Description： Items Name PVC Single Union Bottom Valve Material PVC-u/UPVC Size DN15-50 Color High quality dark gray; acording to customer request connection Socket; cement Pressure Medium Pressure, PN10, PN16 Temperature of Media: Medium Temperature Standard DIN Certification ISO14001,ISO9001,SGS,CE, NSF Joints Solvent Welding Joints Media Water/liquid （DIN）VALVE Dimension (mm) Working Pressure （㎏/C㎡）  Minimum Open  Pressure （㎏/C㎡）  Size DN(De) D d0 d1 d2 T L 15(20) 47.00  27.90  20.30  19.96  16.50  113.00  10 0.15～0.3 20(25) 53.90  32.50  25.30  24.95  19.00  132.40  10 0.15～0.3 25(32) 67.00  40.30  32.30  31.90  22.50  145.70  10 0.15～0.3 32(40) 78.50  49.30  40.35  39.90  26.50  177.40  10 0.15～0.3 40(50) 93.00  61.60  50.35  49.90  31.50  201.60  10 0.15～0.3 50(63) 110.60  74.00  63.40  62.90  36.70  215.80  10 0.15～0.3   MARTERIAL  TABLE No. Parte Quantity Material 01 Mesh Enclosure 1 PVC-U/PVC-C 02 Washer 1 PVC-U/PVC-C 03 Rubber  ring  1 EPDM/FPM 04 Located  ring 1 PVC-U/PVC-C 05 Ball 1 PVC-U/PVC-C 06 Body 1 PVC-U/PVC-C   Packing Details No Description Size Pcs/ctn Weight   (g/pcs) Length  (cm) Width  (cm) Height (cm) 1 Single union check valve DN15 224 95.16  37 34 33 2 DN20 196 191.14  40 40 40 3 DN25 90 261.49  43 34 36 4 DN32 72 404.36  51 49 28 5 DN40 27 655.97  43.5 31 30 6 DN50 18 1023.80  37 34 33 7 DN65 18 1647.36  40 40 40 8 DN80 8 2453.88  30.5 30.5 45.5 9 DN100 4 3819.53  36 36 26   Pipe size details of ASTM D1785/ASTM F441 Nominal pipe size Outsize diamater Norminal wall thickness SCH40 SCH80 DN15 1/2" 21.34  2.77  3.73  DN20 3/4" 26.67  2.87  3.91  DN25 1" 33.40  3.38  4.55  DN32 1-1/4" 42.16  3.56  4.85  DN40 1-1/2" 48.26  3.68  5.08  DN50 2" 60.32  3.91  5.54  DN65 2-1/2" 73.02  5.16  7.01  DN80 3" 88.90  5.49  7.62  DN100 4" 114.30  6.02  8.56  DN125 5" 141.30  6.55  9.52  DN150 6" 168.28  7.11  10.97  DN200 8" 219.08  8.18  12.70  DN250 10" 273.05  9.27  15.06  DN300 12" 323.85  10.31  17.45  DN350 14" 355.60  11.10  19.05  DN400 16" 406.40  12.70  21.41  Specifications Sale DN15 to DN50 PVC Bottom Valve Minimum pressure drop, For vertical instrallation Easy to service Anti-block Applicable Places for PVC-U Pipes and fittings: 1. Water Supply Works; 2. Real Estate Construction ; 3. Well Drilling Works; 4. Chemical Factories;