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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 pipeline are made of the same material, without the condition of uneven stress.
5. in multiple connection combination, for use with special working conditions.
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

Specification:

NO. Name Material
1 Body ASTM, A53
2 Ball AISI 304
3 End piece ASTM A53
4 Seat 25% C +PTFE
5 Stem-s AISI304
6 Spring SM20C
7 O-ring Viton
8 DU-bushing Spcb+ptfe
9 Stem neck AISI 1020(SM20C)
10 Thrust bearing PTFE


Size NPS A B L D D1 D2
GB      EN
DN15 3/8 129 64 210 15 18 21.3 42
DN20 3/4 129 64 230 15 25 26.7 42
DN25 1 159 76 230 20 32 33.4 48
DN32 11/4 159 85 260 25 42 42.2 60
DN40 11/2 230 95 300 32 48 48.3 76
DN50 2 230 100 300 40 57 60.3 89
DN65 21/2 300 159 300 50 76 76.1 114
DN80 3 300 170 300 65 89 88.9 140
DN100 4 450 192 325 80 108 114.3 185
DN125 5 450 208 325 100 133 141.3 216
DN150 6 450 241 350 125 159 168.3 219


Size NPS A B L D D1 D2
GB      EN
DN15 3/8 129 90 210 15 18 21.3 42.7
DN20 3/4 159 103 230 20 25 26.7 48
DN25 1 159 107 260 25 32 33.4 60
DN32 11/4 230 120 260 32 42 42.2 76
DN40 11/2 230 126 300 40 48 48.3 76
DN50 2 230 177 300 50 57 60.3 114
DN65 21/2 300 186 300 65 76 76.1 140
DN80 3 400 210 300 80 89 88.9 165
DN100 4 400 214 325 100 108 114.3 216
DN125 5 450 220 350 125 133 141.3 219
DN150 6 450 280 490 150 159 168.3  

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