API
Technical specifications
| Nominal Diameter at Inlet | DN 25 - DN 200 | 1" - 8" |
| Actual Orifice Diameter d₀ | 14 mm - 161.5 mm | 0.551 in - 6.36 in |
| Actual Orifice Area A₀ | 154 mm² - 20,485 mm² | 0.239 in² - 31.75 in² |
| Pressure | 0.12 bar - 413.7 bar | 2 psig - 6,000 psig |
| Temperature (in accordance with DIN EN) | -268 °C bis 538 °C | -450 °F bis 1,000 °F |
| Body Material | 1.0619, 1.4408, 1.7357 | SA 216 WCB, SA 351 CF8M, SA 217 WC6, SA 352 LCB, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy) |
| Valve Connection | Flange in accordance with ASME B 16.5 or DIN EN 1092 |
| Bellows Material (optional) | INCONEL 625 |
| Load Type | Spring-loaded |
Technical documentation
Benefits
- Compliance with API 526
- Diverse selection of high-alloy materials available as standard
- Longer lifetime due to hardened discs, partly stellited seats and integrated shielding of the optional bellows
- Single trim: Identical internal parts for S/G/L for cost-effective maintenance
- LESER Nanotightness: Exceeds the tightness requirements of API 527 by 50%
Applications
- Refineries
- Chemical industry
- Petrochemical industry
- Oil and gas – Onshore and Offshore
- Vessels and piping systems
- Blow-down systems
- Storage tank farms
LESER – API safety valves offer ultimate protection against overpressure in all applications for steam, gases and liquids.
LESER´s API Series safety valves present the simple safe solution for heavy duty applications, such as crude oil extraction, transportation and processing in
Engineering services
Free engineering services:
Support for the calculation, selection and configuration of LESER safety valves
- Support for the selection of spare parts for installed LESER valves
- Assistance in the selection of springs and parts when changing the set pressure of the LESER safety valve
- Assistance in restoring certificates and passports for LESER safety valves
- Assistance in finding additional options for LESER relief valves
- Provision of technical documentation for the operation and maintenance of safety valves.
- Training of the Customer's personnel on the operation and repair of LESER safety valves
Logistic services:
- Standard delivery "to the door", as well as the possibility of shipment of goods directly from the Factory on the terms of FCA Incoterms 2020
- Support in customs clearance of goods shipped on FCA terms, including the provision of certificates of conformity, as well as letters on the absence of the need for mandatory certification for certain groups of goods