DA series diaphragm seal is a general-purpose diaphragm seal suitable for various pressure measurement applications. It features a flush-mounted stainless steel separating diaphragm, laser-welded, optimized diaphragm base and can be directly welded, directly screwed, with temperature decoupler or with capillary connected to the measuring instrument.
This document provides technical specifications for the Labom DA series diaphragm seals, designed for general applications involving aggressive, highly viscous media, and high process temperatures. The seals feature a flush-mounted stainless steel separating diaphragm and are available in various flange types compliant with DIN EN and ASME standards.
The datasheet details material options, including standard stainless steel (1.4404/316L) and special materials like Tantalum or Hastelloy upon request. It also lists specific dimensions, nominal pressures, and connection codes for measuring instruments, such as direct welding or screwing, along with temperature influence data for different nominal widths.
| Application | Chemicals, Pharmaceuticals, Food industry |
|---|---|
| Flange material | Stainless steel mat. no. 1.4404 (316L) |
| Separating diaphragm material | Stainless steel |
| Diaphragm outline | Sinus-type |
| Temperature influence DN 50 standard | 0.8 mbar/10K |
| Temperature influence DN 80 LTC | 0.2 mbar/10K |
| Material certificate | DIN EN 10204-3.1 |
| Filling liquid standard | Silicon oil FS 20 |
The standard material is stainless steel, with further materials available upon request.
With LTC-technology, the temperature influence for DN 50 is 0.4 mbar/10K.
The standard filling liquid is silicon oil FS 20.