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The 30L01Y/R self-operated flow control valve

Inquiry
  Post Date: Oct 09,2014
  Expiry Date: Nov 08,2014
  Detailed Description: Cas No. :The 30L01Y/R Quantity: 9001、ISO4001、CE
Specs:1pc
Price:50-200 USD Metric Tons
Payment Method: T/T
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

  CAS Registry Number:

The 30L01Y/R


  Company: Zhejiang REOWO Automatic Instrument Co.     [ China ]        
  Contact: Johnny
  Tel: 86-021-52805855
  Fax:
  Email: salec@reowo.com
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