Key facts
- Manuals
- 2
- Models
- 2
- Languages
- DE
- Last added
- 2012-03-19
LESER-Type models by category
Featured LESER-Type manuals
LESER 441/442 DIN Datasheet
The LESER 441/442 DIN series are flanged spring safety valves offered in conventional and stainless‑steel bellows constructions. The document lists the various component parts, material options and part numbers for each variant.
Key data include DN size ranges, pressure and temperature limits, material grades for caps, screws and seals, as well as ordering codes for different configurations. Dimensional tables and weight figures are provided for each size. This manual is written in German.
Covers: Type 441/442 DIN · Werkstoffe · Abmessungen und Gewichte · Artikel-Nummern · Druck-/Temperatur-Einsatzbereiche · Zusatzausrüstungen
Leser Type 441/442 DIN Safety Valve Technology Data
The document provides detailed information on the Leser Type 441/442 DIN flange‑spring safety valve, covering both conventional and stainless‑steel bellows versions. It lists the available materials for each component, such as housing, spring, and sealing elements, and describes the different configurations (open, closed, H2/H3/H4 caps, etc.).
Key specifications include DN size ranges, pressure and temperature limits, and ordering numbers for each variant. Additional accessories and optional parts are listed in the final sections, with references to further pages for more details. This manual is written in German.
Covers: Flansch-Feder-Sicherheitsventil · Werkstoffe · Abmessungen und Gewichte · Druck-/Temperatur-Einsatzbereiche · How to order — Artikel-Nummern · Zusaizausrustungen
Latest LESER-Type manuals
LESER 441/442 DIN Datasheet
Datasheet 10 pages · 443 KB · DEThe LESER 441/442 DIN datasheet provides specifications, dimensions, materials, and ordering information for the flanged spring safety valve.
Leser Type 441/442 DIN Safety Valve Technology Data
Datasheet 10 pages · 443 KB · DETechnical data for Leser Type 441/442 DIN safety valves, including materials, dimensions, pressure and temperature ranges.
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in LESER-Type manuals
What material options are available for the valve housing?
The housing can be made of Grauguss (0.6025), Duktil Gr. 60‑40‑18 (0.7043), WCB (1.0619) or CF8M (1.4408).
What is the pressure range for the standard bellows version?
The standard bellows operates from a minimum of 15 psig up to a maximum of 435 psig.