The 30l01y/r Self-operated Flow Control Valve
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| Name | The 30l01y/r Self-operated Flow Control Valve |
|---|---|
| City | China |
| Type | Industrial Machinery & Equipments |
| [email protected] | |
| Phone # | 86-21-52805955 |
| Fax # | 86-21-62808550 |
| Contact Person | zoe |
| Address | 609ROOM,2#Yinghua International Plaza, Guangfu Road,Putuo District ,Shanghai China |
| Description | Summary The 30L01Y 30L01R self-operated flow control valve is composed of the control valve provided with flow setting and actuator. The main features are as follows: 1.It has the pressure balancing function with high sensitivity. 2.Low noise, reliable performance ,free of maintenance 3.The standard modular design is adopted. 4.The flow is adjusted according to the standard figure by the throttle valve, which is convenient and fast. 5.Various combined controls can be carried out through the assemblies. Body DN 15、20、25、32、40、50、65、80、100、125、150、200、250mm PN Class150、300 Flange standard ANSI、JIS、DIN GB JB(special standards can be offered according to user requirements) Body material WCB、CF8、CF3、CF8M、CF3M Plug material Hard seal Stainless steel (304、316、316L) Soft seal Stainless steel embedded with rubber ring Pressure balancing Stainless steel bellows (DN15~125), balanced diaphragm (DN150~250) Actuator Effective area (cm2) 250 630 Differential pressure of throttle 0.02 0.05 Allowable maximum differential pressure between the upper and lower diaphragm chambers 0.4 0.15 Material galvanized steel sheet; diaphragm EPDM or FKM with fiber Control pipeline connection Copper pipe o r steel pipe Φ10X 1(mm) ferrule connect ion: R1/4" Performance Set value error ±8% Allowable leakage (under stipulated testing conditions) Hard seal 4×0.01% valve rated capacity Soft seal DN15~50 DN65-DN125 DN150~250 10 bubbles/ min 20 bubbles/min 40 bubbles/min Structural figure 1 Flow restrictor 2 Body 3 Seat 4 Valve shaft 5 Bonnet 6 Bellows 7 Diaphragm Cover 8 Diaphragm 9 Charging valve Allowable working temperature DN 15~125mm 150~250mm seal type Hard seal ≤150℃ ≤140℃ Two Cooling tank≤200℃ Two Cooling tank and extension ≤200℃ Soft seal ≤150℃ Note: The differential pressure of throttle in the flow valve includes two types such as 0.02MPa and 0.05MPa, which shall be selected according to the actual situations. The differential pressure before and after the valve shall be higher than that of the throttle. Rated flow coefficient, noise measuring coefficient, allowable differential pressure DN 15 20 25 32 40 50 65 80 100 125 150 200 250 Rated flow coefficient 4 6.3 8 16 20 32 50 80 125 160 280 320 400 Throttle pressure differential Flow range(m /h) 0.02MPa 0.1-2 0.2-3 0.2-4 0.4-7 0.6-11 0.8-16 3- 28 4- 40 6- 63 8- 80 12-125 15-150 18-180 0.05MPa 0.2-3 0.3-4.5 0.3-6 0.5-10 0.8-16 1.1-24 4 - 40 6-58 9- 90 12-120 18-180 22-220 25-250 Noise measuring 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 0.2 0.2 Allowable differential PN16 1.6 1.5 1.2 1 pressure (Mpa) PN40 2 Note: The differential pressure of throttle in the flow valve includes two types such as 0.02MPa and 0.05MPa, which shall be selected according to the actual situations. The differentia l pressure before and after the valve shall be higher than that of the throttle. Working principle After the controlled medium enters the valve, the before-valve pressure P1 is input into the lower diaphragm chamber through the control pipeline, and the pressure Ps after throttling by the throttle valve is input into the upper diaphragm mchamber. The difference between P1 and Ps △Ps=P1-Ps is called effective pressure. The difference between the thrust producedon the diaphragm by P1 and the thrust produced on the diaphragm by Ps determines relative positions of the plug and seat and determines the flow that passes through the valve. When the flow that passes through the valve increases, i.e. △Ps increases, P1 and Ps respectively acts on the lower diaphragm chamber and upper diaphragm chamber to make the plug move towards the seat, so that the flow area between the plug and seat is changed and Ps is increased . The thrustacted on the diaphragm by the increased Ps, the reacting force of the spring and the thrust acted on the diaphragm by P1reaches balance at the new position to realize the purpose of controlling f low, and vice versa. The flow of the controlled medium is determined through adjusting relative positions of the throttle valve and seat. Calibration chart: To set the flow more accurately and quickly, the following calibration charts are offered for you reference (please measure the flow with a flow meter if you need to set the flow more precisely or set the flow for valves with DN150-250). The calibration chart is only applicable to water, and serves as a reference for other media, whose flow shall be properly adjusted in the actual process.. I. Dimensions and weight of control valve DN (mm) 15 20 25 32 40 50 65 80 100 125 150 200 250 L (mm) 130 150 160 180 200 230 290 310 350 400 480 600 730 B (mm) 212 212 238 238 240 240 275 275 380 380 326 354 404 Weight(Kg) 6.2 6.7 9.7 13 14 17 29 33 60 70 80 140 220 B1(mm) — — — — — — — — — — 630 855 1205 Weigh(Kg) — — — — — — — — — — 140 210 300 II. Dimensions and weight of actuator Effective area(cm 2) 250 R (mm) 263 H (mm) 150 Weight(Kg) 9 |
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