NAF Trunnball

• Trunnion-mounted ball provides bidirectional tightness and excellent control performance.
• Low friction bearings ensure low torque and smooth operation, even at high differential pressures.
• Spring-loaded stem seal packing offers maintenance-free and safe operation in automated on/off and control service.
• Direct actuator mounting capabilities with NAF Turnex actuator provide high performance and vibration resistance.
• Sturdy, blowout-proof stem for high torque transmission with minimal mechanical backlash.
• Z-trim option minimizes cavitation and noise while providing excellent control characteristics.
• Easy-to-service design with off-centre valve body joint, allowing easy replacement of the ball and seals without removing the stem and actuator.
• Metal seats with a rigid welded overlay of Alloy 6 or metal-supported, reinforced PTFE seats.

Suitable for industries where media and extreme pressure conditions demand robust design, material, and performance.

The NAF Trunnball DL is an ideal solution for applications that require tightness and control in both directions, especially under high differential pressures. Its robust design and material options make it suitable for demanding applications in various industries.