Bimetallic Trap BK27
Overview
The thermo-sensitive element of bimetallic trap is a bimetallic element cast through a special process by two metals of different expansion ratio.When the bimetallic element expands after heated,different expansion ratio results in bending.The thermo-sensitive element produced on the basis of this quality can act as a switch.Bimetallic Traps are divided into adjustable offline (BK,CS17H and CS47) and online (adjustable bimetallic element TB).
Merits
1.Simple structure,easy to install and maintain,resistant to water hammer and superb emptying performance.
2.Water seal by high-temperature condensate,no leakage of fresh steam (zero leakage).
3.Flexible and noiseless.
4.Water hammer resistance with no effect from abrupt pressure changes.
5.Adoptable for overheat steam system.
6.Adoptable for high-pressure and high-temperature steam pipes.
7.Good air discharge quality with resistance to coldness.
|
Shell pressure grade |
Load leakage |
Used medium |
Permitted backpressure rate |
Energy saving effect |
Use superheated steam |
|
1.6、 2.5、 4.0、 6.4、 10MPA |
0% |
Steam、 Condensate water |
≥75% |
Excellence |
Adaption |
|
Maximum operating pressure differential |
Freezing resistance |
Drainage method |
Maximum Allowable temperature |
Air exhaust system |
Resis |
|
10.0MPA |
Excellence |
Continue mode |
420~550℃ |
Automatic |
Adaption |
|
Product model |
Calibre |
Flange |
Thread/ welding |
H1 |
H2 |
W |
weight |
Pressure Change range |
(MPa) Nominal pressure |
|
BK271 BK274 BK276 |
15~20 25 |
230 |
130 |
105 |
25 |
105 |
5.5/8.3 |
0.1-6.4 |
6.4 |
|
Part and component name |
Material |
|
Valve body、Valve cover |
Carbon steel、Alloy steel |
|
Bimetal |
Stainless steel |
|
Valve seat |
Stainless steel |
|
Valve rod |
Stainless steel |
|
Filtrating screen |
Stainless steel |
Note
1.Please provide operating pressure and operating pressure difference,generating quantity of condensate water,operating temperature,connecting mode and standards in selecting product models.
2.The load of condensate Water's safety coefficient reaches 2 to 3 times in general.
3.Please make sure the drain valve is installed properly,maintained regularly,cleaned up and operates under the normal condition,so as to extend its service life.
Key specifications
| Valve body, Valve cover | Carbon steel, Alloy steel |
|---|---|
| Bimetal | Stainless steel |
| Valve seat | Stainless steel |
| Valve rod | Stainless steel |
| Filtrating screen | Stainless steel |
