Note: This gate valve cannot be used for drinking water.
1-1/2 inch (DN40) ss flanged gate valve is a crucial component in industrial fluid control systems, specifically designed for applications in water lines, water pumps, and water tanks. Constructed from durable stainless steel, it ensures resilience against corrosion and wear, making it suitable for diverse environments. The 1.5 inch (40mm) high pressure gate valve features an OS&Y (Outside Screw and Yoke) design, allowing easy identification of its position and enhancing its reliability.
Specification
- Model: ATO-Z41W-DN40
- Connection Type: Flanged Type
- Flanged Port Size: 1-1/2 inch (DN40)
- Working Pressure (Optional): CLASS150/300
- Working Temperature: -425℃
- Valve Body Material: Stainless Steel
- Applicable Media: Water, Chemical, Petroleum, Gas, etc.
Material for Main Parts
| Valve, Cover, Flap |
Valve Stem |
Sealing Surface |
Gasket (Ring) |
Packing |
Operating Temperature |
Applicable Media |
| WCB |
2Cr13 |
13Cr STL Bulk Material PTFE, Nylon |
Enhanced Flexible Graphite 13Cr/Flexible Graphite SFB-2,08 Mild Steel F304, F316 |
Flexible Graphite Enhanced Flexible Graphite SFB1260 SFP1260 PTFE |
≤420℃ |
Water, Steam and Oil Products |
| WC1 |
38CrMoA1 25Cr12MoV |
≤450℃ |
| WC6 |
≤540℃ |
| WC9 |
≤570℃ |
| C5 C12 |
≤540℃ |
| CF8 |
F304 |
≤600℃ |
Nitric Acid, Acetic Acid, Urea |
| CF3 |
F316 |
| CF8M |
F304L |
| CF3M |
F316L |
Size (Unit: mm)

| Working Pressure |
INCH |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
D0 |
| CLASS150LB |
1-1/2" |
40 |
165 |
127 |
98.5 |
73 |
15 |
4-15 |
285 |
180 |
| CLASS300LB |
1-1/2" |
40 |
190 |
156 |
114.5 |
73 |
21 |
4-22 |
290 |
200 |
Tips: What are common issues and failures associated with flanged gate valves?
Common issues and failures associated with flanged gate valves include leakage, which can result from damaged or improperly seated seals, or wear and tear on the valve components. Corrosion is another prevalent problem, particularly in environments with aggressive fluids. Sticking or jamming of the valve gate due to debris or inadequate lubrication may hinder proper operation. Over-tightening of the bolts during installation can lead to distortion of the valve body, affecting its performance. Additionally, the valve stem and actuator may experience wear, potentially causing operational malfunctions. Regular maintenance, proper installation, and adherence to recommended operating conditions are crucial to mitigate these issues and ensure the reliable and efficient functioning of flanged gate valves.