LESER Product Overview
Click on one of the
valves for details
valves for details
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Critical Service
PTFE-lined flanged safety valves for corrosive media such as chlorine, acids, and lyes. With their highly resistant lining they offer a safe solution for corrosive media.
Advantages
- PTFE parts in different designs for optimized resistance to highly-corrosive media
- Economical alternative to high-alloyed materials
- Carrier gas blanketing using double-walled pipes is possible
Technical Specifications
| Nominal Diameter at Inlet | DN 25 - DN 100 | 1" - 4" |
| Orifice | E - N | E - N |
| Actual Orifice Diameter d0 | 23 mm - 92 mm | 0.91 in - 3.62 in |
| Actual Orifice Area A0 | 415 mm² - 6.648 mm² | 0.645 in² - 10.304 in² |
| Pressure | 0.1 bar - 16 bar | 1.45 psig - 232 psig |
| Temperature | -85 °C to 200 °C | -121 °F to 392 °F |
| Body Material | 0.7043, 1.0460, 1.0619, 1.4404 | Ductile Gr. 60-40-18, Sa 216 WCB, 316L |
| Valve Connection | Flange in accordance with DIN EN 1092-1 and ASME B 16.5 |
| Bellows | Stainless steel, PTFE |
| Load Type | Spring loaded |
Approvals
Industries
- Chemical Industry (Chlorine manufacture and processing; Chemical plants and pipelines; Reduced media such as acids or lyes)
Valve Types
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Type 546
Continuous nozzle out of PTFE, rare activation of the safety valves
DN 25 - DN 100 (1" - 4") -
Type 449
Block body valve with flushing protective gas, all special materials available
DN 25 - DN 100 (1" - 4") -
Type 5466
Higher corrosion protection by PTFE-nozzle, protective coating at the outlet area and PTFE-bellows
DN 25 - DN 50 (1" - 2") -
Type 447
PTFE-full lining at the inlet and outlet area for high corrosive medium
DN 25 - DN 100 (1" - 4")
