Gas control station in the cabinet

1 Purpose of article 1.1 Gas control station in the cabinet (hereinafter referred to as GRPP) designed to measure the volume (under operating conditions) of smoothly changing flows of non-aggressive gases (other than oxygen) for commercial accounting and reduction of natural hydrocarbon gas (methane) from high or medium pressure to working, automatic maintenance of output pressure at a given level regardless of changes in flow rate and input pressure and automatic shutdown of gas supply at emergency increase and decrease of output pressure above permissible specified values. 1.2 Operating conditions of GRPP correspond to climatic design of UHL1 GOST 15150-69 with ambient temperature from - 45S to 60S. 1.3 GRPP during operation does not have a negative impact on the environment. 2 Technical characteristics The main parameters and characteristics of the GRPP shall correspond to the data specified in Table 1. The table 1 Name of Key Parameters and Characteristics Size of the Parameter 1 2 1 Adjustable Environment Natural gas in accordance with GOST 5542-87 2 Temperature of the measured environment, OS from-20o up to +50o 3 Gas purification from mechanical impurity the Filter gas FG-50/32-01 4 Maximum pressure on an entrance, MPa (kgf/cm2) 1,2 (12,0) 5 Setting of output pressure of 1st branch of reduction line, MPa (kgf/cm2) 0.270 - 0.300 (2.7 -3.0) 6 Adjustment of output pressure of the 2nd branch of reduction line, MPa (kgf/cm2) 0,270,-,0,300 (2.7 -3.0) 7 Non-uniformity of control,% ± 10 8 Pressure of actuation of safety relief valve of reduction line branch, MPa 0,09-0,360