Pressure is registered on one side of the diaphragm piston, or bellows and is opposed by the setpoint control spring of the manometric sensing device. The Type OSE slam-shut valve tripping pressure is determined by the setting of the control spring.
- Two-stage tripping mechanism reduces nuisance tripping caused by vibrations or inlet pressure variations.
- NPS 1 through 6 (DN 25 through 150) body sizes
- High accuracy
- Easy in-line maintenance
- Water tight
- Positive shutoff