Products advantages

n  Safety valves according to API 526 with standardized capacities and dimensions

n  Diverse selection of high-alloy materials available as standard

n  Longer lifetime due to hardened discs, partly stellited seats and integrated shielding of the optional bellows。

n  Single trim: Identical internal parts for S/G/L for cost-effective maintenance。

n  LESER Nanotightness: Exceeds the tightness requirements of API 527 by 50%

n  Design fully in accordance with API 526 for easy interchangeability

n  Special B3 design for high back pressure applications and material requirements far beyond API Standard.

n  One design and spring (single trim) for steam, gas and liquid applications reduces the number of spare parts and ensures low cost maintenance management.

n  Self-draining body design, avoids residues and reduces corrosion

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

Set Pressure

0.12 bar - 413.7 bar | 2 psig - 6,000 psig

Temperature

-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

Approvals

Industries