Quick opening closure for pig launcher and receiver! How it works!

quick opening closure,scraper,quick opening. pipeline qu,quick-actuating closures,scrapers,slurry scrapers,pig trap closures,pipeline closures,scraper traps,pipeline and vessel closures,manure scraper,scraper special,ice scraper,scraper tractor special,cw-28 scraper spec,replacing broken eye on hydraulic cylinder for cat 631 scraper,cw-28 scraper specs,cw220 scraper specs,cw215 scraper specs,paint scraper,chain scraper,scraper system