Classification£º¡¡Electric control valve
Product Name£º¡¡GRAT Electronic Control valve
Product Description£º
GRAT Electronic Control valve with the advanced technology never need be configured with the servo amplifier, whose operation can be controlled by inputting control signal and single phase power, and which fully satisfies the requirements to regulate technical parameters of pressure, flow, temperature, the level of liquid.
¡ïLong service life
More than 50,000 operation life without fault, keep your system operating safely and reliably.
¡ïThe patent positioning technology
PPD positioning technology completely solves the problem of poor positioning accuracy and a major application difficult of long time reliable operation.
¡ïMiniature design
Light weight: The overall structure of valve body makes the ultra short face-to-face dimension, and greatly reduced the overall weight, which is about 50% weight of the same type ball valve
Small volume: The valve is easy to install in any direction of the pipeline, which is suitable for various complex pipeline and working conditions.
¡ïGood seal performance
The valve owns the double sphere sealing to enhance sealing strength and effectively control the leakage to zero leakage. The sealing level is grade VI.
¡ïThe valve owns a self-cleaning function to effectively guarantee the piping circulating.
The scissors opening between the valve seat and the trim can easily cut off all kinds of impurities in the pipeline to effectively guarantee the pipeline circulating.
¡ïHigh modulation precision
The valve has high modulation precision, large rangeability ratio (Maximum 300:1), excellent modulation performance to make it widely applied in various industrial fields for high precision adjustment.
¡ïThe new technology for Direct Debugging Switch(DDS) in electric actuators.
Easy to use! Design by GRAT in China.
It completely solved the problem of complex debugging and make the technology simpler.
The debugging can be simplified from 5 steps to 1 step.
The debugging for electrical and mechanical position can be easy achieved through rotating the knob on the top of the dial after electric actuators and valves are assembled together.
Valve size£ºDN15-DN200£¨Please contact us for the detailed data of the larger size valve£©
Body ratings£ºPN1.6MPa
Body connections£º Flange
Seat type£ºPTFE soft seal
Body material£ºSUS304 SUS316 WCB
Plug material£ºSUS304 SUS316 WCB
Action time£º15S¡¢30S£¨optional£©£¨0-90°£©
Power supply£ºAC220V AC380V DC24V
Control signal£º4¡«20mA 0¡«5V
Output signal£º4¡«20mA 0¡«5V
Operating pressure£ºPN1.6Mpa PN2.5Mpa PN6.4Mpa
Medium Temp.£º≤220¡æ
Ambient Temp.£º≤50¡æ
Flow coefficient£¨CV£©£º Please download the data on our website for reference¡£(Custom flow coefficient depends on the customer’s requirement.) Applicable medium£º Food, lubrication, fibrous liquid, water, oil, gas.
Dear zone£º0.5%
Repeatability error£º0.5%
DN |
L |
D |
K |
D1 |
N-Md |
B |
I |
H1 |
H2 |
W1 |
W2 |
Weight Kg |
|
mm |
inch |
||||||||||||
15 |
1/2″ |
35 |
95 |
65 |
46 |
4-φM12 |
9 |
2 |
234 |
196 |
145 |
196 |
5.6 |
20 |
3/4″ |
38 |
100 |
75 |
56 |
4-φM12 |
12 |
2 |
242 |
196 |
145 |
196 |
6 |
25 |
1″ |
42 |
110 |
85 |
66 |
4-φM12 |
12.7 |
2 |
218 |
196 |
145 |
196 |
5.8 |
32 |
11/4″ |
52 |
133 |
100 |
78 |
4-φM16 |
14 |
3 |
231 |
196 |
145 |
196 |
6.7 |
40 |
11/2 |
61 |
145 |
110 |
87 |
4-φM16 |
15 |
3 |
238 |
196 |
145 |
196 |
7.6 |
50 |
2 |
73 |
160 |
125 |
99 |
4-φM16 |
16.7 |
3 |
251 |
196 |
145 |
196 |
8.7 |
65 |
21/2″ |
92 |
180 |
145 |
118 |
4-φM16 |
17.2 |
3 |
265 |
196 |
145 |
196 |
16.8 |
80 |
3″ |
109 |
195 |
160 |
136 |
8-φM16 |
19 |
3 |
298 |
255 |
184 |
255 |
18.6 |
100 |
4″ |
140 |
215 |
180 |
156 |
8-φM16 |
18.5 |
3 |
310 |
255 |
184 |
255 |
21.2 |
DN |
D |
G |
L |
H1 |
W1 |
W2 |
Weight Kg |
|
mm |
inch |
|||||||
8 |
1/2″ |
8 |
14.3 |
65 |
177 |
196 |
145 |
5.0 |
10 |
3/4″ |
10 |
18 |
65 |
177 |
196 |
145 |
5.2 |
15 |
1″ |
15 |
22 |
72 |
188 |
196 |
145 |
5.3 |
20 |
11/4″ |
18 |
28 |
85 |
190 |
196 |
145 |
5.5 |
25 |
11/2 |
24 |
34.5 |
91 |
200 |
196 |
145 |
5.3 |
32 |
2 |
30 |
43.5 |
110 |
205 |
196 |
145 |
5.9 |
40 |
1/2″ |
38 |
49.5 |
122 |
212 |
196 |
145 |
6.2 |
50 |
3/4″ |
48 |
62 |
145 |
220 |
196 |
145 |
7.2 |
DN(mm) 1.6Mpa |
L |
D |
K |
D1 |
n-Φd |
b |
f |
H1 |
H2 |
W1 |
W2 |
Weight |
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 |
¡¡ |
The flow figure of several typical section shape and flow characteristics
The main technical parameters and indexes of body
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” shape 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 |
||||||||||||
Body rating MPa |
16£¨1.6MPa£©¡¢40£¨4.0MPa£©¡¢64£¨6.4MPa£© |
||||||||||||
Adjustable rate |
50:1 100:1 300:1 |
||||||||||||
Flange standard |
Compliance with the standard JB78-59¡¢JB-79-59£»manufacture according to the standard JB/T79.1¡¢JB/T79.2-94 |
||||||||||||
Body material |
Casting steel£¨ZG230-450£©¡¢Stainless steel£¨ZG1Cr18Ni9Ti¡¢316¡¢316L£©¡¢titanium alloy |
||||||||||||
Ball material |
Stainless steel£¨ZG1Cr18Ni9Ti¡¢316¡¢316L¡¢A105£©etc. |
||||||||||||
Stem material |
Stainless steel£¨ZG1Cr18Ni9Ti¡¢316¡¢316L£© |
||||||||||||
Packing material |
PTFE, Grafoil |
||||||||||||
Seal type |
Soft seat |
Metal seat |
|||||||||||
Seat material |
PTFE |
Carbon fiber intensified PTFE |
Stainless steel or stainless steel+ STL |
||||||||||
Leakage |
¢ö degree |
less than rated flow10-4¡¢10-5 |
|||||||||||
Operating Temp. |
N: -40¡æ-180¡æ |
M: -40¡æ-280¡æ |
H: -40¡æ-400¡æ |
The implementation standards of the electric control valve
Manufacturing standards |
GB/T 122387-89 |
Flange standards |
GB9113-2000, GB17241.6-1998 |
Structure length standards |
GB12221-89 |
Inspection standards |
GB/T 13927-92 |