Nanjing Lanjiang Water Treatment Equipment Co., Ltd
| Maximum Working Head | Positive: 10m / Reverse: 5m / Bi-directional: 10m |
| Max Working Head | Positive: 10m / Reverse: 5m / Bi-directional: 10m |
| Payment Terms | T/T |
| Gate Size Range | 300x300 mm ~ 2400x2400 mm |
| Nominal Pressure | ≤0.1 MPa |
| Sealing Test Pressure | 0.1 MPa |
| Opening/Closing Speed | 0.2 m/min ~ 1.5 m/min |
| Sealing Clearance | ≤0.1 mm |
| Nominal/Test Pressure | Nominal: ≤0.1Mpa / Sealing Test: 0.1Mpa |
| Model Number | MZF Series |
| Brand Name | Lanjiang |
| Place of Origin | China |
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Product Specification
| Maximum Working Head | Positive: 10m / Reverse: 5m / Bi-directional: 10m | Max Working Head | Positive: 10m / Reverse: 5m / Bi-directional: 10m |
| Payment Terms | T/T | Gate Size Range | 300x300 mm ~ 2400x2400 mm |
| Nominal Pressure | ≤0.1 MPa | Sealing Test Pressure | 0.1 MPa |
| Opening/Closing Speed | 0.2 m/min ~ 1.5 m/min | Sealing Clearance | ≤0.1 mm |
| Nominal/Test Pressure | Nominal: ≤0.1Mpa / Sealing Test: 0.1Mpa | Model Number | MZF Series |
| Brand Name | Lanjiang | Place of Origin | China |
| High Light | Square Gate Valve For Flood Control ，Gate Valve For Wastewater Treatment ，Flood Control Water Control Gates | ||
The MZF Rising Stem Cast Iron Copper-Inlaid Square Gate Valve is a highly efficient interception and water level regulation device specifically designed for water supply, drainage, flood control, and hydropower projects. The main body is constructed of premium Gray Cast Iron (HT250) or Ductile Iron (QT450-10), featuring a unique outer arc design that ensures uniform stress distribution and exceptionally high structural rigidity.
Its core advantage lies in the use of Tin Bronze or NBR for the sealing surfaces, combined with a high-precision modular wedge mechanism that strictly controls the sealing clearance to ≤ 0.1mm, achieving a perfect plane contact seal. Furthermore, if the sealing performance degrades after long-term use, operators can easily restore it by adjusting the wedge blocks within the module. With a guide rail length reaching 1/2 to 1/3 of the full opening height, it offers strong pressure and corrosion resistance, making it a reliable choice for water affairs and large-scale water conservancy projects.
| Category | Specifications |
|---|---|
| Gate Size Range | 300*300 mm ~ 2400*2400 mm |
| Max Working Head | Positive: 10 m / Reverse: 5 m / Bi-directional: 10 m |
| Sealing Leakage Rate | Positive ≤ 0.7 L/min·m / Reverse ≤ 1.25 L/min·m |
| Nominal / Test Pressure | Nominal: ≤ 0.1 MPa / Sealing Test: 0.1 MPa |
| Sealing Clearance | ≤ 0.1 mm (Sealing seat thickness > 10 mm) |
| Environment & Medium | Temp −20 °C ~ 120 °C / Medium: Water & Sewage (pH 5~10) |
| Main Body Material | Gray Iron (HT250) / Ductile Iron (QT450-10) / Stainless Steel |
| Seal & Wedge Material | Tin Bronze (ZCuSn5PbZn5) or NBR (Nitrile Rubber) |
| Opening / Closing Speed | 0.2 m/min ~ 1.5 m/min |
A: The MZF square gate valve utilizes a specially designed adjustable sealing mechanism (wedge blocks). In the event of wear or a decrease in water-stopping performance, there is no need to replace the entire gate plate. You can easily restore the perfect plane contact and excellent sealing state simply by adjusting the tightness of the wedge blocks within the module.
A: Yes. Under the standard single-direction pressure configuration, the gate can withstand a 5 m reverse working water head. If your operating conditions have stricter requirements, the equipment also supports a bi-directional pressure configuration, capable of withstanding up to 10 m of water head pressure in both positive and reverse directions, fully meeting the needs of complex water flow environments.
Company Details
Business Type:
Manufacturer
Year Established:
2001
Total Annual:
40000000-70000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Nanjing Lanjiang is a professional manufacturer integrating the design, research and development, production, and sales of wastewater treatment equipment. The company is located at No.18 Xinyu Road, Hengliang Street, Liuhe District, in the northern suburbs of Nanjing (adjacent to the Ningtong Expres... Nanjing Lanjiang is a professional manufacturer integrating the design, research and development, production, and sales of wastewater treatment equipment. The company is located at No.18 Xinyu Road, Hengliang Street, Liuhe District, in the northern suburbs of Nanjing (adjacent to the Ningtong Expres...
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