SU / SUL-7000 is a spring loaded safety relief valves designed to guarantees reliable and high quality overpressure protection for air, gas, steam, vapor, liquid and two phase applications.

SU / SUL-7000 are made with an integral flanged casted body, the flanges are never screwed nor welded to the body. They are the ideal choice for all the critical applications where the high quality level together with the compact size are required.

A wide range of material selection is available to suit the specific process conditions specified by the customer.

SU / SUL-7000 spring loaded safety valves offer simple and reliable design that guarantees optimum maintenance life cycle costs.

Main features
Flanged, spring loaded, direct acting, full nozzle safety relief valves
Media: gas, steam and liquid.
Orifices: from “B” to “F”.
Set pressure range: from 0.8 bar to 400 bar (for gas), up to 1500 bar for liquid.
Temperature range: from –200 °C to 400 °C.
Overpressure: gas, steam and liquid 10%.
Blowdown: gas and steam 5 to 7%.
Materials: carbon steel, alloy steel, hastelloy, monel and other materials upon request.
Options: bellows, nozzle, lifting lever, test gag, resilient or hardened seat.

Sizes / Pressure Classes
Size inlet & outlet: from NPS 1/2 to NPS 1 & from NPS 1 to NPS 1 1/2.
Rating: up to API 6000 or ASME 2500.

Design Codes & Product Standards
EN ISO 4126-1, EN 764-7, EN 12516, EN 1092, API 520, API 521, API 527, ASME B16.34, ASME B16.5, ASME Sect.VIII
GOST (Russia), AQSIQ (China), SVDB (Switzerland), Stoomwezen (Holland) CE según PED (Pressure Equipment Directive)

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