Technical Specifications; Overview Of The Welding Process - omisa Hydr. 250 Manual De Instrucciones

O . M . I . S . A . S r l
Via Verga 9/11
20845 Sovico (MB), Italy
3.4 Technical Specifications
HÜRNER Manual Hydr. 250
Power Specifications
Voltage
Frequency
Total Rated Powe
Heating Element
Facing Tool
Hydraulic & Control Unit
Hydraulic Specifications
.
Operating Pressure max.
Cylinder
Ambient Temperature Range
Hydraulic Oil
Operating Range
Dimensions
Basic Machine Chassis
Facing Tool
Heating Element
Hydraulic & Control Unit
Carrying and Storage Rack
Weights
Basic Machine Chassis
Facing Tool
Heating Element
Hydraulic & Control Unit
Carrying and Storage Rack
Transport Box
All Reducer Inserts
3.5

Overview of the Welding Process

The welder performs the welding process in the following manner:
• Applicable welding times and pressures are looked up in the
overview tables in the appendix.
• Pipes are clamped into the frame.
If pipes with an outside diameter smaller than the maximum
dimension of the machine are welded, select the reducer set
needed. The 8 individual inserts of the set that matches the out-
side diameter of the pipe to be welded have to be attached to
the clamps of the machine chassis using the provided bolts.
• Pipe butts are worked using the pipe facing tool.
• Pipe alignment is checked.
• The drag pressure, i.e. the minimum pressure to set the carriage
in motion and "drag" it along, is recorded at the machine.
• The pressures relevant to the welding operation are set.
• The heating element is inserted after cleaning it and checking its
temperature.
• The welding process proper is performed (see section 4), and the
operator waits for the jointed pipes to cool down.
• After the cooling time is over, pressure can be shutt off from the
pipes and the joint can be taken out of the chassis.
Version April 2020
230 V
50 / 60 Hz
3.15 kW
1.50 kW
1.05 kW
0.60 kW
160 bar
5.10 cm²
–5°C to +50°C
HF-E 15
75 through 250 mm
780 × 500 × 505 mm
600 × 420 × 320 mm
470 × 510 × 55 mm
480 × 310 × 300 mm
380 × 270 × 555 mm
54 kg
15 kg
9 kg
23 kg
8 kg
37 kg
58 kg
Manual Hydr. 250 User's Manual
9
EN