Self-pressure regulating valve technical features

Posted by uuuseff on November 19th, 2019

ZZY-type self-acting pressure regulating valve without external energy, the use of the media itself as the power of the media to be adjusted, the introduction of the actuator control spool position, change both ends of the pressure and flow, so that before the valve (or valve) pressure stability. With sensitive, good sealing, small pressure set point fluctuations, etc., are widely used in gas, liquid and vapor pressure regulator decompression regulator or automatic control. 【Features】 · Self-operated pressure regulating valve without external energy, can work in a non-electric gas-free place, both convenient and energy saving. Pressure range of small and cross each other, high precision. Pressure setting can be set continuously during operation. · After the valve pressure regulator, the valve pressure and valve pressure ratio of 10: 1 ~ 10: 8. Rubber diaphragm detection, the implementation of high precision detection, action sensitive. * Pressure balance mechanism, so that the control valve responsive and precise control. 【Main technical parameters and performance indicators】 Nominal diameter DN (mm) 20 25 32 40 50 65 300 Rated flow coefficient Kv 7 11 20 30 48 1100 1750 Rated stroke (mm) 8 10 14 20 25 40 50 60 70 Nominal pressure PN (MPa) 1.6, 4.0, 6.4 Pressure adjustment range (kPa) 15 to 50 40 to 80 60 to 100 80 to 140 120 to 180 160 to 220 200 to 260 240 to 300 280 ~ 350 330 ~ 400 380 ~ 450 430 ~ 500 480 ~ 560 540 ~ 620 600 ~ 700 680 ~ 800 780 ~ 900 880 ~ 1000 950 ~ 1500 1000 ~ 2500 Fast open regulation accuracy (%) ± 5 Operating temperature ℃) ≤ 350 Allowable leakage of hard seal (l / h) Single seat: ≤ 10 -4 Valve rated capacity (Class IV); double seat, sleeve ≤ 5X10 -3 Valve rated capacity (Class II) h) 0.15 0.30 0.45 0.60 0.90 1.7 4.0 6.75 11.10 16.0 Decompression ratio Maximum 10 Minimum 1.25

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