Overview of pneumatic regulating ball valve:
According to the structural form, the pneumatic regulating ball valve can be divided into pneumatic O-type regulating ball valve or dynamic V-type regulating ball valve. It is mainly used with the valve positioner to make a press signal according to the input and output 4.20mA, so that
Control the rotation opening of the ball valve valve. To achieve the proportional adjustment of pipeline medium pressure, flow rate, liquid door and other parameters, among them, the pneumatic/type adjustment glass closure has knotted and removed shape objects (throwing gaps, which can adjust the flow rate according to the change of the opening area in the middle of the field, and can cut off the fluid Closed by impurities contained in the medium, suitable for the control of pulp, mortar, viscous fluid,
Pneumatic regulating ball valve principle:
The pneumatic regulating ball valve uses compressed air as the driving force to drive the ball flower to rotate back and forth, so as to achieve the opening and closing of the valve. Size, to achieve different degrees of proportional adjustment to the medium flow. When the pneumatic actuator receives the signal from the control system, it generates a corresponding thrust according to the size of the control force, and pushes the adjustment mechanism to drive the valve core to move, and completes the flow and pressure adjustment of the medium in the pipeline. It has a large rated flow coefficient. , good sealing effect, adjustable performance, etc.
The pneumatically regulated ball valve is a rotary ball valve with a 90° angle, which can also be called a pneumatic O-type ball valve. It is composed of a pneumatic actuator with a quarter stroke and a ball valve. It is a specially designed and carefully manufactured product based on the introduction of foreign advanced technology. The pneumatically regulated ball valve adopts intelligent control and positioning, and it is matched with the electric valve positioner. It can control the operation by inputting 4~20mADC signal and 0.4~0.7MPa air source to realize the adjustment of pressure, flow, temperature and liquid level. Pneumatically regulated ball valves are powered by compressed air. The valve stem drives the valve core to rotate 90° in the valve body to achieve full-opening-closed action. Pneumatically regulated ball valves are classified into metal seals and soft seals according to their sealing properties. The pneumatic O-type regulating ball valve has the advantages of compact structure, small volume, reliable operation, good sealing performance, easy maintenance, convenient installation and strong adaptability. Pneumatically regulated ball valves are particularly suitable for applications where the media is viscous, particulate-containing, or fibrous. Pneumatically regulated ball valves are widely used in industrial automation control systems such as petroleum, chemical, teaching equipment, light industry, high-voltage equipment, pharmaceutical, papermaking, etc. for long-distance centralized control or local control
Brass Double Regulating Balancing Valve with Nozzle BS 7350 Pressure Rating : PN-16 Material : Forged Brass Description : Double Regulating Balancing Valve with Nozzle Ends : Screwed Female to BS:21 Item Code : GM000275 Size : 20mm Notes : Available Valve Size : 20mm to 50mm
Brass Ball Float Valve Pressure Rating : PN-10 Material : Forged Brass Description : Brass Lever with Plastic Ball Ends : Screwed Female to BS:21 Item Code : FLB00066 Size : 15mm Notes : Available Valve Size : 15mm to 50mm
Gun Metal Ball Valve Pressure Rating : Class-150 Material : Gun Metal / Bronze Description : Full Bore, Two Piece Design, Anti Blow out stem Ball : Brass Cr. Plated Stem : HT Brass, Seats : PTFE Ends : Screwed Female to BS:21 / IS:554 Operator : Lever Operated Item Code : GM000132 Size : 15mm Notes : Available Valve Size : 15mm to 100mm
Brass Ball Valve with Strainer Pressure Rating : PN-20 Material : Forged Brass Description : Full Bore, Two Piece Design, Anti Blow out stem Ball : Brass Cr. Plated Stem : Brass, Seats : PTFE, Screen : SS 304 Ends : Screwed Female to BS:21 / IS:554 Operator : Lever Operated Item Code : FLB00285 Size : 15mm Notes : Available Valve Size : 15mm to 50mm
Brass Ball Valve Pressure Rating : PN-25 Material : Forged Brass Nickle Plated Description : Full Bore, Two Piece Design, Anti Blow out stem Ball : Brass Cr. Plated Stem : HT Brass, Seats : PTFE Ends : Screwed Female to BS:21 / IS:554 Operator : Lever Operated Item Code : GM000200 Size : 15mm Notes : Available Valve Size : 8mm to 100mm
Steel Ball Valve BSEN ISO 17292 Pressure Rating : Class-800 Bore : Full & Regular Material : Forged Steel (A105) Description : Three Piece Antistatic, Blowout Proof Stem Design Body Seat : PTFE, RPTFE, Peek Ends : Screwed, Socket Weld, Butt Weld Operator : Lever, Electric, Pneumatic Specials : Fire Safe, IBR Item Code : FCS00016 Size : 15mm Notes : Available Valve Size : 10mm to 50mm Material : LF2, F304, F304L, F304H, F316, F316L, F51, WCB, CF8, CF8M, CF3, CF3M
Cast Steel Ball Valve API 6D, BSEN ISO 17292 Pressure Rating : Class-150 Bore : Full & Regular Material : Cast Steel (WCB) Description : Two Piece Antistatic Design, Floating Ball, Anti Blowout Proof Stem Design Body Seat : PTFE, RPTFE, Peek Ends : Flanged, Butt Weld Operator : Lever, Gear, Electric, Pneumatic Specials : Fire Safe, IBR Item Code : CCS00016 Size : 15mm Notes : Available Valve Size : CLASS-150 15mm to 200mm CLASS-300 15mm to 200mm CLASS-600 15mm to 150mm Material : LCB, CF8, CF8M, CF3, CF3M, CN7M, CF10, CF10M, 3A, 4A, 5A, 6A etc.
The pneumatic regulating butterfly valve has the advantages of simple and compact structure, convenient processing, easy to manufacture large diameter, self-cleaning action, small drag coefficient and large circulation capacity. It is additionally equipped with a valve positioner, which can be controlled by input control signals (4-20mADC) and a gas source of 0.4-0.7MPa. Pneumatically regulated butterfly valves are suitable for the regulation of fluids in suspended particles and in concentrated, turbid slurry fluids. Clean media can be replaced with a valve plate with a soft seal (rubber ring, PTFE ring) to reduce leakage (up to zero leakage). The high-temperature and high-pressure working conditions can be selected by a three-eccentric hard sealing valve body. Pneumatically regulated butterfly valves are the best means of regulating flow and shutting off fluids in automated control systems. Therefore, the pneumatic regulating butterfly valve is widely applied to the pipeline of corrosive medium such as metallurgy, electric power, petroleum, chemical, air, gas, combustible gas and water supply and drainage with medium temperature â?¤550°C.
