The KromSchroder (Huoke De) VGBF gas pressure reducing valve 

 Origin: Germany 
 Product Description 
 Gas pressure reducing valve VGBF 
 For a variety of gas medium 
 Applicable to bio-methane 
 Inlet pressure compensation design, to improve regulation accuracy 
 Optimal size design allows higher gas flow through 
 Need to install the pipe diameter DN 15-150 does not require installation breathing pipeline (DN200 and DN250) 
 After the EC test and certification 
 Technical parameters 
 Materials Body: Aluminum 
 Diaphragm: NBR 
 Seat: aluminum 
 Stem: aluminum 
 Valve plate: NBR 
 Flange connection: PN16 in line with ISO7005 standards 
 Threaded connection: Rp meet the ISO7-1 
 Type of gas Natural gas, city gas, LPG (gas) and bio-methane. 
 Not be used for the air medium 
 Maximum inlet pressure 1bar or 4bar 
 Outlet pressure range DN 15 - 100 :5-350mbar 
 DN150 :5-160mbar 
 DN200-250 :10-105mbar 
 Different outlet pressure range can choose different spring. Factory set value of 20mbar 
 External Pressure pipe DN15-DN25: Rp1 / 4 
 The DN40-250: Rp3 / 8 
 Stress test hole DN 15-DN25: import cavity have an Rp1 / 4 threaded connection 
 The DN40-250: import cavity and export chamber of each one, Rp1 / 4 threaded connection 
 Medium temperature range -15 ° C ... +60 ° C. 
 The installation and location of this valve can be installed in horizontal pipelines and vertical pipeline. Does not allow installation stress. The installation should be at least 20mm distance to the surrounding buildings. 
 EN746-2 installation requirements according to the requirements of EN746-2, in order to prevent pipeline overpressure in the gas pressure reducing valve upstream and downstream, respectively, to install the super-pressure and automatic shut-off valve SAV and safety relief valve SBV. However, if the pressure reducing valve downstream equipment pressure rating higher than the actual gas pressure in the pressure reducing valve before the pipeline, then the two valves can be omitted. 
 Model table 
 Model caliber entrance pressure bar Weight kg 
 VGBF15R Rp1 / 2 1 0.9 
 VGBF25R Rp1 1 or 4 1.9 
 VGBF40R Rp1-1/2 1 or 4 2.9 
 VGBF40F DN40 1 or 4 4.5 
 VGBF50F DN50 1 or 4 6.5 
 VGBF80F DN80 1 or 4 15.1 
 VGBF100F DN100 or 4 23.9 
 VGBF150F DN150 1 48 
 VGBF200F DN200 1 103 
 VGBF250F DN250 1 122