Safety; Proper Use - Leser 4401 Instrucciones De Servicio

Operating Instructions
Source of the danger
EN
Consequences if the danger is disre-
garded
• Measures to counter the danger and to
prevent injuries.
The basic safety guidelines are summa-
rised in chapter 2.4. Warnings are found in
the handling instructions.
Individual paragraphs that only apply to
specific types of safety valves are identi-
fied with a letter.
The following letters are used
for marking paragraphs:
• A for spring-loaded safety valves,
• B for pilot-operated safety valves,
• C for supplementary loaded safety
valves,
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Safety

2.1 Proper Use

Safety valves come in different designs.
When choosing a safety valve, the desig-
nated purpose must be taken into consid-
eration. Only use safety valves for the me-
dia for which they are intended in line with
the nameplate designation.
A safety valve is designed for operation
within a specific pressure range and a
maximum mass flow.
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The maximum permissible operating pres-
sure depends on several factors, including:
• the material of the safety valve,
• the temperature of the medium,
• the design pressure,
• the flange rating class.
The product-related technical documents
must be used to check whether the right
safety valve has been selected for the des-
ignated use.
Dependent on the system, specific thresh-
old values for the medium temperature and
the back pressure apply. The safety valve
spring must be configured accordingly. The
set pressure must be adjusted accordingly.
When working with dangerous or harm-
ful media, the respective regulations and
standards must be observed.
Dangerous media includes:
• toxic media,
• caustic media,
• irritating media,
• environmentally hazardous media,
• hot media,
• explosive media,
• flammable media.
Safety regulations and warnings must be
observed.
For additional information about this prod-
uct, contact the manufacturer.