Steam Turbine Bolt Heater (Hard and Hose Type)
Product Overview
To meet the needs of assembling and disassembling bolts in high, medium, and low-pressure cylinders of steam turbines and improve work efficiency, our company has developed and produced two major series with over 10 varieties of bolt heating devices. The QARB steam turbine bolt low-pressure heating device has been used by many power plants. This device is safe, reliable, easy to operate, has a long service life, and delivers excellent results, making it highly favored by users. The QAK-I DC adjustable bolt heating control cabinet, used in conjunction with DC bolt heaters, features stable and adjustable DC output voltage (0-220V adjustable), multiple output channels (up to 12 loads), high output power, safety, and reliability.
Technical Parameters
Model: QARBΦ8-Φ42
Length: < 150mm-2600mm
Bore Diameter: Heated Bolt Diameter: M42x4-M200x4
Center Hole Diameter: From Φ8mm to Φ45mm
Rated Voltage: AC 220±20V
DC 130±20V (Adjustable)
Rated Current: 5A-80A
Power: 0.5KW-20KW
Usage Precautions
1. The control cabinet housing must be reliably grounded.
2. The phase and neutral wires between the bolt heater plug and the cabinet socket must be correctly connected; misconnection is strictly prohibited.
3. When installing or removing the bolt heater, the power switch must be turned off. For ZJK-series control cabinets, the voltage adjustment and indication should be at the minimum position; for WQJ low-voltage control cabinets, voltage shifting under load is strictly prohibited.
4. When connecting loads, pay attention to the balance between the three phases.
5. If connectors are damaged, they must be replaced with identical ones.
6. The dedicated bolt heater must be manufactured according to the specific geometric dimensions of the bolt. When ordering, please provide: a. Bolt outer diameter; b. Bolt hole diameter; c. Bolt total length; d. Nut length; e. Information on the matching heating control cabinet.
&
