клапан с нейлоновым диска

strengths of butterfly valve 1.It is single and compact in structure and light in weight,and easy for assembly and disassembly, and maintenance. 2.The operating torque of it is small.When turning 90(it can open or close with light and fast action. 3.It is small in flowing resistance and good in energy-saving effect,with discharge characteristic approximating inclined straight line. 4.It is festured by reliable sealing, zero leakage witj ten thousands ofopening and closing times. 5.The valve can be made of various materials, adapted ro all kinds of media. our service: our low price good quality products and promised delivery time brought the trust of client globally.If you are interested in our products ,kindly inform me anytime.We are glad to prepare a quotation for perchasing reference and quite sure our offer will extend an added advantage over to your current source of supplies.Furthermore ,we are also able to process order as per your demand.