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SANZHOU PRODUCTS

V230Y pilot drive self-operated differential pressure control valve

V230Y pilot drive self-operated differential pressure control valve

V230Y pilot drive self-operated differential pressure control valve

Information

 

V230Y Pilot Drive Self-operated Differential Pressure control valve, is composed of control valve body, actuator, positioning spring ,stainless steel bellows, external pressure tap and all that. The valve doesn’t requires any auxiliary energy from external supply sources, by use of medium itself pressure as motive power, it can automatically control and stabilize the medium pressure.This valve has high regulating accuracy . It is mainly used for keep ing the pressure of protecting gas (such as Nitrogen ) on tank’s top to be constant ,in ordert to avoid the material in the tank contacting with air,avoid volatilizing and oxygenizing of material and keep the safe of the tank.It is especially suitable for the various gas seal protection system!
V230Y command operated self-operated micro-pressure control valve is characterized by power saving, effectively handle, convenient to operate and maintain etc. It is widely used in the oil and chemical etc industrials.
 
           Standard Specifications
    
Body
Type :cast globe valve,(as shown in figure 1)
Nominal Diameter:DN20,25,32,40,50,65,80,100
Nominal Pressure: B PN1.0、1.6MPa
           ANSI150
           JIS 10K
           DIN PN16
End ConnectionFlange HG20596-97M; ANSI B16.5 RF ;DIN2543/2544/2545RF;JIS B2201RF
Face to Face Dimension: according to GB/T12221-1989,EN558.1:1995,ISO5752-1982 basic series 1
Body Material: WCB,ZG0Cr18Ni9(CF8),ZG0Cr18Ni12Mo2Ti(CF8M)
Bonnet Type: STD type,-10~80℃ ;Medium temp type(with Every temperature tank ), ≤250℃;high temp type(with Every temperature tank and extensions),≤350℃Packing :V shape PTFE ,flexible graphite, o-rings
Seal gasket:Seal gasket:Metal winding gasket, metal graphite gaskets, zigzag gasket and flat gasket
Paint: Carbon steel shell surface required to paint, stainless steel or copper surface without paint .
Trim  
Plug type: cylinder plug
Flow characteristics: quickly opening
Plug material: 0Cr18Ni9(304),0Cr17Ni12Mo2(316)
Seat material: 0Cr18Ni9(304),0Cr17Ni12Mo2(316),304+F4,316+F4
Stem material: 0Cr17Ni4Cu4Nb(17-4PH),0Cr17Ni12Mo2(316)
Bellow material: 0Cr17Ni12Mo2(316),00Cr17Ni14Mo2(316L)
 
Actuator
Type :  multi-spring diaphragm type 
Pressure Regulating Range: please check table 1
Upper and Lower Case Material:A3、A4 With PTFE、0Cr18Ni9(304)
Diaphragm Rubber: NBR , EPDM , FPM and other oil-resistance rubbers
Spring material: 60Si2Mn
Work temperature:-20~80℃
Performance
Control Type: pressure relief type(B), pressure regulators type(K)
Rated CV:As shown in table 1
Seat leakage:Metal seat according to ANSI B16.104 ClassⅣ,less than10-4of Rated Cv ,PTFE seat according to ANSI B16.104 Class VI,less than10-7of Rated Cv
Pressure control accuracy ± 3%.
Working temperature:-10~350℃
Rated Travel: see table 1
Shape Size:As shown in figure 3 , table 2
Weight of product:As shown in table 2
 
Structure
 
 
 
 Figure1V230Y Pilot Drive Self-operated Differential Pressure control valve
阀体:body   阀芯:plug    执行器:actuator 节流阀:throttle valve 减压阀:pressure relief valve 指挥器阀芯:pilot plug   检测机构:testing organization
预设弹簧:preset spring 指挥器:monitor                                     
 
Working principle
V230Y command operated self-operated differencial pressure control valve as shown in figure 1.It guides the medium which is set on the tank top’s pressure tapping point to testing organization(7). The medium contacting on the testing component will produce an acting force which is balance to the preset pressure of spring. When the pressure in the tank fall to lower than Nitrogen supply equipment’s set pressure, the balance will be broken ,so the monitor’s plug opened, and the gas from front valve goes into actuator’s upper and lower case through pressure relief valve and throttle valve, at last it opens the plug and fill gas to the tank; when the tank’s inside pressure up to air supply equipment’s set pressure, preset spring make the monitor be closed. Due to the function of spring in the actuator, the plug closed and stopped to supply the air.
Table 1 technical parameters
DN(mm)
25
32
40
50
65
80
100
Seat diameter dn
5
6
7
8
10
12
15
20
25
32
40
50
65
80
100
Cv
0.23
0.37
0.58
0.94
2.1
3.3
5.1
8.1
12.9
35
37
56
88
140
220
Rate travel
8
10
14
20
25
Pressure regulating range KPa
0.5~5.5、5~10、9~14、13~19、18~24、23~28、
27~33、31~38、36~44、42~51、49~58、56~66
 
Examples of application
 
 
Figure2 Nitrogen seal assembly
呼吸阀:breather valve                  存储罐:                     出液阀:drain valve                       进液阀:liquid inlet valve                         压力表:pressure gauge                      微压阀:micro-pressure valve                      氮气入口:Nitrogen inlet                                               压力控制器:                          排大气: atmosphere bleeding                  单座切断阀:single seat cutting off valve
Shape size and weight
Table 2 shape size (mm) and weight (Kg)
DN(mm)
25
32
40
50
65
80
100
L
160
180
200
230
290
310
350
A
308
308
308
308
394
394
394
H2
415
415
415
115
415
415
415
H1
60
75
80
85
95
105
120
H
720
730
730
750
790
840
890
Weight
32
35
40
50
90
115
280
 
 
 
 
 
 

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SHANGHAI SANZHOU AUTOMATION DASH CO.,LTD
ADD:No.2651, Waiqingsong Road, Baihe Town Qingpu District, Shanghai, 201709, P.R.C.
TEL:86-21-59748861
FAX:86-21-59747999
Website:www.szvalves.com
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