The Water Inflatable Rubber Dam is a flexible hydraulic structure designed for controlled water retention and discharge in rivers, irrigation systems, reservoirs, and urban waterways.

Unlike pneumatic (air-filled) systems, this type uses water as the inflation medium, allowing adjustable crest height and more precise upstream water level management.

The dam body is fabricated from high-strength synthetic fiber fabric reinforced with vulcanized EPDM or chloroprene rubber layers, ensuring durability, watertight performance, and resistance to aging, UV exposure, and environmental stress.

When filled with water, the dam forms a stable retaining barrier. When drained, it collapses flat against the riverbed, restoring the natural cross-section and enabling unobstructed flood discharge.

Core Advantages of Water Inflatable Rubber Dam

1️⃣ Adjustable Dam Height

The most significant advantage of water inflatable rubber dams is adjustable overflow height.

Operators can regulate the internal water volume to precisely control:

Upstream water level
Irrigation supply
Urban landscape water elevation
Flood discharge flow

This makes the system ideal for projects requiring flexible water management.

2️⃣ Excellent Sealing & Stability

No leakage during impoundment
Stable structure under hydraulic pressure
Large single-span length capability
Internal and external forces independent of dam length

The flexible body distributes stress evenly along the axis, enhancing long-term performance.

3️⃣ Reduced Construction Complexity

Compared to conventional concrete or steel gates:

No lifting towers or heavy mechanical systems
No intermediate piers required
Simplified civil structure
Short installation time (typically 3–15 days)

Material consumption of steel and concrete is significantly reduced.

4️⃣ Seismic & Environmental Adaptability

Flexible structure absorbs vibration energy
Strong resistance to seismic impact
Suitable for ecological river restoration
Allows sediment and debris passage during deflation

Performance Comparison

Feature	Water Inflatable Rubber Dam
Height Adjustment	Fully Adjustable
Temperature Influence	Minimal impact from air temperature
Operation Method	Water filling & drainage
Structural Stability	High
Cold Region Consideration	Internal freezing possible in severe winter
Base Slab Requirement	Wider foundation required

Limitations to Consider

While highly versatile, water-filled rubber dams may require:

Wider base slab construction
Higher initial civil investment
Anti-freezing measures in extremely cold climates

Proper engineering design ensures long-term safe operation.

Technical Specifications

Item	Specification
Dam Type	Water Inflatable Rubber Dam
Inflation Medium	Water
Dam Height	0.5 m – 6.0 m (Customizable)
Single Span Length	Up to 100 m per section
Total Length	Designed According to Project Requirements
Rubber Material	EPDM / Chloroprene Rubber (CR)
Reinforcement Layer	High-Strength Synthetic Fiber Fabric
Structure Type	Pillow Type / Slope Type
Crest Height Control	Adjustable by Water Volume
Anchoring Method	Bolted Anchor System
Control Mode	Manual / Automatic
Installation Time	3 – 15 Days
Design Service Life	20 – 30 Years