product detail
1. Small volume, light weight, compact structure, easy maintenance. 2. The valve plate adopts dual type, in the spring under the elastic moment of quick closing on its own. ~ 3. Because of the quick closing effect, can prevent the backflow medium, eliminate water hammer effect is strong. 4. The body structure of small length, good rigidity, safe and reliable. 5. Completely sealed, water pressure test leak is zero. 6. Easy installation, can be used for horizontal two vertical direction installation. 7. Flange connection size comply with the provisions of GB/T 17241.6-98. 8. Structure length comply with GB /T1 2221 -89, ISO5752-89. Body Disc Stem Rubber gasket Sping Name Code Name Code Name Name Code Working temp Name Cast Z Plated ductile Iron 1 Stainless steel EPDM X3 -46~+121Intemittence-50~+150 Stainless steel Ductile Irol Q Aluminum bronze 2 Neoprene X4 -29~+99Intemittence-35~+113 Carbon steel C ZG1Cr13Ni9TiStainless steel NBR X5 -35~+82Intemittence-23~+93 Stainless steel P CF8MStainless steel 5 Neoprene X7 -23~+150 CF8MStainless steel 7 DN（mm） Nominal diameter 50(2")~700(28") 50(2")~450(18") PN(Nominal pressure) 1.0 1.6 MPaTesting pressure Shell 1.5 2.4 Sealing 1.1 1.76 Suitable temperature Suitable mediums Frash water,sewage,air,steam,food,medicine,oils,acids,etc. DN D D1 D2 L R t weight（kg） mm inch 50 2" 107 65 43.3 43 28.2 19 1.5 65 2.5" 127 80 60.2 46 36.1 20 2.4 80 3" 142 94 66.4 64 43.4 28 3.6 100 4" 162 117 90.8 64 52.8 27 5.7 125 5" 192 145 116.9 70 65.7 30 7.3 150 6" 218 170 144.6 76 78.6 31 9.0 200 8" 273 224 198.2 89 104.4 33 17 250 10" 328 265 233.7 114 127 50 26 300 12" 378 310 283.9 114 148.3 43 42 350 14" 438 360 332.9 127 172.4 45 55 400 16" 489 410 381.0 140 197.4 52 75 450 18 539/555 450 419.9 152 217.8 58 101/107 500 20" 594 505 467.8 152 241 58 111 600 24" 690 624 572.6 178 295.4 73 172 700 28" 800 720 680 229 354 98 219 Products Detailes Process Application