| |
|
SERIES SMU-7000
Flanged, spring loaded, direct acting, full nozzle safety relief valves(ASME Sect.VIII).
Media: gas, steam and liquid.
Size inlet: from 1” to 8”.
Size outlet: from 2” to 12”.
Ratings: up to ASME 2500.
Temperature range: from –267°C to 538°C.
Set pressure range: from 0,3 bar to 414 bar.
Standards: ASME Sect.VIII, API 526, EN ISO 4126-1
(special constructions upon request).
Overpressure: gas and steam 3% or 10%, liquid 10%.
Blowdown: gas and steam 5÷7%.
Materials: Carbon steel, alloy steel, hastelloy, monel and other materials upon request.
Options: bellows, flushing nozzle, lifting lever, test gag, finned bonnet, resilient or hardened seat.
|
|
|
SERIES SMFN-7000, SMF-7000 & SU-7000
Screwed and flanged, spring loaded, direct acting, full nozzle safety relief valves.
Media: gas, steam and liquid.
Size inlet: from 1/2” to 1”.
Size outlet: from 1” to 1 1/2”.
Ratings: up to API 6000 or ASME 2500.
Temperature range: from –200°C to 400 °C.
Set pressure range: from 0,8 bar to 400 bar (for gas), up to 1500 bar for liquid.
Standards: ASME Sect.VIII, API 526, EN ISO 4126-1
(special constructions upon request).
Overpressure: gas, steam and liquid 10%.
Blowdown: gas and steam 5÷7%.
Materials: Carbon steel, alloy steel, hastelloy, monel and other materials upon request.
Options: bellows, flushing nozzle, lifting lever, test gag, resilient or hardened seat.
|
 |
|
SERIES SMS-7100
Flanged, spring loaded, direct acting, full nozzle safety relief valves for steam service (ASME Sect.I).
Media: steam (suitable also for gas).
Orifices: from “D” to “T”.
Size inlet: from 1” to 8”.
Size outlet: from 1-1/2” to 12”.
Ratings: up to ASME 1500.
Temperature range: up to 540 °C.
Set pressure range: up to 153 bar.
Standards: ASME Sect.I, EN ISO 4126-1 (special constructions upon request).
Overpressure: 3% or 0,14 bar.
Blowdown: 4% or 0,28 bar.
Materials: Carbon steel, alloy steel, hastelloy, monel and other materials upon request.
Options: lifting lever, test gag, finned bonnet, hardened seat.
|
 |
|
SAFETY RELIEF VALVES WITH HEATING JACKET
Flanged, spring loaded, direct acting, full nozzle safety relief valves.
The valve series SMU-7000, SU-7000, SMFN-7000 and SMF-7000 are available with heating jacket in special execution, the body is made by machining a block of forged material.
Media: gas, steam and liquid.
Overpressure: gas, steam and liquid 10%.
Blowdown: gas and steam 5÷7%.
Materials: Carbon steel, alloy steel, hastelloy, monel and other materials upon request.
Options: bellows, flushing nozzle, lifting lever, test gag, resilient or hardened seat.
|
 |
|
CONTROLLED SAFETY RELIEF VALVES
These valves represent the capability of to develop special valves for customer needs.
ASSISTED SAFETY RELIEF VALVES (ASV)
This is a standard safety valve equipped with a pneumatic actuator that allows to open the valve with a pneumatic or electronic remote signal. It may be used to depressurize the vessel in case of fire or to check the proper work of the valve when the process medium tends to solidify. Overpressure can also be controlled and reduced to 2%.
The connection between the actuator and the valve stem is done in such a way that a failure of the assisting mechanism does not change the operational characteristics of the valve.
SUPPLEMENTARY LOADED SAFETY RELIEF VALVES (SLSV)
This is a standard safety valve equipped with a secondary spring and a double acting pneumatic piston controlled by a redundant system.
This valve may be used when the difference between set pressure and operating pressure is less than 10%; in this case the leakage through the seats is greatly reduced or eliminated. Blowdown can also be controlled and kept between 3 and 4%.
|
|
|
PILOT OPERATED SAFETY VALVE
SERIES SVP-72000
Flanged, pop and modulating action, full nozzle pilot operating safety valves (ASME Sect.VIII).
Media: gas, steam and liquid.
Orifices: from “D” to “T” ; intermediate orifices (K2,
P2, Q2, R2) and full bore orifices available.
Size inlet: from 1” to 8”.
Size outlet: from 2” to 12”.
Ratings: up to ASME 2500.
Temperature range: from –252°C to 288 °C.
Set pressure range: from 1 bar to 425 bar.
Standards: ASME Sect.VIII, EN ISO 4126-4 (special constructions upon request).
Back pressure: up to 80% (special constructions upon request).
Materials: Carbon steel, alloy steel, hastelloy, monel and other materials upon request.
Options: metal or soft seat, field test connection, back flow preventer, pilot supply filter, remote pressure sense connection, manual unloader, test gag, pilot lift lever.
|
 |
|
