PTFE is considered inert towards nearly all known chemical elements and it is insoluble in all solvents. It is only attached by elemental alkali metals, and by Chlorine Trifluoride and elemental Fluorine at high temperatures and pressures. Fluorinated hydrocarbons can have a swelling effect on PTFE but it is a reversible situation, while some fluorinated oils, around 300
The ABB Model M26 is a manifold line engineered specifically for use with 2600T Series Pressure Transmitters. It offers comprehensive wetted material portfolios, primarily utilizing PTFE and Graphoil to ensure chemical inertness and resistance across wide temperature ranges.
Available in two-valve, three-valve, and five-valve configurations, the manifold supports various connection types including threaded NPT and flanged interfaces compliant with IEC61518/B. The product is supplied with standard parts such as PTFE gaskets, plugs, and bolts, ensuring a perfect interface between the process and the transmitter.
| Compatible Transmitters | 2600T Series Pressure Transmitters |
|---|---|
| Body Material Options | AISI 316 L ss; Hastelloy C-276™; Monel 400™; Inconel 625 |
| Gasket Material (Standard) | PTFE |
| Maximum Temperature (PTFE) | +250°C (+482°F) |
| Maximum Temperature (Graphoil) | +600°C (+1112°F) |
| Two-Valve Manifold Rating | 690 bar (69 MPa, 10000 psi) |
| Three/Five-Valve Manifold Rating | 413.3 bar (41.37 MPa, 6000 psi) |
| Connection Types | Threaded NPT and Flanged IEC61518/B |
The body, bonnet, and nut can be made of AISI 316 L ss, Hastelloy C-276™, Monel 400™, or Inconel 625.
PTFE packing can be used over a wide temperature range from -250°C to +250°C.
Yes, Graphoil may be used up to +600°C and is generally used in high temperature processes.
Standard supplies include PTFE gaskets, plugs (1/4" NPT-M), Carbon Steel bolts, and compliance certificates.