Main Features 1. The seal is designed with dustproof ring plus three "O"-seal ring, reliable sealing, on-line replaceable. 2. Both gate and aluminum bronze bearing are in in aid design good self lubrication, high strength and can have the aluminum bronze bearing replaced without need to replace the gate integrally, after a long time use. 3. Rubber wrapped gate anti-corrosion, good tightness. 4. Advanced surface treatment, coated with non-toxic epoxy resign static powder, anti-corrosion, pollution-free, can be used drinking water pipeline. 5. The body is designed without gate slot, the smooth passage will not get impurities filling up , more applicable for sewage working condition. 6. The integral seal works raliably. For the high pressure seal, leaving zero leakage under1.5 times nominal pressure and ,for the low pressure one ,under 0.02Mpa. Features Light Weight; No - grooved body cavity; Wedged rubber - packed wholly Close tolerance cast valve body; Three O-ring Beneficial to drinking Applicable Standards American Standard Design and manufacture:DIN3352 F4/F5 Face to face DIN3202/ISO5752 Flange and drilling To SME/ANSI B16.42-1998 Technic Criterion Nominal pressure: 1.0~2.5MPa Nominal diameter: DN40-1200mm Applicable medium: Water, sewage, oil, gas etc. Applicable temperature: 鈮?120 degree centigrade Main material of valve: Ductile iron, iron Type Standard Specification Size Pressure Resilient Seated Gate valveBSBS5163 Type ADN40-DN900PN10/16/25 BS5163 Type BDN50-DN300PN10/16 BS1218DN40-DN400PN10/16 DINDIN3352-F4DN40-DN900PN10/16 DIN3352-F5DN40-DN900PN10/16 AWWAAWWAC515DN50-DN600125/150LBS AWWAC509DN50-DN300125/150LBS TaiWanTaiWan StandardDN50-DN6007.5/10K KoreanKSB 2334DN50-DN6005/10/16K SABSSABS 664/665DN40-DN600PN10/16 SABS669DN50-DN315PN10/16 ISOISO2531DN50-DN300PN10/16 Metal Seated Gate valveBSBS5163 Type ADN40-DN600PN10/16 BS5163 Type BDN50-DN300PN10/16 BS3464DN40-DN300PN10/16 DINDIN3352-F4DN40-DN400PN10/16 DIN3352-F5DN40-DN400PN10/16 AWWAAWWA C500DN40-DN600125/150LBS SABSSABS 664/665DN40-DN600PN10/16 Swing TypeBSBS5153DN40-DN400PN10/16 Check ValveAWWAAWWAC508DN40-DN400125/150LBS DINDIN3202 F6DN40-DN400PN10/16 DIN3202 F1DN15-DN300PN10/16 Ball TypeBSBS5153DN40-DN300PN10/16 Check ValveDINDIN3202 F6DN40-DN300PN10/16 Butterfly ValveBSBS5155DN40-DN1200PN10/16 Globe ValveBSBS5152DN10-300PN10/16 DINDIN3202 F1DN10-300PN10/16 DIN3356DN10-300PN10/16 ANSIMSS-SP-85DN10-300125LBS JISMSS-SP-85DN10-300JIS10K Y- strainerENEN1074DN10-DN450PN10/16 BSBS2080DN10-DN450PN10/16 DINDIN3202 F1DN10-DN450PN10/16 Air ValveENEN1074 SingleDN50-DN200PN10/16 EN1074 DoulbeDN40-DN150PN10/16 EN1074 ThreadDN25-DN50PN10/16 Foot ValveENEN1074-5DN50-DN300PN10/16 Fire HydrantBSBS750DN65-DN80PN10/16China Gate Valve website:http://www.jl-valves.com/gate-valve/