LESER - Compact Performance Safety Valve
LESER - Compact Performance Safety Valve
Model: 437 / 438 / 439 / 459 / 462 / 462 HDD (Heavy Duty Design)
Body Material: WCB / F316L
End Connection: Screwed End / SORF Flanged End
NOTE : For different valve specifications, please click 'INQUIRY ME' button located below.
Model: 437 / 438 / 439 / 459 / 462 / 462 HDD (Heavy Duty Design)
Body Material: WCB / F316L
End Connection: Screwed End / SORF Flanged End
NOTE : For different valve specifications, please click 'INQUIRY ME' button located below.
LESER Compact Performance Safety Valves • Are designed to meet all industrial applications up to F orifice • Open rapidly with an overpressure of max. 5 % (Series 459) resp. 10 % (Series 437) to the full design lift • Have a maximum blowdown of minus 10 % for steam/gas service and minus 20 % for liquid service • Are developed in a close cooperation with plant engineers and service specialists • Serve for protection of processes and equipment • Are approved by all important approval organisations worldwide which ensures the worldwide applicability.
ADVANTAGES
- Compact design with high capacity relative to valve size
- Large selection of possible connections and seals for different operating conditions
- Quick delivery (2 - 4 weeks from the factory or next day from local warehouse)
- Space-saving horizontal installation possible
- Single Trim (identical internal parts for steam/gas/liquids) allows economical maintenance
- Longer lifespan of optional bellows through integrated shielding
TECHNICAL SPECIFICATIONS
Nominal Diameter at Inlet | DN 15 - DN 40 | 3/8" - 1 1/2" |
Orifice | D - F |
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 (iaw DIN EN) | -270°C to +450°C | -454°F to +842°F |
Material Outlet | 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 |
Load Type | Spring loaded |
APPROVALS
INDUSTRIES
- Chemical Industry
- Petrochemical Industry
- Technical Gases
- Oil and Gas Industry
- Power
- Food and Beverage Industry
- Pharmaceutical Industry