... 5 The description in details TheMainTechnicalParameterNominal Pressure(Mpa)2.5,4.0,6.3Nominal Diameter(mm) ... comply with the relative standard and rules 2 Our products 2.1 Kinds of regulators (Gas pipeline network ... etc. There must be a kind suits you ) 2.2 Regulators used indoor, buildings, medium and low pressure ... cluster Zone,Leshan ,Sichuan,China RFJ41F(Y)-50/2.5 Blowdown valve