar, 0 ... 2.5 bar to 0 ... 40 bar
  • 3", 4": -1 ... 1.5 bar, 0...0.6 bar to 0 ... 40 bar
  • Transmitter:
  • 1 1/2"：0 ... 0.25 bar to 0 ... 40 bar
  • 2"：-1 ... 0.6 bar, 0 ... 0.25 bar to 0 ... 40 bar
  • 3"、4": -1 ... 0.6 bar, 0 ... 0.1 bar to 0 ... 40 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, Titanium, Monel 400, Nickel 200
  • Diaphragm: 316L SS, Hastelloy C276, Titanium, Tantalum, Monel 400, Nickel 200
Medium temperature0℃ ... 80℃, 81℃ ... 200℃, 201℃ ... 400℃
OthersWelded with instrument, coating (PTFE or PFA), capillary with handling tube, cooling element

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