DIN flange direct operated pressure reducing valve

【】Direct-operated pressure reducing valve. The simplest pressure reducing valve, the direct-operated pressure reducing valve, has a flat diaphragm or bellows. Because it is a self-contained layout, there is no need for external sensing wires downstream of the device. It is the smallest and most economical of all pressure reducing valves, and is designed for medium and low flow rates. The accuracy of direct-operated pressure reducing valves is generally +/- the downstream set point. 【】Pilot-operated piston pressure reducing valve. This type of pressure reducing valve integrates two valves - pilot valve and main valve - into one. The design of the pilot valve is similar to that of a direct-operated pressure reducing valve. The exhaust pressure from the pilot valve acts on the piston, causing the piston to open the main valve. If the main valve is large and cannot be opened directly, this design will use the inlet pressure to open the main valve. Therefore, this type of pressure reducing valve has higher capacity and accuracy (+/-) than the direct effect pressure reducing valve under the same pipeline size. Like the direct-operated pressure reducing valve, the pilot-operated piston pressure reducing valve senses pressure internally and does not require external sensing lines.
【3】Pilot diaphragm pressure reducing valve. In this type of pressure reducing valve, a double diaphragm replaces the piston in a pilot diaphragm pressure reducing valve. This increased diaphragm area can open a larger main valve, and under the same pipe size, its capacity is larger than that of the pilot-operated piston pressure reducing valve. In addition, the diaphragm is more sensitive to pressure changes and has an accuracy of +/-. The greater accuracy is due to the positioning of the downstream sensing line (outside of the valve) where there is less gas or liquid turbulence. This pressure reducing valve is very sensitive.
【Ⅰ】 Model: ./, .BR/,
【Ⅱ】 Size:
【Ⅲ】 Pressure:
【Ⅳ】 Material: cast steel, stainless steel
【Ⅴ】Connection: flange, flange, thread
【Ⅵ】Application: Steam, air, oxygen, water and other fluid systems