*Adopting PWM control technology,constant current,accurate current control.
*High frequency arc starting,no matter the current is high or low,the arc starting rate high.
*DC AC tig aluminium welding machine steady welding current,esthetic shaping of welding seam.
*Adjustable pulse current and pulse frequency, apply to many kinds of welding technology.
*ACDC tig welder one machine serves several purposes,saving the welding cost.
*The machine can automatic welding,Optional cycling water tank.
*Can be used to weld aluminium, stainless steel,carbon steel,alloyed steel,copper,titanium etc.Â
| Model: | AC DC TIG-315Â |
| Input power Voltage Frequency(V,Hz): | AC380(three phase)±15%,50/60 |
| Rated input power capacity(KVA): | 8.9 |
| No-load voltage(V): | 45 |
| Output current range.(A):  | 20-315 |
| Rated output voltage(V): | 22.6 |
| Duty cycle (%)(25ºC): | 60 |
| No-load loss(W): | 40 |
| Arc-starting: | HF |
| Efficiency(%):Â | 85 |
| Power factor (COSφ): | 0.93 |
| Insulation class: | F |
| Weight(KG): | 34 |
| Overall dimension(mm): | 560×364×430 |
| Case protection degree: | IP21S |
| Pre-flow time(s): | 0-2 |
| Duty ratio(%):  | 20-8 |
| Current down-slope time(s): | 0-5 |
| Post-flow time(s): | 2-10 |
| Remote interface: | with |
| AC welding thickness(mm):     | 0.8-10 |
 ACDC tig aluminum welding machine product Characteristics:
*Adopting PWM control technology,constant current,accurate current control.
*High frequency arc starting,no matter the current is high or low,the arc starting rate high.
*DC AC tig aluminium welding machine steady welding current,esthetic shaping of welding seam.
*Adjustable pulse current and pulse frequency, apply to many kinds of welding technology.
*ACDC tig welder one machine serves several purposes,saving the welding cost.
*The machine can automatic welding,Optional cycling water tank.
*Can be used to weld aluminium, stainless steel,carbon steel,alloyed steel,copper,titanium etc.Â
| Model: | AC DC TIG-315Â |
| Input power Voltage Frequency(V,Hz): | AC380(three phase)±15%,50/60 |
| Rated input power capacity(KVA): | 8.9 |
| No-load voltage(V): | 45 |
| Output current range.(A):  | 20-315 |
| Rated output voltage(V): | 22.6 |
| Duty cycle (%)(25ºC): | 60 |
| No-load loss(W): | 40 |
| Arc-starting: | HF |
| Efficiency(%):Â | 85 |
| Power factor (COSφ): | 0.93 |
| Insulation class: | F |
| Weight(KG): | 34 |
| Overall dimension(mm): | 560×364×430 |
| Case protection degree: | IP21S |
| Pre-flow time(s): | 0-2 |
| Duty ratio(%):  | 20-8 |
| Current down-slope time(s): | 0-5 |
| Post-flow time(s): | 2-10 |
| Remote interface: | with |
| AC welding thickness(mm):     | 0.8-10 |
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Directional control valves (DCVs) are one of the most fundamental parts of hydraulic and pneumatic systems. DCVs allow fluid flow (hydraulic oil, water or air) into different paths from one or more sources. DCVs will usually consist of a spool inside a cylinder which is mechanically or electrically actuated. The position of the spool restricts or permits flow, thus it controls the fluid flow.
The spool (sliding type) consists of lands and grooves. The lands block oil flow through the valve body. The grooves allow oil or gas to flow around the spool and through the valve body. There are two fundamental positions of directional control valve namely normal position where valve returns on removal of actuating force and other is working position which is position of a valve when actuating force is applied. There is another class of valves with 3 or more positions that can be spring centered with 2 working position and a normal position.
GRH appreciates your enquiry upon your hydraulic system.
Section Valve,Hydraulic Sectional Valves,Pressure Control Sectional Valve,Sectional Valves
GRH , https://www.grhcn.net