Square Water Control Gates Gate Valve For Flood Control And Wastewater Treatment
Brand Name:
Lanjiang
Model Number:
MZF Series
Place of Origin:
China
MOQ:
1
Payment Terms:
T/T
Product Details
Highlight:
Square Gate Valve For Flood Control
,Gate Valve For Wastewater Treatment
,Flood Control Water Control Gates
Gate Size Range:
300x300 Mm ~ 2400x2400 Mm
Maximum Working Head:
Positive: 10m / Reverse: 5m / Bi-directional: 10m
Nominal/Test Pressure:
Nominal: ≤0.1Mpa / Sealing Test: 0.1Mpa
Sealing Clearance:
≤0.1 Mm (Sealing Seat Thickness >10 Mm)
Product Description
Detailed Specifications & Features
Bi-directional 10m Pressure Adjustable Wedge Sealing MZF Square Gate Valve
The MZF Rising Stem Cast Iron Copper-Inlaid Square Gate Valve is engineered for superior performance in flood control and wastewater treatment applications. This high-efficiency device provides reliable interception and precise water level regulation for water supply, drainage, flood control, and hydropower projects.
Premium Construction & Design
Manufactured from premium Gray Cast Iron (HT250) or Ductile Iron (QT450-10), the valve features a unique outer arc design that ensures uniform stress distribution and exceptional structural rigidity. The sealing surfaces utilize Tin Bronze or NBR materials combined with a high-precision modular wedge mechanism that maintains sealing clearance at ≤ 0.1mm for perfect plane contact sealing.
Technical Specifications
| Specification Category | Details |
|---|---|
| Gate Size Range | 300x300 mm ~ 2400x2400 mm |
| Maximum Working Head | Positive: 10m / Reverse: 5m / Bi-directional: 10m |
| Sealing Leakage Rate | Positive ≤0.7 L/min*m / Reverse ≤1.25 L/min*m |
| Nominal/Test Pressure | Nominal: ≤0.1Mpa / Sealing Test: 0.1Mpa |
| Sealing Clearance | ≤0.1 mm (Sealing seat thickness >10 mm) |
| Environment & Medium | Temperature -20°C ~ 120°C / 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 |
Key Applications
Water Supply and Wastewater Treatment
Designed to handle challenging water conditions with a pH range of 5 to 10, this corrosion-resistant valve is ideal for flow interception and pipeline management in sewage treatment plants and sedimentation tanks.
Water Conservancy and Flood Control
With robust pressure resistance capabilities, both single-directional and bi-directional designs can withstand working water heads up to 10m, ensuring reliable operation during high water level conditions in flood seasons.
Agricultural Irrigation and Hydropower
Compatible with manual, electric, or hydraulic hoists, the valve achieves smooth vertical lifting for precise water flow blocking and level regulation in reservoirs and irrigation canals.
Frequently Asked Questions
What should be done if the sealing performance decreases after long-term operation?
The MZF square gate valve features a specially designed adjustable sealing mechanism (wedge blocks). If wear occurs or water-stopping performance decreases, you can easily restore perfect plane contact and excellent sealing by adjusting the wedge block tightness within the module, eliminating the need for complete gate plate replacement.
Can this square gate valve withstand reverse water flow pressure?
Yes. Under standard single-direction pressure configuration, the gate withstands a 5m reverse working water head. For more demanding conditions, the equipment supports bi-directional pressure configuration, capable of handling up to 10m water head pressure in both directions, meeting complex water flow environment requirements.
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