TYPE 437 - VAN AN TOÀN LESER DÒNG COMPACT PERFORMANCE (ĐỨC)

TYPE 437 - VAN AN TOÀN LESER DÒNG COMPACT PERFORMANCE (ĐỨC)

Safety valves with compact dimensions and high connection variety
Standard delivery time for all options 14 days. Only a few more complex options have longer delivery times.

Flanged and threaded valves with a wide range of options
Small installation space with simultaneous horizontal installation option
Bellows version available
Set pressures up to 850 barg / 12325 psig
LESER Nanotightness: Exceeds the tightness requirements of API 527 by 50%

Industries:
Chemical 
Oil & Gas 
Petrochemical 
Energy 
Technical Gases 
LNG and LPG 
Pharmaceutical 
Food and Beverage 
Ship Building 
General industries 


Technical data Compact Perfomance

Nominal Diameter at Inlet
DN 15 - DN 40 | 3/8" - 1 1/2"
Actual Orifice Diameter d₀
6 mm - 17.5 mm | 0.236 in - 0.689 in
Actual Orifice Area A₀
28.3 mm² - 241 mm² | 0.044 in² - 0.374 in²
Pressure
0.1 bar - 850 bar | 1.5 psig - 12.328 psig
Temperature (in accordance with DIN EN)
-270°C to +450°C | -454°F to +842°F
Body Material
1.4104, 1.4404, 0.7043, 1.0619, 1.4408 | SA 479 430, SA 479 316L, Ductile Gr. 60-40-18, SA 216 WCB, SA 351 CF8M
Valve Connection
Threads iaw DIN ISO 228-1, DIN ISO 7-1 / BS 21, ANSI / ASME B1.20.1. / Flange iaw DIN EN 1092-1 / DIN 2501., ASME B16.5
Bellows Material (optional)
Stainless steel, Elastomer (EPDM), Hastelloy, Inconel
Load Type
Spring-loaded

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