The size we can offer is from DN150(6") to DN1200(48") Working temperature: _15°C to 150°C Working pressure: PN10, PN16 1.Short structure length, lightweight, easy for location and installation 2.Bolt fittings convenient in maintaining and replacing 3.Simple structure, pins connect the stem and plate of valve, steadily positioning. 4.Apply for single standard valve installation 5.Seat sealing element can be changed regularly 6.Body lining of rubber vulcanization ensure a stable driving torque 7.Minimized operating torque, energy_saving, you can choose lever, worm gear, pneumatic apparatus, electronic apparatus or combination driving operation according to working requirements 8.Applicable of flange: replaceable seat with back use the special butterfly valve flange for installation, replaceable seat without back or valve body line with rubber seat apply to professional butterfly valve flange or welded flange, various flange installation 9.Shaft sealing can be use cooper line and o_rings combined sealing, lower part of the stem adopt bearing structure under positioning