OUYI Fully welded ball valve combines the strength of forged components with a compact structure design, are complied to per API 6D, ASME B16.34 standard, engineered for heavy duty, limited-maintenance performance and made of forged steel to assure uniform fine grain structure and toughness, and the size range is from 2 to 60 inch, pressure rating is from 150LB to 2500LB. This valve is commonly selected for gas transmittion, gas pipeline, gas plants etc a number of applications.