Suction Damping Device HomeProductsSuction Damping Device Inquiry Save to Favorites GO :::::Sort::::: Name Date Added Popular ↑ ↓ Suction Damping Device(SDD) The valve was developed as cost-effective compared to existing models by improving the assembly method and changing the material [Brass -> PA46]. The valve shuts off the oil flow when the air-conditioner of the Variable Compressor is OFF... Read More Inquiry Now Motor control centers ECV External Control Valve SDD SCV DCV