Product description
As one of the most common valves, the wafer type electric butterfly valve is suitable for the medium of water, oil and other liquid medium. The valves with two-way seal function can be installed in any direction and not be affected by the spatial position and the medium flow.
The parameters
| Body ratings | PN1.0/PN1.6Mpa |
| Body size | DN40-DN800 |
| Seal material | EPDM\PTFE |
| Stem seal | NBR\HNBR |
| Body material | HT2000/ Gray cast iron, ductile cast iron/QT450 |
| Disc material | Â Ductile cast iron QT450(electroplating, spray)\SUS304 Stainless Steel\SUS316 Stainless steel |
| Body connections | Â Wafer |
| Flange | Special flange for butterfly valve |
| Power supply | AC220V 50HZ |
| Control signal | Switch action\modulation action 4~20mA 0~5V |
| Output signal | Switch position indication\passive contact feedback\feedback 0-1KΩ\4~20mA 0~5V |
| Operating pressure | PN1.6Mpa |
| Medium Temp | Below120 Celsius degree(The higher level of temperature resistance is prepared) |
| Ambient Temp | Below 50 Celsius degree |
| Flow coefficient(CV) | Â Please download the data on our website for reference. (Custom flow coefficient depends on the customer's requirement. ) Â |
| Applicable medium | Water, oil, gas, corrosive medium |
Installation Diagram
|
DN (mm) |
 L |
 D |
 K |
 N-φD |
 H2 |
 H1 |
 W1 |
 W2 |
Weight Kg |
40 |
33 |
148 |
105 |
4-φ16 |
48 |
210 |
138 |
76 |
5.2 |
50 |
43 |
165 |
125 |
4-Φ18 |
80 |
314 |
160 |
137 |
5.9 |
65 |
46 |
185 |
145 |
4-φ18 |
89 |
327 |
160 |
137 |
6.3 |
80 |
46 |
200 |
160 |
8-φ18 |
95 |
333 |
160 |
137 |
6.7 |
100 |
52 |
220 |
180 |
8-φ18 |
114 |
385 |
196 |
145 |
7.8 |
125 |
56 |
250 |
210 |
8-φ18 |
127 |
400 |
196 |
145 |
9.3 |
150 |
56 |
285 |
240 |
8-φ22 |
139 |
442 |
255 |
182 |
11.1 |
200 |
60 |
340 |
295 |
8-φ22 |
175 |
480 |
255 |
182 |
20.3 |
250 |
68 |
395 |
350 |
12-φ22 |
203 |
522 |
255 |
182 |
27.3 |
300 |
78 |
445 |
400 |
12-φ22 |
242 |
567 |
255 |
182 |
36.8 |
350 |
78 |
505 |
460 |
16-φ22 |
267 |
598 |
255 |
182 |
 |
400 |
102 |
565 |
515 |
16-φ22 |
297 |
648 |
255 |
182 |
 |
450 |
114 |
615 |
565 |
20-φ26 |
315 |
678 |
255 |
182 |
 |
500 |
127 |
670 |
620 |
20-φ26 |
348 |
 |
 |
 |
 |
600 |
154 |
780 |
725 |
20-φ30 |
444 |
 |
 |
 |
 |
700 |
165 |
895 |
840 |
24-φ30 |
528 |
 |
 |
 |
 |
800 |
190 |
1015 |
950 |
24-φ33 |
590 |
 |
 |
 |
 |
The main parts materials of the electric butterfly valve
Part name |
Material |
Body |
WCB,QT450-10,HT200,HT250 |
Disc |
WCB,QT450-10,HT200,HT250,SUS304,SUS316 |
Shaft |
2Cr13 |
Seal ring |
Nitrile oil-proof rubber,PTFE |
Packing |
Grafoil |
The implementation standards of the electric butterfly 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 |
Control Diagram
  Â
Why choose GRAT Valve?
1,Tiny flow control valve only 0-10L/hour.
2,Quick switch control valve only 4-6s.
3,Simple,Long-life,Reliable and free Maintenance.
4,One hundred thousand times failure free operation.
5,One sample order is welcome.
6,Technical support in 24 hours for your service.
Why choose GRAT Valve?
1,Tiny flow control valve only 0-10L/hour.
2,Quick switch control valve only 4-6s.
3,Simple,Long-life,Reliable and free Maintenance.
4,One hundred thousand times failure free operation.
5,One sample order is welcome.
6,Technical support in 24 hours for your service.
FAQ;
We are factory,we have our own brand Grat.
Â
2,How long is your delivery time?
Generally it is 3-7 days if the goods are in Stock.Or It is 7-10days if the goods are not in stock.it is according to quantity.
Â
3,Do you provide sample? it is free or extra?
Yes,we could offer the sample,but you have to pay the cost and freight.
Â
4,What is your terms of payment?
we can accept paypal,Western union and T/T payment.
If payment <=1000 usd,100% in advance.If payment >=1000usd,50% T/T in advance,balance before shippment.
Company info
Contact Informaion;
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 before customer place the order
2.In 24 hours response after sale
3.One year warranty
4.Safe packing for shipment
5.Welcome sample order
Â
Product description
As one of the most common valves, the wafer type electric butterfly valve is suitable for the medium of water, oil and other liquid medium. The valves with two-way seal function can be installed in any direction and not be affected by the spatial position and the medium flow.
The parameters
| Body ratings | PN1.0/PN1.6Mpa |
| Body size | DN40-DN800 |
| Seal material | EPDM\PTFE |
| Stem seal | NBR\HNBR |
| Body material | HT2000/ Gray cast iron, ductile cast iron/QT450 |
| Disc material | Â Ductile cast iron QT450(electroplating, spray)\SUS304 Stainless steel\SUS316 Stainless steel |
| Body connections | Â Wafer |
| Flange | Special flange for butterfly valve |
| Power supply | AC220V 50HZ |
| Control signal | Switch action\modulation action 4~20mA 0~5V |
| Output signal | Switch position indication\passive contact feedback\feedback 0-1KΩ\4~20mA 0~5V |
| Operating pressure | PN1.6Mpa |
| Medium Temp | Below120 Celsius degree(The higher level of temperature resistance is prepared) |
| Ambient Temp | Below 50 Celsius degree |
| Flow coefficient(CV) | Â Please download the data on our website for reference. (Custom flow coefficient depends on the customer's requirement. ) Â |
| Applicable medium | Water, oil, gas, corrosive medium |
Installation Diagram
|
DN (mm) |
 L |
 D |
 K |
 N-φD |
 H2 |
 H1 |
 W1 |
 W2 |
Weight Kg |
40 |
33 |
148 |
105 |
4-φ16 |
48 |
210 |
138 |
76 |
5.2 |
50 |
43 |
165 |
125 |
4-Φ18 |
80 |
314 |
160 |
137 |
5.9 |
65 |
46 |
185 |
145 |
4-φ18 |
89 |
327 |
160 |
137 |
6.3 |
80 |
46 |
200 |
160 |
8-φ18 |
95 |
333 |
160 |
137 |
6.7 |
100 |
52 |
220 |
180 |
8-φ18 |
114 |
385 |
196 |
145 |
7.8 |
125 |
56 |
250 |
210 |
8-φ18 |
127 |
400 |
196 |
145 |
9.3 |
150 |
56 |
285 |
240 |
8-φ22 |
139 |
442 |
255 |
182 |
11.1 |
200 |
60 |
340 |
295 |
8-φ22 |
175 |
480 |
255 |
182 |
20.3 |
250 |
68 |
395 |
350 |
12-φ22 |
203 |
522 |
255 |
182 |
27.3 |
300 |
78 |
445 |
400 |
12-φ22 |
242 |
567 |
255 |
182 |
36.8 |
350 |
78 |
505 |
460 |
16-φ22 |
267 |
598 |
255 |
182 |
 |
400 |
102 |
565 |
515 |
16-φ22 |
297 |
648 |
255 |
182 |
 |
450 |
114 |
615 |
565 |
20-φ26 |
315 |
678 |
255 |
182 |
 |
500 |
127 |
670 |
620 |
20-φ26 |
348 |
 |
 |
 |
 |
600 |
154 |
780 |
725 |
20-φ30 |
444 |
 |
 |
 |
 |
700 |
165 |
895 |
840 |
24-φ30 |
528 |
 |
 |
 |
 |
800 |
190 |
1015 |
950 |
24-φ33 |
590 |
 |
 |
 |
 |
The main parts materials of the electric butterfly valve
Part name |
Material |
Body |
WCB,QT450-10,HT200,HT250 |
Disc |
WCB,QT450-10,HT200,HT250,SUS304,SUS316 |
Shaft |
2Cr13 |
Seal ring |
Nitrile oil-proof rubber,PTFE |
Packing |
Grafoil |
The implementation standards of the electric butterfly 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 |
Control Diagram
  Â
Why choose GRAT Valve?
1,Tiny flow control valve only 0-10L/hour.
2,Quick switch control valve only 4-6s.
3,Simple,Long-life,Reliable and free Maintenance.
4,One hundred thousand times failure free operation.
5,One sample order is welcome.
6,Technical support in 24 hours for your service.
Why choose GRAT Valve?
1,Tiny flow control valve only 0-10L/hour.
2,Quick switch control valve only 4-6s.
3,Simple,Long-life,Reliable and free Maintenance.
4,One hundred thousand times failure free operation.
5,One sample order is welcome.
6,Technical support in 24 hours for your service.
FAQ;
We are factory,we have our own brand Grat.
Â
2,How long is your delivery time?
Generally it is 3-7 days if the goods are in Stock.Or It is 7-10days if the goods are not in stock.it is according to quantity.
Â
3,Do you provide sample? it is free or extra?
Yes,we could offer the sample,but you have to pay the cost and freight.
Â
4,What is your terms of payment?
we can accept paypal,Western union and T/T payment.
If payment <=1000 usd,100% in advance.If payment >=1000usd,50% T/T in advance,balance before shippment.
Company info
Contact Informaion;
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 before customer place the order
2.In 24 hours response after sale
3.One year warranty
4.Safe packing for shipment
5.Welcome sample order
Â
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