Nanjing Lanjiang Water Treatment Equipment Co., Ltd
| Sealing seat thickness | > 10 mm |
| Opening speed | 0.2 -1.5 m/min |
| Sealing-surface clearance | < 0.1 mm |
| Operating temperature | −20°C to 120°C |
| Delivery Time | 30 |
| Allowable leakage | ≤ 0.7 L/(min*m) forward, ≤ 1.25 L/(min*m) reverse |
| Nominal pressure | ≤ 0.1 MPa |
| Payment Terms | T/T |
| Place of Origin | China |
| Brand Name | Lanjiang |
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Product Specification
| Sealing seat thickness | > 10 mm | Opening speed | 0.2 -1.5 m/min |
| Sealing-surface clearance | < 0.1 mm | Operating temperature | −20°C to 120°C |
| Delivery Time | 30 | Allowable leakage | ≤ 0.7 L/(min*m) forward, ≤ 1.25 L/(min*m) reverse |
| Nominal pressure | ≤ 0.1 MPa | Payment Terms | T/T |
| Place of Origin | China | Brand Name | Lanjiang |
| High Light | Cast Iron Sluice Gate ，Bronze Seal Water Control Gate ，Outward-Curved Flood Control Gate | ||
The cast-iron sluice gate with bronze sealing faces is engineered for water-supply and drainage systems, flood-control projects, irrigation works, hydraulic engineering, and hydropower applications. This robust solution effectively shuts off, releases, or regulates water flow while controlling water levels with precision.
Available in multiple configurations to suit diverse operational requirements:
Featuring an innovative outward-curved structural design, this gate ensures optimal load-bearing distribution and uniform force application. Manufactured from premium materials including high-quality grey cast iron, ductile iron, or stainless steel, with sealing surfaces fitted with bronze strips or rubber seals. Precision machining and matched lapping guarantee tight, face-to-face contact for reliable watertight performance.
For long-term operational efficiency, the sealing performance can be restored by adjusting the wedge devices if performance declines after extended use.
The sluice gate comprises a gate frame, gate leaf, guide rails, sealing strips, operating stem, lifting nut or lifting lug, and adjustable sealing mechanism. Both gate frame and leaf are manufactured from grey cast iron or ductile iron, with guide rails symmetrically arranged and connected using stainless-steel bolts and locating pins.
For small- to medium-sized gates, guide rails may be integrally cast with the gate frame. The guide-rail length typically measures approximately one-half to one-third of the gate's fully open height, delivering:
Watertight sealing is achieved through adjustable wedge devices, with sealing surfaces precision-machined from copper alloy or rubber for reliable performance. Installation options include embedded steel plates or anchor bolts, ensuring straightforward installation, commissioning, operation, and maintenance with extended service life.
The sluice gate operates in conjunction with a hoist system, where the gate serves as the flow-control component and the hoist provides the necessary opening/closing force. Drive systems include manual, electric, pneumatic, or hydraulic operation, engaging gears, worm gears, worm shafts, and transmission components to rotate the drive nut or operating stem.
This mechanism produces vertical movement of the gate stem and leaf, enabling precise control for:
| Parameter | Specification |
|---|---|
| Sealing-surface clearance | Fitting clearance: < 0.1 mm Sealing seat thickness: > 10 mm |
| Allowable leakage per metre | Forward-pressure: ≤ 0.7 L/(min*m) Reverse-pressure: ≤ 1.25 L/(min*m) |
| Pressure rating | Nominal pressure: ≤ 0.1 MPa Sealing test pressure: 0.1 MPa |
| Operating conditions | Temperature: -20°C to 120°C Humidity: ≤ 95% pH range: 5-10 |
| Maximum operating head | Unidirectional: Forward 10 m, Reverse 5 m Bidirectional: 10 m both directions |
| Opening/closing speed | 0.2 - 1.5 m/min |
| Minimum installation clearances | Side wall: > 300 mm Tank bottom: 150-250 mm |
MZF Rising-Stem Cast-Iron Square Sluice Gate with Bronze Sealing Faces:
MZY Rising-Stem Cast-Iron Circular Sluice Gate with Bronze Sealing Faces:
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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