NPT Forged Threaded Reducing Insert — Class 3000, 316/316L Stainless Steel
Forged Class 3000 NPT threaded reducing insert with external male NPT threads and reduced internal female NPT threads. Machined from 316/316L stainless steel forgings per ASME B16.11 across 1/2" × 1/4" to 2" × 1-1/2".
Material options | 316 / 316L |
|---|---|
Connection | External Male NPT × Reduced Internal Female NPT (Reducing Insert) |
Pressure class | Class 3000 |
Nominal size range | 1/2" × 1/4" to 2" × 1-1/2" |
Construction | Forged 316/316L stainless steel per ASME B16.11 (Class 3000) |
Size
Product overview
Construction, Pressure Class & Material Grades
Designed with External Male NPT × Reduced Internal Female NPT (Reducing Insert) geometry (Forged 316/316L stainless steel per ASME B16.11 (Class 3000)), this threaded stainless steel fitting joins mating tapered NPT pipe threads along metal-to-metal thread flanks. Machined from forged stainless steel across Class 3000 configurations in 316 / 316L stainless steel.
Series Size Coverage & Thread Make-Up
Nominal pipe thread sizes span 1/2" × 1/4" to 2" × 1-1/2" across the series; available size options and envelope dimensions vary by stainless steel grade. Verify mating NPT thread specifications and consult the dimensional table for the selected size row before ordering.
Technical specifications
Dimensional Reference · Class 3000 · 316/316L Stainless Steel (1/2" x 1/4"–2" x 1-1/2")
Class 3000 · 316/316L stainless steel · 1/2" × 1/4" to 2" × 1-1/2"
Units: inches
| Specification reference | Size | Diameter C | Diameter D | A (IN) | B (IN) | C (IN) | D (IN) |
|---|---|---|---|---|---|---|---|
| CH-F100-001 | 1/2" x 1/4" | 0.840" | 0.560" | 7/16" | 13/16" | 7/8" | 5/8" |
| CH-F100-002 | 1/2" x 3/8" | 0.841" | 0.693" | 7/16" | 13/16" | 1-1/16" | 5/8" |
| CH-F100-003 | 3/4" x 1/4" | 1.050" | 0.560" | - | - | - | - |
| CH-F100-004 | 3/4" x 1/2" | 1.050" | 0.859" | 1/2" | 7/8" | 1-1/4" | 11/16" |
| CH-F100-005 | 1" x 1/4" | 1.315" | 0.560" | - | - | - | - |
| CH-F100-006 | 1" x 3/8" | 1.315" | 0.693" | - | - | - | - |
| CH-F100-007 | 1" x 1/2" | 1.315" | 0.859" | - | - | - | - |
| CH-F100-008 | 1" x 3/4" | 1.315" | 1.071" | 9/16" | 15/16" | 1-1/2" | 3/4" |
| CH-F100-009 | 1-1/4" x 1/4" | 1.660" | 0.560" | - | - | - | - |
| CH-F100-010 | 1-1/4" x 1/2" | 1.660" | 0.859" | - | - | - | - |
| CH-F100-011 | 1-1/4" x 3/4" | 1.660" | 1.071" | - | - | - | - |
| CH-F100-012 | 1-1/4" x 1" | 1.660" | 1.335" | 5/8" | 1" | 1-13/16" | 13/16" |
| CH-F100-013 | 1-1/2" x 1/4" | 1.900" | 0.560" | - | - | - | - |
| CH-F100-014 | 1-1/2" x 3/8" | 1.900" | 0.693" | - | - | - | - |
| CH-F100-015 | 1-1/2" x 1/2" | 1.900" | 0.859" | - | - | - | - |
| CH-F100-016 | 1-1/2" x 3/4" | 1.900" | 1.071" | - | - | - | - |
| CH-F100-017 | 1-1/2" x 1" | 1.900" | 1.335" | - | - | - | - |
| CH-F100-018 | 1-1/2" x 1-1/4" | 1.900" | 1.682" | 11/16" | 1-1/8" | 2-1/4" | 7/8" |
| CH-F100-019 | 2" x 1/2" | 2.375" | 0.859" | - | - | - | - |
| CH-F100-020 | 2" x 3/4" | 2.375" | 1.071" | - | - | - | - |
| CH-F100-021 | 2" x 1" | 2.375" | 1.335" | - | - | - | - |
| CH-F100-022 | 2" x 1-1/4" | 2.375" | 1.682" | - | - | - | - |
| CH-F100-023 | 2" x 1-1/2" | 2.375" | 1.922" | 3/4" | 1-1/4" | 2-1/2" | 1" |
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