65 kVA Heat Treatment Equipment (PWHT Machine)

65 kVA Heat Treatment Equipment (PWHT Machine)

Product Code : PWHT-7002

65 KVA Heat Treatment Equipment

The traditional Low-Voltage Electrical Resistance method of Heat Treating using Ceramic Pad Heaters and Ceramic blankets controlled by step down transformers to provide a quick and convenient approach to many jobs, particularly preheat and PWHT. Most electrical resistance heat treating is performed either with the PWHT Tech 6-way control console.

PWHT TECH 65KvA Heat Treatment Modules include our unique ‘Advantage has been constructed to provide power to electrical resistance heaters. Suitable for onsite and shop working. The output from the unit is split into six individual heating circuits for temperature control. Each output circuit has 10.8 kW of power, which is sufficient capacity for four standard ceramic pads rated at 2.7 kW and connected in parallel. There are 3 operational methods of heat control; fully-integrated individual programmers, an external programmer for all channels, and individual proportional energy regulators. Sufficient for 4 ceramic heater pads per channel, this mobile unit is suitable for both site and fabrication shop use.

PWHT Tech Electrical Resistance Heat Treatment Machine advantages:
•  Control and document welding preheat to reduce thermal stress.
•  Improve the microstructure and durability of the heat-affected zone.
•  Temper the metal and reduces tensile stresses, minimizing the risk of brittle fracture, stress and corrosion cracking and metal fatigue.
•  Ensure the structural integrity of the vessel or unit during treatment.
•  Get frozen lines flowing again quickly, and keeps them flowing until your plant’s steam tracing system is working again.
•  Improve the integrity of welded components and minimize the risk of fabrication-related cracking.
•  Decontaminate huge storage tanks that once held toxic agents.

TRANSFORMER: Three Phase, Air Natural, Class 65kV
Primary winding connected in Delta Secondary winding connected in Star

PRIMARY SUPPLY: Primary voltage: 380V, 415V, 440V

Primary current: 106A, 97A, 92A

Frequency: 50/60 Hz

6 Temperature controlled output channels
Max load per output channel: four 60V, 2.7kW heating elements
Maximum current per output channel: 180A
Auxiliary Output: Two 110V, 5A, 50/60Hz fused output sockets.

CONTROL : Six 110V Energy Regulators
Six 110V Temperature Controllers
One Multi-pin socket for remote programmer

Mode Selection: Six Auto / Manual switches

Indicators: Six 110V neon channel indicators

Dimensions: 810L x 800 W x 840H mm

Weight: 412kg


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