Self-pressure, differential pressure control valve main technical parameters

The valve is mainly used in process control pressure and differential pressure regulation can be used up to 300 ℃ non-corrosive liquids, gases and steam and other media, self-flow, Temperature combination valve works according to the priority action principle, can not control two parameters at the same time. Self-pressure, differential pressure combination control valve main technical parameters Model: V230D01D03 (hard seal) V231D01D03 (soft seal) Self-pressure, differential pressure combination valve control valve main technical parameters Nominal diameter DN 15 20 25 32 40 50 65 150 Rated flow coefficient Kvs 4 6.3 8 16 20 32 50 280 Noise measurement coefficient Z value 0.6 0.6 0.6 0.55 0.55 0.5 0.5 0.45 0.4 0.35 0.3 Nominal pressure (MPa) 1.6; 4.0 Maximum working temperature (℃) Liquid ≤140 ; Gas ≤80 hard seal with isolation tank ≤200 with isolation tank extension pieces ≤300 with isolation tank and heat sink ≤300 pressure balance components Bellows Rolling diaphragm Flange standard ANSI JIS DIN GB JB (special can be provided by the user) Valve Material cast iron; cast steel; cast stainless steel spool material stainless steel, soft seal stainless steel inlaid rubber ring maximum working pressure nominal pressure (note △ Pmx and working pressure and working temperature relationship) Self-pressure, differential pressure valve actuator Technical parameters Effective area (cm2) 32 ※ 80 ※ 250 630 Pressure setting range (MPa) 0.8 ~ 1.6 0.1 ~ 0.6 0.015 ~ 0.15 0.005 0.035 0.3 ~ 1.2 0.05 ~ 0.3 0.01 ~ 0.07 Max. Pressure difference between upper and lower membrane chambers allowed (MPa) 3.0 0.25 0.4 0.15 Material Membrane cover: Galvanized steel plate; Diaphragm: EPDM or FKM clamp Fiber control line, connector Brass or steel pipe 10 × 1; ferrule fitting R1 / 4 "Note: ※ DN150 can not meet the set value of self-pressure, differential pressure valve Specifications Control accuracy ± 8% Allowable leakage (under the specified test conditions) Hard seal 4 × 10-4 Rated capacity of the valve soft seal DN15 ~ 50 DN65 ~ 125 DN150 10 Bubbles / min 20 Bubbles / min 40 Bubbles / min Self-pressure, differential pressure Differential pressure valve allows the nominal diameter DN 15 20 25 32 40 50 65 150 The maximum allowable pressure difference △ P (MPa) PN16 1.6 1.5 1.2 PN40 2.0 (Editor: Yunhai QQ:) Recommended reading: Acting purchasing hydraulic control valve works and role

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