SRY Type Tubular Electric Heater Specifications and Technical Data

Tubular Electric Heater4
Product Model: SRY Type
Product Exhibitor: Test Transformer/Voltage Detector/Dielectric Loss Tester/Microcomputer Relay Protection Tester/Grounding Wire/Insulation Mat/Shanghai Sute Electric Co., Ltd.
Brief Introduction
SRY2 and SRY3 type tubular electric heaters are used for heating oil in open or closed oil tanks. SRY4 type tubular electric heater is used for heating flowing or circulating oil.


Tubular Electric Heater


I. Application
　　SRY2 and SRY3 type tubular electric heaters are used for heating oil in open or closed oil tanks. SRY4 type 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 tolerance: not greater than 1.1 times the rated value, the shell must 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. Fastener length for SRY3 type is 25 mm.
III. Usage, Maintenance, and Precautions
1. Dimension "B" in the outline drawing must be fully immersed in oil to avoid damaging the element. The heated oil should be non-corrosive.
2. For SRY3 type, the working liquid level must be below the fastener and above dimension line "B".
3. When melting solid oils such as asphalt and paraffin, reduce the voltage during use, and then increase to rated voltage after melting to prevent heat concentration and reduce element service life.
4. If carbon deposits are found on the tube surface, they must be completely removed before reuse to avoid reduced efficiency or even element damage.
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 restored by drying in an oven at about 200°C for several hours (or by applying low voltage to the element for several hours).
 


















































































































Model


FL2



Voltage
(V)


 



Power
(kW)



Dimensions (mm)



Weight
(kg)



A



B (Immersion 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


SRY4-220/62206807730"2.70
SRY4-220/822081007930"3.05