Specially surface harden treatment for ball and seat provides longer working life, particularly with abrasive fluid such as slurries and pulp stock.
Metal seats with graphite seals lowers the possibilities of leaking during fire conditions. Essential for fire-safe conditions.
Valve ball remains in close and tight contact with spring loaded ball seat for maximum sealing effects, no matter in high pressure and low pressure conditions. Spring loaded ball seat also helps to obtain stable opening and closing torques in high differential pressure situation during high and low temperature conditions.
Ball and seat underwent machine lapping for smooth contact between the two circular surfaces. Conforming to ANSI / FCI 70-2 Class V and Class VI (optional).
Integral twin pattern ISO 5211 mounting pad for double & spring return actuator.
Self-adjusting stem packing assembly with Belleville spring for temperature fluctuations, vibration, and is secured.
EN10204-3.1 test Certificate Available