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Angle Pad Coupling is a specialized pipe fitting engineered to connect two pipes at an angled junction, ensuring secure sealing and structural stability in piping systems. Its design integrates special gaskets and steel clamps to prevent leaks and maintain alignment, even in scenarios involving pipe offset or directional changes.
This fitting is particularly valuable in environments where space is constrained or where pipes require directional adjustments. It balances pressure resistance and vibration tolerance, making it a reliable component in both static and dynamic piping setups.
Material: ASTM A536, GRADE 65-45-12, QT450-10 (ductile iron grades for durability and strength).
Threads: Compliant with ASME B1.20.1, ISO 7-1, BS21, BSPT, NPT, and GB 7306 standards for compatibility with global piping systems.
Size Standards: Adheres to ISO6182 and AWWA C606; available in sizes from 1"-24".
Surface Treatment: Options include electrophoretic painting, electroplating, epoxy coating, and hot-dip galvanizing to resist corrosion and extend service life.
The Angle Pad Coupling undergoes rigorous pressure testing to ensure performance under operational conditions. Testing parameters are as follows:
NO. | Size | Pressure | Time to Keep Pressure | Remark |
1 | ≤DN50 | ≥0.5MPa | ≥5s | Air pressure |
2 | >DN50~DN350 | ≥0.5MPa | ≥10s | Air pressure |
3 | >DN350 | 1.5× rated working pressure | 5min | Water pressure |
The sealing performance of Angle Pad Coupling depends on its rubber gaskets, which are tailored to different media and temperature ranges:
Name | Recommended Application Medium | Related Standards | Recommended Temperature Range |
E: EPDM | Water supply, drainage, sewage, normal-temperature air, weak acid, weak alkali | GB5135.11, GB/T 21873 | -30℃~+130℃ (-22°F~+266°F) |
D: NITRILE | Petroleum, vegetable oil, mineral oil | GB5135.11, GB/T 23658 | -20℃~+80℃ (-4°F~+176°F) |
S: SIUCON | Drinking water, high-temperature dry air, high-temperature chemicals | GB/T 28604, GB5135.11 | -40℃~+180℃ (-40°F~+356°F) |
F: FLUORINE | Acid, alkaline solution, hot lubricating oil | HG/T 2181 | -20℃~+180℃ (-4°F~+356°F) |
V: NEOPRENE | Seawater | - | -20℃~+100℃ (-4°F~+212°F) |
The following table outlines key dimensions, pressure ratings, and certifications for Angle Pad Coupling:
Nominal Size (mm/in) | Pipe O.D (mm/in) | Working Pressure (PSV/MPa) | Bolt Size | Dimensions (L mm/in) | Dimensions (H mm/in) | Certifications |
25/1 | 33.7/1.327 | 500/3.45 | 2-M10x45 | 57.5/2.264 | 43.5/1.713 | UL, FM |
32/1-1/4 | 42.4/1.669 | 500/3.45 | 2-M10x45 | 70/2.756 | 44/1.732 | UL, FM |
40/1-1/2 | 48.3/1.900 | 500/3.45 | 2-M10x45 | 73/2.874 | 44/1.732 | UL, FM |
50/2 | 60.3/2.375 | 500/3.45 | 2-M10x55 | 87/3.425 | 44/1.732 | UL, FM |
65/2-1/2 | 73.0/2.875 | 500/3.45 | 2-M10x55 | 100/3.937 | 44/1.732 | UL, FM |
80/3 | 88.9/3.500 | 500/3.45 | 2-M12x60 | 117/4.606 | 45/1.772 | UL, FM |
100/4 | 108.0/4.250 | 500/3.45 | 2-M12x65 | 137/5.393 | 48/1.889 | UL, FM |
125/5 | 133.0/5.250 | 300/2.07 | 2-M12x75 | 162.6/6.401 | 48/1.889 | UL, FM |
150/6 | 159.0/6.250 | 300/2.07 | 2-M12x75 | 189.4/7.456 | 48/1.889 | UL, FM |
200/8 | 219.1/8.625 | 300/2.07 | 2-M16x100 | 253/9.961 | 59/2.323 | UL, FM |
250/10 | 273/10.748 | 300/2.07 | 2-M22x130 | 335/13.189 | 68/2.677 | UL, FM |
300/12 | 323.9/12.752 | 300/2.07 | 2-M22x130 | 380/14.96 | 65/2.559 | UL, FM |
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Angle Pad Coupling is widely utilized across industries due to its adaptability to angled installations and diverse operating conditions:
Fire Protection Systems: Ensures leak-tight connections in complex, space-constrained layouts, critical for maintaining pressure during emergencies.
HVAC Systems: Withstands vibration from air handlers and pumps while preserving alignment, reducing wear on connected components.
Water Supply & Drainage: Compatible with potable water, sewage, and weak chemicals, supported by EPDM gaskets for broad medium tolerance.
Oil & Gas Industry: Handles moderate pressure requirements in pipeline networks, with hot-dip galvanized surfaces resisting corrosion from hydrocarbons.
While Angle Pad Coupling focuses on pipe-to-pipe angled connections, rigid couplings are often used alongside it in mechanical systems. These devices connect two shafts rigidly, ensuring synchronous rotation with no relative movement. Key attributes include:
High Precision: Maintains exact alignment, critical for machinery requiring minimal backlash.
High Torque Transfer: Transmits rotational force without slippage, suitable for heavy-duty applications.
Low Maintenance: Solid construction (typically steel or aluminum) reduces upkeep needs.
Common applications include machine tools, robotics, and printing presses.
Versatility: Compatible with global standards (ISO, AWWA, ASME) for cross-industry use.
Ease of Installation: Bolt-on design reduces assembly time compared to welded angled fittings.
Durability: Ductile iron materials and corrosion-resistant coatings extend service life in harsh environments.
Reliable Sealing: Custom gaskets (EPDM, NITRILE, etc.) adapt to specific media and temperature ranges.
Angle Pad Coupling remains a foundational component in modern piping systems, offering a practical solution for angled connections where safety, efficiency, and longevity are paramount.
