Gas/Air Switching Valve SS5Y7-X424-Q Pneumatic circuit X A A OUT (SY7140) Gas IN Air IN (SY5140R) Service life can be extended by blowing the air to cool the tip after arc welding. aTip service life is improved, and the number of tip replacements and the tip costs are reduced. Shield gas valve and air blow valve are integrated. Torch Air Gas Pressure switch Flow switch Gas/Air switching valve Power consumption 0.5 W Energy saving product Tip service life extended Space saving/Compact 93