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Stainless Steel Manual Knife Gate Valve With Rising Stem-DELCO Valve
The DELCO Manual Rising Stem Knife Gate Valve is a uni-directional or bi-directional valve tailored for general industrial use. Its body and seat design ensure a non-clogging shutoff for suspended solids in various industries. Additionally, a wide range of actuators and accessories is available to suit different needs.
Model: Knife Gate Valve
Size Range: 2″ to 80″
Pressure Range: 0.6 to 4.0MPa
Material: Cast Iron, Cast Steel, WCB, Stainless Steel
Manual Guillotine Knife Gate Valve – Rising Stem:
Knife gate valves excel in on-off and isolation tasks within systems containing high levels of suspended solids. Their design particularly suits them for managing challenging substances like slurry, viscous fluids, corrosive liquids, and abrasive materials. Offering minimal pressure drop when fully open, these valves are easy to operate, lightweight, and cost-efficient.
Operating effectively in harsh environments, knife gate valves typically feature a sharp blade for cutting through dense fluids. Their utility shines in wastewater applications, where corrosion poses a significant challenge. Therefore, optimizing the valve design for slurry management and utilizing acid-proof stainless steel for the knife enhances durability against corrosion. Consequently, this reduces the need for frequent maintenance or replacement.
Note: These valves feature hard seals exclusively.
Technical Parameters of Valve Body：
| Size | DN50~2000 (2”~80”) | Nominal Pressure | 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa, 150Lb |
| Temperature | -38℃~1100℃ | Sealing Material | SS or Teflon seal |
| End connection | Wafer or Flange | Flange Drilling | ANSI/ GB/ DIN/ GIS/ NF/ BS |
| Main Materials | Cast Iron, WCB, SS, CF8 | Actuation | Motorized, Pneumatic or Manual |
So more features of gate valves:
1. Light weight: The body is made of high-grade nodular black cast iron, and the weight is about 20%~30% lighter than the traditional gate valve. It is easy to install and maintain.
2. Overall rubber encapsulation: The gate adopts high-quality rubber for the overall inner and outer rubber. European first-class rubber vulcanization technology enables the vulcanized gate to ensure accurate geometric dimensions, and the rubber and ductile cast gate can be firmly connected, which is not easy Good shedding and elastic memory.
3. Flat-bottomed gate seat: The traditional gate valve often deposits in the groove at the bottom of the valve due to foreign objects such as stones, wood, cement, iron filings, sundries, etc. after the pipe is washed with water, which can easily cause water leakage.
The bottom of the elastic seat-sealed gate valve adopts the same flat-bottom design as the water pipe machine, which is not easy to cause debris siltation and makes the fluid flow unimpeded.
4. Precision casting valve body: The valve body adopts precision casting, and the precise geometric dimensions make the inside of the valve body without any fine processing to ensure the sealing of the valve.
5. Small fluid resistance: because the internal medium channel of the gate valve body is straight, the medium does not change its flow direction when flowing through the gate valve, so the fluid resistance is small.
6. The opening and closing torque is small, and the opening and closing is more labor-saving. Because the direction of the gate movement is perpendicular to the direction of the medium flow when the gate valve is opened and closed, the opening and closing of the gate valve is more labor-saving.
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