Flanged Connection with Extended Diaphragm

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
The image is for reference; the actual product willbe based on your custom specifications.

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.

Specifications

Type of process connection	ANSI/ASME B16.5, JIS, DIN 2527
Nominal diameter	1 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 temperature	0℃ ... 80℃, 81℃ ... 200℃, 201℃ ... 400℃
Others	Welded with instrument, coating (PTFE or PFA), capillary with handling tube, cooling element