・Valves are attached to round cylinders.
・Some models have a built-in speed control valve.
・The speed is easier to adjust.
・With auto switch (CDVJ series: CDVJ5, CDVJ3,
CDVM series: CDVM5, CDVM5K, CDVM3, CDVM3K,
CDV3 series: CDV3, CDV3K,
CDVS1 series: CDVS1, CDVS1K)