... Ball ValveHuachao Segmented Ball Valve provides excellent modulating control with obstruction free design. The uni-body ... compound V opening provides precise equal percentage flow control with small incremental opening in the lower end ... packing: PTFE, grafoil, braided PTFEActuator: cylinder, pneumatic, electric, actuator, manual, gear, hydraulicHigh precision ball, high tightness seatLong life ...