Flange gate valve, Z41H 
 Wedge gate valve uses 
 Widely used in petrochemical, power plants and other oil products, steam pipe on the road to connect or disconnect the medium lifting device in the pipeline 

 Wedge Gate Valve Features 
 1, compact structure, reasonable design, the valve rigid, channel flow, flow coefficient 
 2, the sealing surface of stainless steel and alloy long life 
 3, the use of flexible graphite packing, sealing, reliable, easy operation and flexible 
 4, drive mode to manual, pneumatic, electric, gear 
 5, the structure in the form of elastic wedge single gate, single gate rigid wedge double plate type 

 Wedge gate valve performance standards 
 Design specifications: GB / T 12234 
 Structure Length: GB / T 12221 
 Flange: JB / T 79 
 Test and inspection: JB / T 9092 
 Pressure - Temperature: GB / T 9131 
 Product ID: GB / T 12220 
 Flange Gate Valve (Wedge) - Performance specifications 
 Model Nominal pressure 
 (MPa) test pressure temperature (℃) Medium 
 Intensity of water (MPa) seal (water) air (MPa) low-pressure sealing air (MPa) 
 ZAH-16C 
 Z41W-16P (R) 1.6 2.4 1.8 0.6 ≤ 200 Nitric acid 
 Z41W-25P (R) 2.5 3.8 2.8 0.6 ≤ 200 acetic acid 
 Z41W-40P (R) 4.0 6.0 4.4 0.6 ≤ 200 Nitric acid 
 Z41W-60P (R) 6.4 9.6 7.0 0.6 ≤ 200 acetic acid 
 Flange Gate Valve (Wedge) - material of main parts 
 Body / bonnet ZGICr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12M02Ti ZG00Cr17Ni14M02 WCB 
 Part Name ZGICr18Ni9Tit series ZG00Cr18Ni10 series ZG1Cr18Ni12M02Ti series ZG00Cr17Ni14M02 series WCB Series 
 Gate ZGICr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12M02Ti ZG00Cr17Ni14M02 1Cr13 
 Stem 1Cr18Ni9Ti 00Cr18Ni10 1Cr18Ni12M02Ti 00Cr17Ni14M02 1Cr13 
 PTFE braided packing PTFE PTFE woven braid woven graphite PTFE 
 Gasket 304L + PTFE 304L + PTFE 316 + PTFE 316L + PTFE graphite 
 Gland ZGICr18Ni9Ti ZG00Cr18Ni10 ZG1Cr18Ni12M02Ti ZG00Cr17Ni14M02 series WCB 
 Packing compression ring 1Cr18Ni9Ti 00Cr18Ni10 1Cr18Ni12M02Ti 00Cr17Ni14M02 1Cr13 
 Bolt 1Cr17Ni2 1Cr17Ni2 1Cr17Ni2 1Cr17Ni2 35CrMoA 
 Nut 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni9Ti 1Cr18Ni9Ti 45 
 Flange Gate Valve (Wedge)-1.6MPa main connection size 
 Size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 
 L mm 130 150 160 180 200 250 265 280 300 325 350 400 450 500 550 600 650 700 800 
 H mm 175 180 210 210 350 358 373 435 500 614 674 818 1225 1415 1630 1780 2050 2181 2599 
 W mm 180 180 200 200 200 240 240 280 320 360 360 400 450 500 500 600 720 720 720 

 Flange Gate Valve (Wedge)-2.5MPa main connection size 
 Size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 
 L mm 130 150 160 180 200 250 265 280 300 325 350 400 450 500 550 600 650 700 800 
 H mm 175 180 210 210 350 358 373 435 500 614 674 818 1225 1415 1630 1780 2050 2181 2599 
 W mm 180 180 200 200 200 240 240 280 320 360 360 400 450 500 500 600 720 720 720 

 Flange Gate Valve (Wedge)-4.0MPa main connection size 
 Size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 
 L mm 130 150 160 180 200 250 280 310 350 400 450 550 650 750 850 950 
 H mm 175 180 210 210 350 358 373 435 500 614 674 818 1225 1415 1630 1780 
 W mm 180 180 200 200 200 240 240 280 320 360 360 400 450 500 500 600 

 Wedge gate valve flange connection size main-6.4MPa 
 Size DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 
 L mm 170 190 210 230 240 250 280 320 350 400 450 550 650 750 850 950 
 H mm 175 180 210 230 350 359 373 435 500 614 674 818 970 1145 1280 1450 
 W mm 120 120 140 160 200 240 280 320 360 400 400 450 560 640 800 800