1:Emergency shut off valve 2:ISO9001&CE 3:Explosion-proof 4: G"3/4 inside pipe thread & DN20 5:Medium: gas
emergency shut off valve
We are producing:(1): Gas monitoring system (monitors with capacity from 8~1024 channels)
(2): Gas detection system(combustible gas, VOC, toxic gas detectors available)
(3): Gas valves( dimention range from DN15~DN200 with frange or threaded connection)
(4): Other relevant fire-fighting equipment.
Overview (for Model No.ZH2000-DN20):Our ZH2000 DN15~DN20 Series Gas Valves are emergency shut-off devices for gas pipe .It can connect with gas leakage alarm system or fire-fighting as well as other intelligent alarm terminal module to achieve shutting –off gas in time manually or automatically at distance for safety. When strong and harmful vibration occurs, valves can automatically shut-off. Resetting valves need to be operated by manual, which is required by relevant security regulation.
Technical| Model No. | DN20 | Applicable for | natural gas, LPG, artificial coal gas and other non-corrosive gas |
| Sealing material | NBR /FKM rubber | Working temperature | -10°C~+60°C |
| Working pressure | 50kPa | Connection mode | G1/2", G3/4 inside pipe thread |
| Opening valve Mode | manual reset | Closing valve Mode | DC pulse drive/manual |
| Driving voltage | DC9~DC12V(pulse) | Driving current | <1.5A(pulse) |
| Closing valve time | less than 1s | Explosion- proof type | Casting-seal |
| Explosion -proof sign | ExmbIIT4 | External line length | 0.4m |
| Standard | Q/510117-008112-2009 | Valve body material | aluminium / Brass alloy (HPb59-1) |
DN 20 Gas emergency shut off valve for home use
