20 gas pressure reducing valve, made by Feng Feng
4.3.3 indoor gas pipeline connections shall meet the following requirements:
1 Reading steel tubes with nominal sizes no larger than DN50 shall be threaded. When other connections must be used, corresponding measures shall be taken;
2 seamless or welded steel pipe shall be welded or flanged;
3 copper pipe shall be socket type brazed joint. Butt welding and soldering shall not be used;
The connection mode of 4.3.6 gas pipeline shall comply with the design documents. When the design document has no clear stipulation, the design pressure is greater than or equal to 10KPa and the pipeline layout in the basement, semi basement or on the confined space of the pipeline, in addition to low pressure pipe with thickened or with special equipment thread or flange connection, should be connected by welding.
Check quantity: 100% check.
Inspection method: visual inspection and consult design documents.
The horizontal distance 4.3.12 combustible gas detection alarm and gas appliance or valves shall comply with the following provisions:
1 when the gas density is lighter than air, the horizontal distance should be controlled in the range of 0.5 ~ 8.0m, the installation height should be within 0.3m from the roof, and shall not be installed just above and appliance;
2 when the relative density of gas is heavier than that of air, the horizontal distance should be controlled within the range of 0.5 ~ 4.0m, and the installation height should be within 0.3m of the ground.
Check proportion: 100% check.
Inspection methods: visual inspection and foot measurement.
4.3.13 indoor gas pipelines are strictly prohibited as grounding conductors or electrodes.
Check proportion: 100% check.
Inspection method: visual inspection.
Urban gas interior engineering construction and quality acceptance specification CJJ 94 - 2009 excerpt
Product information
Product Name: canteen, home pressure reducing valve / industrial gas pressure reducing valve / factory methane pressure reducing valve, /20 square gas water heater, pressure reducing valve / gas wall hanging furnace, pressure reducing valve, pressure stabilizing valve
The utility model relates to a direct acting voltage regulator, which adopts a toothed lever structure, and can be widely used for regulating and stabilizing various medium and low pressure non corrosive gases.
Weight: 2KG producer: Hengshui, Hebei Run Feng gas equipment company
technical parameter
Main technical parameters
Inlet pressure: P1:0.005 to 0.8MPa
The outlet pressure is P2:1 ~ 20KPa (adjustable)
Maximum flow: 25Nm3/h
Precision: Delta P2 = 10%
Path: internal thread DN20/25
Can choose whether to bring ultra-high pressure shut-off valve.
Applicable medium: biogas, biomass gas, straw gas, natural gas, coal gas, liquefied petroleum gas and other non corrosive gases.
Scope of application: canteen gas stove decompression, factory 20 party following gas water heater decompression and factory small flow boiler decompression.
The utility model can solve the problem of flameout of gas stove caused by sudden pressure of pipeline gas.
Contact: Tan Zheng, 180-0338-3735, plus WeChat, quote anytime, QQ:289424295