Shanghai Bao Yi Electrical and Mechanical Equipment Co., Ltd. professional agent of marine, land and boiler burners and accessories: 
 Sales Hotline: 13801874668 text, 021 -61,241,138 (39), Fax 021 -61241137, E-mail: by@ranshaoji.com (895941109@qq.com) QQ: 895 941 109, Website: www.ranshaoqi.com.cn 
 Minhang District, Shanghai Xinsong Road 958, Lane Victoria Park Road, Room 1402, on the 18th 
 Product description: 
 The gas pressure reducing valve, the GBF used to control the gas and air inlet pressure to meet the normal working of the burner to complete the heating purpose. 
 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 
 Safety diaphragm eliminates the need for a purge line layout 
 After the EC test and certification 
 Spring-loaded pressure relief valve, inlet pressure compensation and zero pressure cut off the design. The springs regulatory role in the case of the gas flow fluctuations, but also can maintain the pressure relief valve outlet pressure constant. The inlet pressure compensation in the case of inlet pressure fluctuations to maintain a high control accuracy. Zero pressure cut off to prevent increased pressure in the gas flow out of date valve. Technical parameters 
 Materials Body: aluminum piece: NBR seat: Aluminium Stem: aluminum valve plate: D NBR 
 Flange connection: PN16 in line with ISO7005 standards 
 Pressure taps were connected with the inlet and outlet of the valve threaded connection Rp1 / 8 
 Type of gas Natural gas, city gas, LPG (gas) and bio-methane. 
 Can be specially customized for the air medium 
 Maximum inlet pressure of 200 mbar 
 Outlet pressure range GBF40-50 :5-105mbar GBF65-150 :5-160mbar 
 If you need a higher outlet pressure can be special ordered 
 Different outlet pressure range can choose different spring. Factory set value of 20mbar 
 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 DN entrance pressure mbar Weight kg 
 GBF40F02 DN40 200 4.6 
 GBF50F02 DN50 200 5.6 
 GBF65F02 DN65 200 9.8 
 GBF80F02 DN80 200 14.5 
 GBF100F02 DN100 200 24 
 GBF125F02 DN125 200 37 
 GBF150F02 DN150 200 48