Series pneumatic ball valves are widely used in natural gas, oil, chemical, metallurgy, paper, electricity, mining, printing and dyeing, biological pharmaceuticals, household chemicals, food and beverage, water treatment and air treatment industries fluid control or regulate the control and automation pneumatic instrument supporting the use.
Series pneumatic valve structure is characterized by:
◆ Pneumatic Actuators: A new series of GT type pneumatic actuator, double acting and single acting (spring return), rack and pinion drive, safe and reliable; large diameter valves series HAW pneumatic actuator fork drive reasonable structure, large output torque, double acting and single acting (spring return); reference to the pneumatic actuator sample.
The shell structure: fixed ball valve body according to different user needs and the actual working conditions designed to cast the structure of three forms of structure, forging structure and welding, the welded structure of ball valve is mainly applied to buried use.
◆ unique seat sealing structure:
Lip elastomeric seals structural design of floating ball valve, to ensure the reliability of sealing, low voltage, ultra low pressure or vacuum; conditions with the ball valve, leaf spring-loaded seat seal structure to ensure long-term reliable ball valve seal. , High temperature ball valve seat material could be a bit polystyrene or metal materials.
Fixed ball valve under pressure from the media, the nature and sealing requirements of the different seal structure, select the ball before the ball sealing structure before and after the double seal structure. , High temperature ball valve seat material could be a bit polystyrene or metal materials.
The ◆ excretion and blocked on the downstream side of the seat: When the valve is turned off, the liquid block cavity in the body of accumulated matters are excreted through the excretion device.
◆ automatic pressure relief structure: among the cavity pressure is the abnormal rise in the cavity medium can rely on its own thrust to promote seat and automatic pressure relief to ensure the valve to mention safety.
◆ the reliable sealing of the valve stem: the stem down to seal the downloading structure down sealing the sealing force increases with the increased media pressure, and it could ensure reliable sealing of the valve stem, and when the stem an abnormal pressure , stem not emit.
Structural fire protection: according to the conditions and the needs of users, the valve can be designed for structural fire protection. The ball valve fire-resistant design to the implementation of the API607 and JB/T6899 and other standard provisions, once the soft ring of fire leaving burning fire structure of the ball valve to prevent substantial leakage of the medium, to prevent the further expansion of the fire.
◆ Anti-static structure: when the operation of the valve, due to the friction between the ball and seat, will produce bovine electrostatic charge build-up on the ball, in order to prevent static electricity sparks, especially on the valve to set the static device will accumulate in the sphere charge export.
Full Bore structure and necking structure: In order to meet the different needs of users, the two series of full bore and reduced bore ball valve products of this company. Channel diameter and pipe diameter of the full bore ball valve, easy to clean, and reduced bore ball valve series is relatively light weight, but the flow resistance is only about 1/7 of the same caliber cut-off valve, so the shrinking prospects for a wider application of the diameter of the ball valve series . |
