The performance of short glass fiber reinforced composites is not high. The upper limit of the working temperature of various FRP valves is generally 120~140 ℃, and the working pressure is 0.8~1.0MPa. This working pressure range is only equivalent to the working pressure range in the low-pressure area. The glass fiber reinforced plastic for pneumatic ball valve introduced in this paper is a composite material with continuous glass fiber cloth as reinforcement and vinyl ester resin as matrix material. FRP reinforced with continuous glass fiber cloth has the advantages of good impact strength, small creep, good heat resistance and small molding shrinkage. Similar to the application conditions of FRP pipes, vinyl resin has good temperature resistance, corrosion resistance and processing performance, and is often used for anti-corrosion protection of chemical equipment.

Forged steel pneumatic ball valve is applicable to various pipelines with pressure rating of CLASS600LB, CLASS800LB, CLASS900LB, CLASS1500LB, and operating temperature of - 46 ℃~180 ℃ (seal ring includes RPTFE, MOLON, PEEK), - 46 ℃~425 ℃ (seal surface is hard seal), mainly used to cut off or connect the medium in the pipeline. The corresponding forged steel pneumatic ball valve can also be designed and manufactured according to the user's actual working conditions and special requirements. It can be made of different materials and can be used for water, steam, oil, nitric acid, acetic acid and other media. Structural Diagram of Forged Steel Pneumatic Ball Valve Forged Steel Ball Performance Parameters Test Pressure (Mpa) Nominal Pressure (Mpa) Pressure Class 1.62.54.06.410.016.025.025.0150300406009001500 Strength test 2.43.86.09.615.02437.53.17.810.215.323.138.4 Sealing test 1.82.84.47.011.017.627.52.25.62.25.67.111.216.828.1 Air tightness test 0.5-0.7 Working temperature PTEE 150 ℃ PPLE 300 ℃ Carbon fiber 350 ℃ Applicable medium C: Water, oil, steam P: Nitric acid (temperature 200 ℃) R: Acetic acid type (temperature 200 ℃ forged steel pneumatic ball valve shall comply with the standard design code standard BS5351 pressure temperature class standard ANSIB16.34 socket welding end shall refer to the standard ANSIB16.11 threaded end shall refer to the standard ANSIB1.20.1 inspection and test standard API598 forged steel pneumatic ball valve outline dimension pressure class high-pressure forged steel pneumatic ball valve specification high-pressure forged steel pneumatic ball valve dimension weight (kg) CLASS600CLASS800DNNPSLdNPTDdHW61/46061/414.110441000.8103/86093/817.510441001.0151/26012.51/22210441001.5203/467173/427.5134911022517623134.5135711053211/4882811/443.5137815064011/2983811/249.516821608CLASS900CLASS150061/46561/414.110441000.95103/87093/817.510521001.1151/27512.51/22210621101.7203/490173/427.513681102.225110023134.513781505.73211/4 1102811/443.513911607.24011/21283811/249.51610218010.8