Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
D2464-23 – Standard Test Method Technical Guide
📜 Scope and Material Requirements for PVC Threaded Fittings
ASTM D2464‑23 is the standard specification for threaded Poly(Vinyl Chloride) (PVC) Schedule 80 pipe fittings. This specification, issued under the fixed designation D2464, defines strict requirements for materials, workmanship, dimensions, and burst pressure to ensure consistent quality and performance for pressurized liquid systems. The rigid PVC compounds used in manufacturing must conform to the requirements outlined in Classification D1784. It is important to note that threaded CPVC fittings previously covered under this standard are now exclusively governed by ASTM F437 (see Note 1).
| 🟦 Attribute | 📏 Requirement / Standard | 🎯 Context |
|---|---|---|
| Material Classification | Rigid PVC per D1784 | Chemical & physical property basis |
| Thread Specification | 60° NPT per F1498 | Governing thread dimensions & tolerances |
| Fitting Schedule | Schedule 80 | Standard wall thickness class |
| Dimension Verification | Per Test Method D2122 | Standard method for measuring dimensions |
⚠️ Critical Safety Hazard — Note 2: Pressurized (compressed) air or other compressed gases contain large amounts of stored energy which present serious safety hazards should a system fail. Products under this standard are intended for the distribution of pressurized liquids only. Consult with specific product/component manufacturers for their specific testing procedures prior to any pneumatic testing.
⚙️ Dimensional Standards and Burst Pressure Performance
Compliance with the dimensional requirements of D2464 involves strict adherence to the tolerances specified in F1498 for threads and D2122 for overall fitting dimensions. The threaded joints must provide a tight seal and structural integrity. The performance qualification is centered on burst pressure, which is evaluated using the short-term hydraulic pressure method described in Test Method D1599. The table below outlines the minimum burst pressure requirements for common nominal sizes covered by this specification.
| 🔩 Nominal Pipe Size (in.) | ⚡ Min. Burst Pressure (psi) | 📐 Thread Standard |
|---|---|---|
| 1/2 | 1000 | NPT per F1498 |
| 3/4 | 820 | |
| 1 | 630 | |
| 1 1/2 | 440 | |
| 2 | 350 | |
| 4 | 260 |
💡 Testing & Compliance Note: The values stated in inch-pound units are regarded as the standard (Section 1.4). Proper conditioning of test specimens in accordance with Practice D618 is required before conducting burst tests outlined in Section 8. The user of this standard is responsible for establishing appropriate safety, health, and environmental practices.
📋 Certification, Marking, and International Standards
Fittings meeting ASTM D2464 may also be certified to meet NSF Standard No. 14 for plastic piping components or NSF Standard No. 61 for drinking water system components, depending on the specific application. Marking for shipment must comply with applicable Federal (Fed. Std. No. 123) and Military (MIL-STD-129) marking standards. The standard was developed in accordance with internationally recognized principles on standardization established by the World Trade Organization Technical Barriers to Trade (TBT) Committee, as stated in Section 1.6.
❓ Frequently Asked Questions
🔍 What is the primary scope of ASTM D2464-23?
This specification covers poly(vinyl chloride) (PVC) threaded Schedule 80 pipe fittings intended for the distribution of pressurized liquids. It includes specific requirements for materials, workmanship, dimensions, and burst pressure.
💡 Can these fittings be used with compressed air or other gases?
No. The standard explicitly states in Section 1.2 and Note 2 that the products are intended for pressurized liquids only. Compressed gases contain large amounts of stored energy, presenting serious safety hazards. Many manufacturers do not allow pneumatic testing of their products.
⚡ Where are threaded CPVC fittings now covered?
Threaded CPVC Schedule 80 pipe fittings, formerly included in D2464, are now covered under their own standard, ASTM F437, as noted in Note 1 of the specification.
📌 Which thread standard is referenced by D2464?
The standard specifies that threads must conform to ASTM F1498, which governs 60° taper pipe threads (NPT) for thermoplastic pipe and fittings. Dimensions are verified using Test Method D2122.