· Certificate: FM/UL/3C/CE，etc.
· Standard: ANSI/UL 213C
· Housing Material: Ductile iron conforming to ASTM A-536, Grade 65-45-12.
· Bolt & Nut: Carbon steel
· Gasket: EPDM, nitrile, silicone rubber, etc.
· Rated pressure: 300~500PSI
· Surface: Hot dip galvanized/electrophoretic/epoxy powder painting
· Color: Variable colors for choice
This rigid coupling allows for more accurate positioning of the tube end, forming a fixed tube end separation, which should be considered in the design and installation.
| SIZE | DIMENSION | BOLTS SIZE | ||||||
| mm | X-mm | Y-mm | Z-mm | X-inch | Y-inch | Z-inch | MODEL.No. | inch |
| 33 | 57 | 90 | 45 | 2.25 | 3.55 | 1.77 | M10X55 | 3/8X2 1/8 |
| 42 | 66 | 105 | 46 | 2.60 | 4.14 | 1.81 | M10X55 | 3/8X2 1/8 |
| 48 | 72 | 109 | 45 | 2.84 | 4.29 | 1.77 | M10X55 | 3/8X2 1/8 |
| 60 | 86 | 125 | 45 | 3.39 | 4.93 | 1.77 | M10X55 | 3/8X2 1/8 |
| 73 | 98 | 140 | 49 | 3.86 | 5.52 | 1.93 | M10X60 | 3/8X2 3/8 |
| 76 | 104 | 144 | 49 | 4.10 | 5.67 | 1.93 | M10X60 | 3/8X2 3/8 |
| 89 | 115 | 159 | 48 | 4.53 | 6.26 | 1.89 | M10X60 | 3/8X2 3/8 |
| 114 | 142 | 193 | 50 | 5.59 | 7.60 | 1.97 | M12X70 | 1/2X2 3/4 |
| 140 | 170 | 221 | 50 | 6.70 | 8.71 | 1.97 | M12X75 | 1/2X3 |
| 141 | 170 | 222 | 50 | 6.70 | 8.75 | 1.97 | M12X75 | 1/2X3 |
| 165 | 197 | 253 | 51 | 7.76 | 9.97 | 2.01 | M12X75 | 1/2X3 |
| 168 | 199 | 257 | 52 | 7.84 | 10.13 | 2.05 | M12X75 | 1/2X3 |
| 216 | 252 | 321 | 60 | 9.93 | 12.65 | 2.36 | M16X100 | 5/8X4 |
| 219 | 255 | 324 | 60 | 10.05 | 12.77 | 2.36 | M16X90 | 5/8X3 1/2 |
| 273 | 313 | 395 | 63 | 12.33 | 15.56 | 2.48 | M20X115 | 3/4X4 1/2 |
| 325 | 368 | 445 | 65 | 14.50 | 17.53 | 2.56 | M20X110 | 3/4X4 3/8 |
An Angle Pad Rigid Coupling is a specially designed grooved pipe coupling that features angled pads to provide additional stability, anti-rotation support, and rigid connection between grooved-end pipes. Unlike standard rigid couplings, the angle pad design allows for increased surface contact, minimizing pipe vibration and reducing mechanical stress in high-pressure or high-vibration piping systems.
Material: Ductile Iron ASTM A536
Coating: Red epoxy or hot-dip galvanized
Working Pressure: Up to 500 PSI
Temperature Range: -30°C to 110°C
Sealing Gasket: EPDM / NBR for water, oil, or gas
Bolt & Nut: Carbon steel or stainless steel, zinc plated
Available Sizes: 1" to 12", custom sizes on request
Standards Compliance: UL Listed, FM Approved, ISO 9001, CE Marked
| Feature | Benefit |
|---|---|
| Angled Pad Design | Enhances grip on pipe surface, reduces slippage |
| Rigid Structure | Prevents axial movement and rotation under pressure |
| Quick Installation | No welding, threading, or flanging required |
| High Strength | Suitable for high-pressure industrial systems |
| Compatible | Works with standard grooved-end steel or ductile iron pipes |
| Reduced Downtime | Maintenance-friendly design for easy disassembly |
Angle Pad Rigid Couplings are widely used in critical pipeline systems where mechanical stability, zero-flex connections, and anti-vibration performance are essential.
Typical application sectors include:
Fire protection systems (sprinkler, riser lines)
Industrial process pipelines (chemical, petrochemical)
Water supply and wastewater treatment systems
HVAC and mechanical systems
Mining and metallurgy pipelines
Oil & gas piping infrastructure
| Aspect | Angle Pad Rigid Coupling | Standard Rigid Coupling |
|---|---|---|
| Pipe Grip | Enhanced via angled pads | Regular grip |
| Anti-Vibration | Strong anti-vibration performance | Moderate |
| Application Scope | High-vibration or unstable installations | General-purpose |
| Price | Slightly higher | Cost-effective |
Our angle pad rigid couplings are compatible with:
Ductile iron pipes
Steel pipes (black or galvanized)
Stainless steel grooved pipes
HDPE pipes with grooved adapters
Popular sizes include:
1 inch, 2 inch, 2.5 inch, 3 inch, 4 inch, 6 inch, 8 inch, 10 inch, 12 inch
(Custom transitions like 4" × 3" available on request)
Q: Is an angle pad rigid coupling interchangeable with standard grooved couplings?
A: Yes, as long as the groove profile and pipe OD match, but the angle pad version offers higher anti-vibration performance.
Q: Are your couplings FM approved?
A: Yes. We offer FM/UL certified models suitable for fire protection systems.
Q: Can I request custom sizes or coatings?
A: Absolutely. We support OEM/ODM for custom dimensions, colors, and pressure ratings.
Q: Do you export globally?
A: Yes, we export to over 80 countries and support both container and mixed-batch shipping.
CNG (Hebei DIKAI Piping Products Co., Ltd.) has been a pioneer in grooved piping systems since 2002, with:
50,000+ tons of annual production capacity
110,000+ m² of manufacturing space
3 DISA automatic molding lines
Advanced testing & epoxy coating lines
ISO, UL/FM/CE certified quality systems
Exports to North America, Middle East, Europe, and Southeast Asia
We support OEM & ODM for global distributors, engineering contractors, and project integrators.
Looking for high-performance angle pad rigid couplings for your pipeline systems?
Request a quote or get a free technical consultation with our engineers today.
[Request a Quote] | [Talk to Engineer] | [Download Catalog]
