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- Connection RVS 18 mm, DN 20 PS 16 bar- Surface-mounted- Consisting of: Insulating piece, main shut-off valve, test connection, hot-dip galvanised protective box (H x W x D: 328 x 210 x 125 mm)- Scope of delivery:Cover, fixing material- For all gases in accordance with DVGW worksheet G 260- Approvals:Individual valves DIN-DVGW o. DVGW or EU type examination certificateSafety(safety valve setting values for tanks usually 15.6 bar)Gas meter for propane systems:The supplier supplies the propane gas in the liquid phase and bills in kg for cylinders or in litres for tank systems. However, a gas meter records the gas phase and displays m3. In the case of several consumptionunits with one storage tank, all units must be equipped with one meter due to legal requirements, so that billing is based on the ratio of m3 consumed.For control purposes or in special cases, this ratio can be determined as follows (values depend on temperature and pressure):Density of the gas phase in kg/m3 : density of the liquid phase kg/l Example: 1.97 kg/m3 : 0.51 kg/l Result: 3.86 l/m3
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