These Regulators have wider outlet pressure ranges. The outlet pressure can be easily adjustable by rotating the adjustable screw. when we rotate anticlockwise the outlet pressure is reduced & by rotating it in clock wise direction the our PRESSURE REDUING VALVE / REGULATOR
A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Regulators are used to allow high-pressure fluid supply lines or tanks to be reduced to safe and/or usable pressures for various applications ie Oxy-fuel welding and cutting, propane and LP Gas applications, Oil and Gas Industry, Mining Industry. Gas pressure regulators are used to regulate the gas pressure and are not appropriate for measuring flow rates. A pressure regulator's primary function is to match the flow of gas through the regulator to the demand for gas placed upon the system. If the load flow decreases, then the regulator flow must decrease also. If the load flow increases, then the regulator flow must increase in order to keep the controlled pressure from decreasing due to a shortage of gas in the pressure system. Thes regulators are available in Two stages first called First stage Reulator & than second stage Regulator. These regulators are available in two types the one is adjustable type & another is Preset type.
FIRST STAGE REGULATOR
The first stage of the regulator is mounted to the cylinder /Tank Presure by a siutable means. It reduces cylinder pressure to a middle or intermediate pressure, usually about 1 bar to 10 bars (15 psig to 150 psi) higher than the ambient pressure. these regulators are balanced type by Mean of diaphragm & spring mechanism. A balanced regulator first stage automatically keeps a constant pressure difference between the interstage pressure and the ambient pressure even as the tank pressure drops with consumption. The balanced regulator design allows the first stage orifice to be as large as needed without incurring performance degradation as a result of changing tank / cylinder pressure.
SECOND STAGE REGULATOR
Second stage regulators are not used for decreasing medium pressure and it must be installed downstream of a first stage regulator for safe and proper operation. Any regulator seen installed next to a building is a second stage regulator. Second stage regulators work with propane/ LPG/ Gases at a pressure supplied by the first stage regulator (inlet pressure) and further decrease that to a pressure that can be used by appliances (outlet pressure). Keep in mind that second stage regulators are not designed to work with varying tank pressures. Second stage regulators are only designed to operate in combination with first stage regulators. One cannot work without the other.
