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D2466-24 – Standard Test Method Technical Guide
📐 Scope and Materials
ASTM D2466-24 covers poly(vinyl chloride) (PVC) Schedule 40 pipe fittings for pressurized liquid distribution. Fittings must be manufactured from rigid PVC compounds conforming to ASTM D1784, ensuring consistent quality and performance. Workmanship standards require fittings to be free of defects and suitable for intended service.
Tip: Always verify chemical compatibility of the fluid with PVC materials to prevent degradation or failure. Refer to NSF/ANSI Standard No. 14 for potable water applications.
Socket-type CPVC fittings are now covered under ASTM F438 while transitions and appurtenances are addressed in ASTM F1970.
⚙️ Dimensional Requirements and Testing
Precise dimensions ensure proper joint assembly and pressure integrity. Dimensional verification follows ASTM D2122. Key parameters include socket depth and wall thickness as shown below for common sizes.
| 🟦 Nominal Size (in) | 📐 Socket Depth (in) | 📏 Wall Thickness (in) |
|---|---|---|
| 1/2 | 1.14 | 0.170 |
| 3/4 | 1.20 | 0.188 |
| 1 | 1.32 | 0.200 |
| 1-1/4 | 1.45 | 0.215 |
| 1-1/2 | 1.56 | 0.230 |
| 2 | 1.72 | 0.250 |
Values are representative per ASTM D2466. Consult the full standard for all sizes and detailed figures.
📊 Burst Pressure and Performance
Burst pressure requirements safeguard system safety. Testing is conducted per ASTM D1599. Minimum burst pressures for selected sizes are listed below.
| 📏 Nominal Size (in) | ⚡ Min Burst Pressure (psi) |
|---|---|
| 1/2 | 400 |
| 3/4 | 400 |
| 1 | 400 |
| 1-1/4 | 400 |
| 1-1/2 | 400 |
| 2 | 400 |
Larger sizes may have lower burst pressures per the standard. Fittings are intended for liquids only.
Warning: Do not use compressed air or other gases for testing. Stored energy can cause violent failure. Follow manufacturer procedures for any pneumatic testing.
❓ Frequently Asked Questions
🔍 What is the scope of ASTM D2466?
It specifies PVC Schedule 40 pipe fittings for pressurized liquid systems, covering materials, dimensions, and burst pressure.
💡 What materials are required?
Rigid PVC compounds meeting ASTM D1784 cell classification. NSF/ANSI 14 compliance may apply for potable water.
⚡ What are the burst pressure requirements?
Minimum 400 psi for sizes 1/2 in to 2 in with derated values for larger sizes as detailed in the standard.
📌 Can these fittings be used for compressed air?
No. They are designed exclusively for liquids. Compressed air or gas poses severe safety hazards due to stored energy.