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Library› Engine Room› Industrial Valves› Safety / Relief Valve› LESER GmbH Modulate ActionType 431, 433
LESER GmbH

Modulate ActionType 431, 433

Safety / Relief Valve · Industrial Valves

Class-certified type (DNV register) · technical data sheet not yet verified

Standard Safety valves with rolled-in seat, DIN and ASME flange connections

Specifications

Technical data.

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Set pressure (according to CE)0,2 – 40 bar | 2,9 – 580 psig
Temperature (according to CE)-270 to 450 °C | -454 to 842 °F
Connections DIN EN 1092DN 15 - DN 150
Connections ASME B16.5NPS 1/2 - NPS 6
Flange class Inlet DIN EN 1092PN 16 - PN 40
Flange class Inlet ASME B16.5Class 150 - Class 300
Body material0.6025, 0.7043, 1.0619, 1.4408 | Gr. 60-40-18, SA 216 WCB, SA 351 CF8M
Narrowest flow diameter d₀12 - 92 mm | 0.47 - 3.62 in
Narrowest flow area A₀113 – 6.648 mm² | 0,175 – 10,304 in²
Bellows material (optional)Stainless steel and elastomer
pdf_Flange thickness is smaller (max2 mm), see “Multiple pressure rating”
pdf_Flange drilling as specified in standardFlange thickness may be less than the flange outer diameter as specified
pdf_Body material is certified accto 3.1 (EN 10204) for the following materials
pdf_Body material0.6025 (cast iron)
pdf_Standard flange classFor other flange drillings, refer to page 18.
Pdf approval-no072020111Z0008/0/06
pdf_Height (H4) Standard H max307
pdf_PN 40 accto DIN EN 1092 in µm
Pdf pressurein systems with multiple safety valves
Pdf the nanometer rangevalve on site.
Pdf nozzles can be stellited by weld claddingStellite is a cobalt- with highly stressed sealing surfaces
Pdf seal manufacturerLESER assumes no guarantee.
Pdf rules and regulations and standardsThrough a special design,
pdf_Type DIN EN 60947-5-6 (NAMUR)The indicators are approved for
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Download datasheet (PDF) (7937 KB)
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