LESER Spring-loaded safety valve Type 1525 series 459 steel/metal closed bonnet open lever adjustment range 2.91 - 4 barg inlet 3/4" BSPP outlet 1" BSPP
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Brand | LESER |
Series | 459 |
Type | 1525 |
Norm | ISO 4126-1 |
Model | Spring-loaded safety valve |
Construction type | Right-angled |
Housing material inlet side | Steel |
Material quality inlet side | 1.4104 |
Housing material outlet side | Steel |
Material quality outlet side | 1.0619 |
Nominal inner diameter inlet side | 3/4" (20) |
Connection inlet side | External thread (BSPP) |
Standard connection inlet side | ISO 228-1 |
Nominal inner diameter outlet side | 1" (25) |
Connection outlet side | Internal thread (BSPP) |
Standard connection outlet side | ISO 228-1 |
Adjustment range | from 2.91 to 4 bar |
Blow-off characteristic | High-lifting |
Valve bore | 13 mm |
Valve lifter | Open |
Gastight valve | No |
Spring cap, closed | Yes |
Material spring bonnet | Ductile cast iron |
Material disc | 1.4122 |
Seat material | 1.4104 |
Sealing | Metal |
Bellows seal | No |
Spring material | Spring steel |
Spindle material | 1.4021 |
Medium temperature | from -10 to 300 °C |