Good stability with cage guided trim of large guiding area. High control precision with flow ports on cage allowing medium to go through and pressure is resumable. It is suitable for application with high differential pressure. Easy maintenance with compact trim design, allowing parts taken out of body directly from top. Emergency shut off requirement can be meet with soft seated design with good tightness. Trims of various designs are available, including single stage, multi-hole, multistage, low noise, cavitation resistance etc. Various noise control parts are available including silencer and dynamic attenuator etc.