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FRP PIPE FITTINGS, SPECIAL-SHAPED PARTS,PROFILES
Fiberglass elbows are key pipe fittings used in fiberglass piping systems to change the direction of pipelines. Their performance and reliability directly affect the smoothness and safety of the entire piping system.
Products Description
Fiberglass elbows are key pipe fittings used in fiberglass piping systems to change the direction of pipelines. Their performance and reliability directly affect the smoothness and safety of the entire piping system.
I. Main Functions:
1. Changing Flow Direction: Enables the piping system to bypass obstacles and adapt to complex layouts and terrains.
2. Reducing Flow Resistance: Compared to using right-angle tees, elbows with appropriate angles significantly reduce fluid resistance, energy loss, and erosion wear.
3. Absorbing Thermal Expansion and Contraction: In systems with large temperature variations, elbows can absorb some of the thermal stress in the pipeline through their own elastic deformation.
II. Key Parameters and Specifications
1. Bending Angle: The most common standard angles are 45° and 90°. Other angles, such as 11.25°, 22.5°, and 60°, can also be customized according to project needs.
2. Bending Radius: This is a key parameter measuring the degree of bending of the elbow, usually divided into: Long radius elbows: Bending radius R = 1.5D (D is the nominal diameter of the pipe). This is the most commonly used type, with low flow resistance and minimal wear.
Short radius elbow: Bending radius R = 1.0D. Used in situations where installation space is limited, but with higher flow resistance and wear.
D represents the nominal diameter of the pipe. For example, for a DN200 pipe, the bending radius of the long radius elbow is R = 1.5 * 200 = 300mm.
3. Pressure Rating: Matches the pipe pressure, commonly PN0.6, PN1.0, PN1.6, PN2.5 MPa, etc.
4. Connection Method: Socket joint: The most common type. Sockets are made at both ends of the elbow, and the straight pipe is inserted and bonded using a special adhesive, providing good sealing.
Flange connection: Flanges are attached to both ends of the elbow (wound or bonded integrally), and connected to the pipe or equipment by bolts, facilitating disassembly.
Butt joint: The elbow is butted with the straight pipe, and then reinforced externally with multiple layers of fiberglass and resin to form a single unit.
III. Main Application Areas
1. Chemical Pipelines: Pipeline systems for transporting various corrosive chemical media.
2. Power Plant Desulfurization Systems: Inlet and outlet flues of absorption towers, slurry circulation pipelines.
3. Municipal Water Supply and Drainage: Water supply networks, pressurized sewage pipelines.
4. Marine Engineering: Seawater transport pipelines, ship pipelines.
5. Mining Transportation: Slurry and tailings transport pipelines.
Summary
Fiberglass elbows are the "joints" that enable spatial layout in fiberglass pipeline systems. Their successful application depends on:
Appropriate selection (angle, radius, pressure rating).
Appropriate manufacturing process (winding is superior to hand lay-up).
Correct installation and support.
Fully considering the fluid dynamics characteristics and mechanical support requirements is essential to ensure the flexibility and durability of this "joint," guaranteeing the long-term stability of the entire pipeline system.
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Talk to our experts, we can help you meet your requirements and provide assistance for your next project.
