Proportional Electric Motorized Ball Valve
Product Description
V-notch electric control valve is a electric actuator device of electric-unit combination instrument with the advantages such as small size, rigid, high precision, sensitive action, which adopts the direct feedback and indicator when the angle changed to realize the proportional regulating of pressure, flow, temperature and liquid level in receipt of the on-off, 4-20mA or 0-5V control signal.
1.Technical parameters
| Valve size DN(mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
| CV flow coefficient at a fully open (for reference) |
"O" shape |
24 |
44 |
84 |
122 |
198 |
320 |
443 |
595 |
1096 |
1692 |
2602 |
4212 |
| Rectangle |
8.7 |
13.4 |
20 |
32.6 |
44.3 |
70 |
114 |
134 |
186 |
270 |
462 |
688 |
| V-notch 30° |
7.5 |
11 |
17 |
28 |
38 |
60 |
98 |
116 |
155 |
233 |
397 |
595 |
| Flow characteristics |
J rectangle: linearity, "V" shape(logarithm)EQ%, "O" shape: Quick open |
| Adjustable rate |
50:1 100:1 300:1 |
| Valve size |
DN15-DN200(Please contact us for the detailed data of the larger diameter valve) |
| Body rating |
PN1.6~6.4MPa |
| End connection |
Flange/Thread/butt welding |
| Action time |
15S/30S(0-90°) |
| Power supply |
AC220V /AC380V /DC24V |
| Input signal |
4~20mA /0~5V |
| Output signal |
4~20mA /0~5V |
| Temp. |
≤350ºC |
| Ambient temp. |
-30~60ºC |
| flow coefficient(CV) |
Please download the data on our website for reference.(Custom flow coefficient depends on the customer's requirement.) |
| Medium |
Food, lubrication, fibrous fluid, water, oil, gas |
| Dead zone |
0.5% |
| Repeatability error |
0.5% |
| Body material |
Casting steel(ZG230-450),Stainless steel(ZG1Cr18Ni9Ti,316,316L) |
| Ball material |
Stainless steel(ZG1Cr18Ni9Ti,316,316L,A105)etc. |
| Stem material |
Stainless steel(ZG1Cr18Ni9Ti,316,316L) |
| Packing material |
PTFE, Grafoil |
| Seal type |
PTFE/Metal |
| Leakage |
degree |
| Seat material |
PTFE |
Metal |
| Operating Temp. |
N: -40ºC-180ºC |
M: -40ºC-350ºC |
| Manufacturing standard |
GB/T 122387-89 |
| Flange standard |
GB9113-2000,GB17241.6-1998 |
| Structure and length standard |
GB12221-89 |
| Inspection standard |
GB/T 13927-92 |
2.Installation Diagram
(DN)
|
L |
D |
K |
D1 |
n-Φd |
b |
f |
H1 |
H2 |
W1 |
W2 |
| 15 |
130 |
95 |
65 |
46 |
4-Φ14 |
14 |
2 |
250 |
50 |
196 |
145 |
| 20 |
140 |
105 |
75 |
56 |
4-Φ14 |
16 |
2 |
255 |
55 |
196 |
145 |
| 25 |
150 |
115 |
85 |
65 |
4-Φ14 |
16 |
2 |
260 |
60 |
196 |
145 |
| 32 |
165 |
135 |
100 |
76 |
4-Φ18 |
18 |
3 |
270 |
70 |
196 |
145 |
| 40 |
180 |
145 |
110 |
84 |
4-Φ18 |
18 |
3 |
275 |
75 |
196 |
145 |
| 50 |
200 |
160 |
125 |
99 |
4-Φ18 |
20 |
3 |
285 |
85 |
196 |
145 |
| 65 |
220 |
180 |
145 |
118 |
4-Φ18 |
20 |
3 |
350 |
95 |
255 |
184 |
| 80 |
250 |
195 |
160 |
132 |
8-Φ18 |
20 |
3 |
360 |
100 |
255 |
184 |
| 100 |
280 |
215 |
180 |
156 |
8-Φ18 |
22 |
3 |
370 |
110 |
255 |
184 |
| 125 |
320 |
245 |
210 |
184 |
8-Φ18 |
22 |
3 |
380 |
125 |
255 |
184 |
| 150 |
360 |
280 |
240 |
211 |
8-Φ22 |
24 |
3 |
390 |
140 |
255 |
184 |
| 200 |
400 |
335 |
295 |
266 |
12-Φ22 |
24 |
3 |
420 |
170 |
255 |
184 |
3.Control Diagram
| Model |
Circuit |
Model |
Circuit |
| S |
ON/OFF,no output signal |
CPT |
ON/OFF,output 4~20mA signal |
| MS |
ON/OFF,output passive contact signal |
PCU |
Regulation,output 4~20mA signal |
| PIU |
ON/OFF,output 0~1000Ω signal |
G |
ON/OFF,output passive contact signal |
| SP |
ON/OFF,middle position control |
H |
ON/OFF,output passive contact signa |
Packing&Shipping
1.Packing: inner with bubble wrap,outer with cardboard box and wooden case.
2.Transportation:by sea,by air,by train.
Our Services
1.Professional consultation
2.24 hours response after sale.
3.One year warranty.
4.Safe packing for shipment.
5.Welcome sample order.
Company Introduction
Wuhan Grat Control Valve is a professional valve manufacturer established in 2005.It is specialized in researching and developing various automatic valves for industrial automation and on-site implimentation products.
In 10 year development,Grat has obtained 9 patents like small flow control valve and potentiometer position device,and do business with more than 1000 companies all over the world.Some of them are world famous enterprises.
According to ISO9001:2008 quality management system,Grat strictly controls the product quality and the whole production process.In 2015,Grat got CE certificates and passed successfully EMC tests and CNAS 100000 times lifetime tests.
With the ERP and CRM systems applied in management,they enhance the resource and information level and improve the ability of customer relationship.High quality and good service are our advantages to win the market.
Certificates & Test reports
Application
Audited Supplier 
V-notch electric control valve is a electric actuator device of electric-unit combination instrument with the advantages such as small size, rigid, high precision, sensitive action, which adopts the direct feedback and indicator when the angle changed to realize the proportional regulating of pressure, flow, temperature and liquid level in receipt of the on-off, 4-20mA or 0-5V control signal.
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