Hawa Engineers Ltd. Supplies 3 Way- 4 Way Investment Casting Ball Valves. Hawa Engineers Ltd. Has been awarded an ISO 9001 certification. 3 Way- 4 Way Investment Casting Ball Valves come in basic floating bail and turn-on mounted design, with three pieces, end entry and top entry with options of either full or reduced bore designs basic construction variants. 3 Way- 4 Way Investment Casting Ball Valves is designed as an on/off isolation valve for a very wide range of temperatures and pressures they have inherent quick opening flow characteristics. It offers good flow control capabilities at High Pressure. Ail ball valves offer compact actuation due to their rotary quarter-turn operation. Fire safe versions are available for use in the oil and petrochemical industries.