Tubular Electric Heater4
Product Model: SRY Type
Product Exhibitor: Test Transformer / Voltage Detector / Dielectric Loss Tester / Microcomputer Relay Protection Tester / Ground Wire / Insulation Pad / Shanghai Sute Electric Co., Ltd.
Brief Introduction
SRY2 and SRY3 tubular electric heaters are used for heating oil in open or closed oil tanks. SRY4 tubular electric heater is used for heating flowing or circulating oil.
Tubular Electric Heater
I. Purpose
SRY2 and SRY3 tubular electric heaters are used for heating oil in open or closed oil tanks. SRY4 tubular electric heater is used for heating flowing or circulating oil.
II. Specifications and Technical Data
1. Specifications and dimensions: see table and Figure 2
Note: The mounting hole for SRY2 and SRY4 types is Ø72 mm
2. Working voltage allowable error: not greater than 1.1 times its rated value, and the shell should be effectively grounded.
3. Working environment: relative humidity not greater than 95%, no explosive or corrosive gases.
4. Metal tube material: No. 10 steel.
5. Maximum working temperature: SRY2 and SRY3 are 300°C, SRY4 is 100°C.
6. Working pressure for SRY2 and SRY4 types is less than 2 kg/cm².
7. The length of the fastener for SRY3 type is 25 mm.
III. Usage, Maintenance, and Precautions
1. The dimension "B" in the dimension drawing must be fully immersed in oil to avoid burning out the element. The heated oil should be non-corrosive.
2. The working liquid level for SRY3 type must be below the fastener and above the dimension line "B".
3. When melting solid oils such as asphalt and paraffin, reduce the voltage for use, and then raise to rated voltage after melting, to prevent heat concentration and reduce the service life of the element.
4. If carbon deposits are found on the tube surface, they must be removed before use to avoid reducing efficiency or even burning out the element.
5. The element should be stored in a dry place. If the insulation resistance drops below 1 megohm due to long-term storage, it can be dried in an oven at about 200°C for several hours (or apply low voltage to the element for several hours) to restore the insulation resistance.
|
Model FL2 |
Voltage
|
Power (kW) |
Dimensions and Installation Dimensions (mm) |
Weight (kg) |
||
|
A |
B (Immersed Length in Oil) |
C |
||||
|
SRY2-220/1 |
220 |
1 |
307 |
230 |
" |
1.45 |
|
SRY2-220/2 |
220 |
2 |
507 |
430 |
" |
1.90 |
|
SRY2-220/3 |
220 |
3 |
707 |
630 |
" |
2.35 |
|
SRY2-220/4 |
220 |
4 |
922 |
845 |
" |
2.83 |
|
SRY3-220/1 |
220 |
1 |
625 |
375 |
570 |
0.77 |
|
SRY3-220/2 |
220 |
2 |
825 |
575 |
770 |
1.01 |
|
SRY3-220/3 |
220 |
3 |
925 |
675 |
870 |
1.13 |
|
SRY3-220/4 |
220 |
4 |
1125 |
875 |
1070 |
1.37 |
|
SRY4-220/5 |
220 |
5 |
697 |
620 |
" |
2.45 |
| SRY4-220/6 | 220 | 6 | 807 | 730 | " | 2.70 |
| SRY4-220/8 | 220 | 8 | 1007 | 930 | " | 3.05 |
