LESER Change-over Valve
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Products advantages
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n Technologically-sound and inexpensive alternative to nickel-based alloys (such as Hastelloy®). |
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n Standardised solutions for special applications such as those involving critical and toxic media. |
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n Combine safety valve know-how with a level-based PTFE equipment and lining concept. |
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n Are developed and optimised in close cooperation with plant engineers and service specialists to protect processes with highly corrosive and toxic media. |
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n Are approved by all important classification societies world-wide. This ensures the worldwide applicability of LESER Critical Service safety valves. |
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n All types of chemicals and media that are classified as being corrosive, highly corrosive, toxic or hazardous |
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n TFE can also be used in EX areas, due to the antistatic and electrically conductive PTFE compound |
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n One design and spring (single trim) for steam, gas and liquid applications reduces the number of spare parts and ensures low cost maintenance management. |
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n Self-draining body design, avoids residues and reduces corrosion |
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Technical specifications |
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Nominal Diameter at Inlet |
DN 25 - DN 100 | 1" - 4" |
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Actual Orifice Diameter d₀ |
23 mm - 92 mm | 0.91 in - 3.62 in |
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Actual Orifice Area A₀ |
415 mm² - 6.648 mm² | 0.645 in² - 10.304 in² |
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Set Pressure |
0.1 bar - 16 bar | 1.45 psig - 232 psig |
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Temperature |
-85 °C to 200 °C | -121 °F to 392 °F |
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Body Material |
1.0460, 1.0619 | SA 105, SA 216 WCB |
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Valve Connection |
Flange in accordance with DIN EN 1092-1 and ASME B 16.5 |
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Bellows Material (optional) |
Stainless steel, PTFE, Hastelloy C276 |
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Load Type |
Spring-loaded |
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Approvals |
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Industries |
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