Project Description
Shut-off , flap valve MAG-3 / MAG-3 BIO
- 2/2 kl.A
II 2G c IIB T4
• Fluid media
– MAG-3 gas fuels (natural gas, propane-butane)
– MAG-3 BIO gas fuels (natural gas, propane-butane, biogas)
• full bore
• very low flow resistance – comparable with ball valves
• opened only manually (with use of special key)
• closed with electrical impulse, coming from detection system or manually (with button)
• valve with explosion-proof design (ATEX)
• equipped with valve position sensor – indicator (option)
• adapted for external applications
• conforms to PN-EN161
• as an actuator (cutting off the gas supply) in low and medium pressure Gas Safety Systems installed in:
– municipal and industrial gas boilers
– public buildings
– medium pressure reduction and measuring stations etc.
– power generator / cogeneration compartments
– biogas plants (MAG-3 BIO)
• zone 1 or 2 hazardous areas with gases and flammable vapours assigned to explosive class II, temperature class T4
additionally MAG-3 BIO
• for protecting all types of gas installations and devices (eg burners, boilers, cogeneration systems, etc.) supplied with gas such as:
– biogas from wastewater treatment plants
– biogas of landfill origin
– biogas from installations for processing animal or plants waste
– coke oven gas
| Fluid media MAG-3 MAG-3 BIO |
gas fuels (methane, propane-butane) gas fuels (methane, propane-butane, biogas) |
| Pressure | see tab „Dimensions / Pressures” |
| Fluid media temperature | -30°C ÷ +60/50°C |
| Ambient temperature | -30°C ÷ +60/50°C |
| Closing electrical impulse | 6A/12V |
| Impulse duration | ti < 1s |
| Flow for ΔP = 1mbar ZBK-50k/ZBK-50 BIO ZBK-100k/ZBK-100k BIO |
Q ~ 100m³/h (methane) Q ~ 330m³/h (methane) |
| Opening | manual |
| Closing | electrical impulse or manually – with button |
| Closing time | < 1s |
| Operation type | intermittent |
| Degree of protection | IP44(for valve) |
| Valve body material | stop aluminium |
| Sealing material MAG-3 MAG-3 BIO |
Nitrile-butadiene rubber NBR VITON |
| Mounting position | arbitrary |
| Type | DN | K [mm] |
A [mm] |
A1 [mm] |
B [mm] |
E [mm] |
L [mm] |
P [mm] |
PMAX [bar] |
Ps [bar] |
M [kg] |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Flanged connection: | |||||||||||
| ZBK-50k* | 50 | 125 | 183 | ~204 | 78 | 165 | 230 | 85 | 5 | 6,5 | 5,3 |
| ZBK-100k* | 100 | 180 | 257 | ~257 | 103 | 270 | 325 | 160 | 5 | 6,5 | 14,8 |
*- also applicable to MAG-3 BIO (typ ZBK-50k BIO i ZBK-100k BIO)
- in both open and closed positions valves do not require power supply – they are energy efficient (electrical impulse with duration <1s is needed only to close the valve)
- insensitive to voltage decay supplying the system – its absence or temporary decay does not cause changes in the gas flow through the valve
- resistant to any interferences that in the closed state can cause accidental valve opening (only conscious actions of supervisors)
- very small maneuvering area required to operate and small force needed to open the valve
- simple, cheap, reliable and lightweight construction
- long lifespanVERSIONS:
- MAG-3 type ZBK-50k i ZBK-100k, standard version
- MAG-3 BIO type ZBK-50k BIO i ZBK-100k BIO, designed for landfill or wastewater treatment plants origin biogas
