Dry-Break Coupling
The LDDC (Liquid Dry Disconnect Coupling) is a high-performance, leak-free dry break coupling designed for the safe and efficient transfer of hazardous or valuable liquids.
It is widely used in offshore drilling platforms, chemical and pharmaceutical industries, food material handling, as well as loading/unloading operations for cars, trains, aircraft, and ships.
Its core advantage lies in its automatic sealing mechanism upon disconnection, which eliminates liquid dripping, ensuring operational safety and environmental cleanliness.
- Product Introduction
Product Overview
The LDDC (Liquid Dry Disconnect Coupling) is a high-performance, leak-free dry break coupling designed for the safe and efficient transfer of hazardous or valuable liquids. It is widely used in offshore drilling platforms, chemical and pharmaceutical industries, food material handling, as well as loading/unloading operations for cars, trains, aircraft, and ships. Its core advantage lies in its automatic sealing mechanism upon disconnection, which eliminates liquid dripping, ensuring operational safety and environmental cleanliness.
Technical Specifications
Coupling Standard: Complies with NATO STANAG 3756 international military standard, ensuring high compatibility and reliability.
Material Options:
Stainless Steel (1.4408): High corrosion resistance, suitable for harsh chemical environments.
Aluminium (6061/6082): Lightweight design, easy to handle and install.
Brass (Hpb57-3): Suitable for medium to low pressure and non-corrosive media.
Sealing Gasket: Standard FPM (Fluorocarbon Rubber) and PTFE (Poly tetra fluoroethylene); customizable materials available upon request.
Working Pressure:
Stainless Steel: PN25 (363 psi)
Aluminium: PN10 (145 psi)
Brass: PN16 (232 psi)
End Connection:
Thread Type: BSPP, BSP, NPT
Flange Type: EN 1092, ANSI, TW, TTMA
Size Range: 1" to 8", meeting various pipe diameter requirements.
Core Features & Benefits
Zero Leakage Design: Automatically locks and seals the moment it is disconnected, effectively preventing medium leakage to protect operators and the environment.
Quick Connection/Disconnection: Features a cam-locking structure that allows for tool-free, single-handed operation, significantly improving work efficiency.
High Compatibility: Supports multiple materials and connection standards, adapting to different industries and equipment.
Durable & Reliable: Compact structure, impact-resistant, and high-pressure tolerant, ideal for high-frequency and high-intensity industrial scenarios.
Safe Transfer: Specifically designed for flammable, explosive, toxic, or high-purity liquids, such as fuel, chemicals, pharmaceuticals, and food ingredients.
Application Scenarios
Energy Sector: Fuel/chemical refueling on offshore platforms, oil tanker truck loading/unloading.
Chemical & Pharmaceutical: Closed transfer of high-purity solvents and reaction materials.
Transportation: Aircraft refueling, train/ship fuel supply.
Food Industry: Hygienic transfer of liquid raw materials (e.g., edible oils, dairy products).
Emergency Response: Control and transfer of hazardous material leaks.
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