Essential details
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Product Introduction
Metal hose is an indispensable flexible connecting pipe fitting in modern industrial equipment, widely used in petrochemicals, tank sampling, pipeline connection, equipment interfaces and other occasions. Composed of an inner metal bellows, an outer stainless steel braided mesh and connectors at both ends, it has the advantages of corrosion resistance, high pressure resistance, high and low temperature resistance, good sealing performance and excellent flexibility. It can effectively compensate for pipeline displacement, absorb vibration, reduce noise, and facilitate installation.
Main Models, Materials & Specification Details
1. General-Purpose Metal Hose (for sampling systems, instrument connections, etc.)
Attribute | Detailed Description |
Common Models/Series | No unified fixed model, usually described according to the application, such as "Sampling Pipeline Metal Hose" and "Instrument Metal Hose". It is often listed as "Other Accessories" in sampling systems. |
Core Pipe Material | 316 stainless steel (316 SS), 304 stainless steel (304 SS). |
Liner/Core Pipe Material | Smooth PTFE (Polytetrafluoroethylene) or 316 stainless steel bellows. PTFE liner provides excellent chemical inertness and non-stickiness. |
Braided Mesh Material | 304 stainless steel or 316 stainless steel braided mesh, which plays a reinforcing and protective role. |
Hose Size (Inner Diameter) | 1/4" to 1" (about 6mm to 25mm), other sizes can be customized on demand. |
Connection Methods | Various forms such as tube fittings, NPT threads (internal/external threads), and flanges are available. Specific connection types and sizes are "Available in a variety of connection types". |
Pressure & Temperature | The working pressure and temperature range depend on the specific structure (such as whether there is a PTFE liner). It can usually adapt to medium and high pressure and a wide temperature range. |
Typical Applications | Flexible parts connecting cylinders and process pipelines in closed samplers; instrument pressure guiding pipes; flexible connections between equipment. |
2. GYG Series Metal Hose for Storage Tanks
Attribute | Detailed Description |
Product Code/Model | GYG series, for example: GYG65C, GYG80C, GYG100C, GYG125C, GYG150C, GYG200C, GYG250C, GYG300C, GYG350C, GYG400C. |
Nominal Diameter (DN) | 65 mm, 80 mm, 100 mm, 125 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm. |
Nominal Pressure (PN) | 1.6 MPa. |
Flange Material Code | C: Carbon steel flange; S: Stainless steel flange (Example: GYG125C means nominal diameter 125mm, carbon steel flange). |
Hose Length (L) | Determined by the nominal diameter and the required maximum lateral displacement (Y), the length ranges from 700 mm to 3800 mm. See the selection table below for the specific corresponding relationship. |
Structure Composition | 1. Sealing ring; 2. Loose flange; 3. Snap ring; 4. Mesh body (bellows + braided mesh); 5. Fasteners; 6. Welded flange. |
Core Function | Specifically used to connect the internal and external connecting pipes of the tank sampler, compensate for the relative displacement between the tank body and the external pipeline, and ensure the activity requirements of the sampling assembly. |
Typical Applications | In the under-tank sampler, it connects the three connecting pipes between the sampling point inside the tank and the operation box outside the tank. |
Selection Guide
Determine the Application Scenario
- Storage Tank Sampling: Select GYG series metal hose for storage tanks, and determine the length according to the displacement between the tank body and the operation box.
- Sampling System or Instrument Connection: Select general-purpose metal hose, focusing on determining the liner material (PTFE for corrosive media), pressure level and connection interface.
Our Commitment
Hubei Wan'an Environmental Protection & Petrochemical Equipment Co., Ltd. provides a full range of metal hose solutions, from standardized storage tank-specific types to highly customized pipes for sampling instruments. According to your specific medium, pressure, temperature, displacement compensation and connection requirements, we can provide the most suitable material, structure and specification configuration to ensure safety, reliability and long service life.
Welcome to contact us for detailed technical data and exclusive selection plans!
