Brass swing check valve: 1.Forged body 2.ISO9001,CE 3.Scientific design,fast delivery 4.Perfectly sealed Threaded brass swing check valveCertificate:ISO9001:2000,CE14 ... °c~+100°cWorking medium:Water,gas,oil.,etcFeatures:♣ Threaded brass swing check valve is suitable for hot and cold water,compressed air or ... at your service in 24 hours! Scientific-designed thread brass swing check valve F/F