A ball valve includes a valve body, a ball chamber within the valve body and a valve ball within the ball chamber. The ball valve further includes valve seats in contact with the valve ball. Each valve seat includes a front face, a rear face and an outer face. The front face includes two or more low pressure contact rings and two or more high pressure contact rings that provide enhanced sealing against the valve ball under both high and low pressure conditions. The rear and outer face each include independent seal zones.