China Good Quality Carbon Steel DN20 to DN100 300lb Wcb 2 PC Flanged 6 Duplex Ball Valves

This series of products are reliable sealing performance, maintenance-free for 20 years, switch torque light,can be installed in heat transfer stations, district heating pipe network, branch pipes, heat exchanger unit, heat transfer equipment or ancillary equipment connected to other.use for cut off . The main use of the urban heat, city gas, city water supply and drainage lines
Five Advantages:
1. integral seamless steel tube pressed full-auto welded without leaking outward.
2. PTFE+25% carbon fiber and disc spring feely compensating structure zero leakage.
3. can be directly buried without need of a high ground well,saving the engineering cost.
4. both valve and pipeling are made of the same material, without the condition of uneven sterss.
5. in multiple connection combination, for use with special working conditions.