Malleable iron 90° reducing elbow
·Standard: ANSI/ASME B16.3
UL/FM
·Material: Malleable iron ASTM A197
·Thread: NPT
·W. pressure: Class 150, 300 psi (-29°C to 66°C)
Class 300, 1000 / 1500 / 2000 psi
(-29°C to 66°C)
·Surface: Black iron / hot dip galvanized
·Size Range: 1/2″ x 3/8″—4″ x 3″ (Class 150)
1/2″x 3/8″ —1-1/4″ x 1/2″ (Class 300)
description
Malleable iron 90° reducing elbow, pressure and corrosion resistant, suitable for various pipelines, easy to install, with excellent performance.
Specification
Available size
SIZE | A | B | ||
INCH | DN | MM | MM | MM |
1/2″ x 3/8″ | 15 x 10 | 21.3 x 17.1 | 26.4 | 26.2 |
3/4″ x 3/8″ | 20 x 10 | 26.7 x 17.1 | 28.5 | 28.7 |
3/4″ x 1/2″ | 20 x 15 | 26.7 x 21.3 | 30.5 | 31 |
1″ x 1/4″ | 25 x 8 | 33.4 x 13.7 | 27 | 31 |
1″ x 3/8″ | 25 x 10 | 33.4 x 17.1 | 30 | 32.3 |
1″ x 1/2″ | 25 x 15 | 33.4 x 21.3 | 32 | 35.5 |
1″ x 3/4″ | 25 x 20 | 33.4 x 26.7 | 34.8 | 36.8 |
1-1/4″ x 3/8″ | 32 x 10 | 42.2 x 17.1 | 32 | 36.5 |
1-1/4″ x 1/2″ | 32 x 15 | 42.2 x 21.3 | 34 | 38.9 |
1-1/4″ x 3/4″ | 32 x 20 | 42.2 x 26.7 | 36.8 | 41.2 |
1-1/4″ x 1″ | 32 x 25 | 42.2 x 33.4 | 40.1 | 42.4 |
1-1/2″ x 1/2″ | 40 x 15 | 48.3 x 21.3 | 35 | 41.5 |
1-1/2″ x 3/4″ | 40 x 20 | 48.3 x 26.7 | 38.6 | 44.5 |
1-1/2″ x 1″ | 40 x 25 | 48.3 x 33.4 | 41.9 | 45.7 |
2″ x 1/2″ | 50 x 15 | 60.3 x 21.3 | 37.5 | 47.5 |
2″ x 3/4″ | 50 x 20 | 60.3 x 26.7 | 40.6 | 50 |
2″ x 1″ | 50 x 25 | 60.3 x 33.4 | 43.9 | 51.3 |
2″ x 1-1/4″ | 50 x 32 | 60.3 x 42.2 | 48.3 | 53.3 |
2″ x 1-1/2″ | 50 x 40 | 60.3 x 48.3 | 51.3 | 54.9 |
2-1/2″ x 3/4″ | 65 x 20 | 73.0 x 26.7 | 42 | 57 |
2-1/2″ x 1″ | 65 x 25 | 73.0 x 33.4 | 46 | 58.7 |
2-1/2″ x 1-1/4″ | 65 x 32 | 73.0 x 42.2 | 50.5 | 60 |
2-1/2″ x 1-1/2″ | 65 x 40 | 73.0 x 48.3 | 54.9 | 63.8 |
2-1/2″ x 2″ | 65 x 50 | 73.0 x 60.3 | 60.7 | 66 |
3″ x 3/4″ | 80 x 20 | 88.9 x 26.7 | 45 | 65 |
3″ x 1″ | 80 x 25 | 88.9 x 33.4 | 50 | 67.5 |
3″ x 1-1/4″ | 80 x 32 | 88.9 x 42.2 | 55 | 70 |
3″ x 1-1/2″ | 80 x 40 | 88.9 x 48.3 | 58 | 72 |
3″ x 2″ | 80 x 50 | 88.9 x 60.3 | 64 | 73.4 |
3″ x 2-1/2″ | 80 x 65 | 88.9 x 73.0 | 71.9 | 75.9 |
4″ x 1-1/4″ | 100 x 32 | 114.3 x 42.2 | 60 | 85 |
4″ x 1-1/2″ | 100 x 40 | 114.3 x 48.3 | 62 | 85 |
4″ x 2″ | 100 x 50 | 114.3 x 60.3 | 69 | 87 |
4″ x 2-1/2″ | 100 x 65 | 114.3 x 73.0 | 78 | 90 |
4″ x 3″ | 100 x 80 | 114.3 x 88.9 | 83.8 | 91.4 |
1/2″x 3/8″ | 15 x 10 | 21.3 x 17.1 | 30.2 | 30.2 |
1″ x 3/4″ | 25 x 20 | 33.4 x 26.7 | 38.1 | 39.6 |
1-1/4″ x 1/2″ | 32 x 15 | 42.2 x 21.3 | 36.5 | 42 |
application
- Equipment size transition connections: Pump valve inlets/outlets, compressor piping, simultaneously achieving right-angle turns + pipe diameter transitions (e.g., 4“ main pipe to 3” equipment interface).
- Instrument precision piping: Pressure gauges, sensor branches, small-size diameter transitions (e.g., 1“ × 1/2”) precisely matching instrument threaded interfaces.
- Steam system retrofit: Low-pressure steam pipes in boiler rooms (Class 150), temperature-resistant from -29°C to 66°C, with hot-dip galvanized coating to prevent condensation corrosion.
- High-pressure fluid control: Hydraulic stations and air compressor systems (Class 300), with 2000 psi pressure rating for safety assurance.
- Mobile equipment integration: Fuel/hydraulic lines for construction machinery, threaded connections resistant to vibration, quick disassembly and maintenance.
advantages
- Dual pressure rating coverage:
- Class 150: Economy class, covers conventional 300 psi systems;
- Class 300: High-pressure specific, withstands 2000 psi burst pressure without failure, and improves safety factor by 60%.
- Earthquake-resistant and crack-resistant design: Ductile cast iron (ASTM A197) with excellent ductility, providing 35% higher resistance to water hammer impact compared to ordinary cast iron.
- Intelligent variable-diameter structure:
- Smooth inner wall transition (e.g., 4“×3”), with flow velocity change attenuation <8%;
- NPT threaded double-end sealing, UL/FM certified with zero leakage.
- Full-environment corrosion protection:
- Hot-dip galvanized coating with salt spray resistance >800 hours, suitable for coastal power plants and chemical plants;
- Black iron version with phosphated surface treatment, meeting rust prevention requirements in dry environments.
- 90-second rapid installation: Threaded direct connection without tools, saving 4 hours per joint compared to welded elbows.
packing
- Threaded Armor Protection:
- Threaded ends are coated with long-lasting anti-rust grease, and double-sealed with silicone caps and heat-shrinkable film.
- Elbow bodies are wrapped in pearl cotton and embedded in custom foam molds to prevent transportation collisions.
- Pressure-graded packaging:
- Class 150: Blue-labeled boxes, 25 pieces per box (≤1″), with internal paper dividers and desiccants.
- Class 300: Red-labeled box, 10 pieces per box (high-pressure components packaged separately), with “High Pressure” warning label printed on the box.
- Revolutionary Solution for Large Components:
- ≥3″ elbows use recyclable steel frame boxes with embedded RFID chips for scanning to obtain installation torque parameters;
- Wooden boxes have shock-absorbing springs installed at the four corners, passing a 1.5-meter drop test standard.
- Error-proofing and traceability system:
- Product casting pressure rating identification (e.g., “CL300”);
- Outer boxes labeled with diameter conversion tags (e.g., “2” × 1“ → DN50 × 25”), to prevent misapplication at construction sites.
Available size
SIZE | A | B | ||
INCH | DN | MM | MM | MM |
1/2″ x 3/8″ | 15 x 10 | 21.3 x 17.1 | 26.4 | 26.2 |
3/4″ x 3/8″ | 20 x 10 | 26.7 x 17.1 | 28.5 | 28.7 |
3/4″ x 1/2″ | 20 x 15 | 26.7 x 21.3 | 30.5 | 31 |
1″ x 1/4″ | 25 x 8 | 33.4 x 13.7 | 27 | 31 |
1″ x 3/8″ | 25 x 10 | 33.4 x 17.1 | 30 | 32.3 |
1″ x 1/2″ | 25 x 15 | 33.4 x 21.3 | 32 | 35.5 |
1″ x 3/4″ | 25 x 20 | 33.4 x 26.7 | 34.8 | 36.8 |
1-1/4″ x 3/8″ | 32 x 10 | 42.2 x 17.1 | 32 | 36.5 |
1-1/4″ x 1/2″ | 32 x 15 | 42.2 x 21.3 | 34 | 38.9 |
1-1/4″ x 3/4″ | 32 x 20 | 42.2 x 26.7 | 36.8 | 41.2 |
1-1/4″ x 1″ | 32 x 25 | 42.2 x 33.4 | 40.1 | 42.4 |
1-1/2″ x 1/2″ | 40 x 15 | 48.3 x 21.3 | 35 | 41.5 |
1-1/2″ x 3/4″ | 40 x 20 | 48.3 x 26.7 | 38.6 | 44.5 |
1-1/2″ x 1″ | 40 x 25 | 48.3 x 33.4 | 41.9 | 45.7 |
2″ x 1/2″ | 50 x 15 | 60.3 x 21.3 | 37.5 | 47.5 |
2″ x 3/4″ | 50 x 20 | 60.3 x 26.7 | 40.6 | 50 |
2″ x 1″ | 50 x 25 | 60.3 x 33.4 | 43.9 | 51.3 |
2″ x 1-1/4″ | 50 x 32 | 60.3 x 42.2 | 48.3 | 53.3 |
2″ x 1-1/2″ | 50 x 40 | 60.3 x 48.3 | 51.3 | 54.9 |
2-1/2″ x 3/4″ | 65 x 20 | 73.0 x 26.7 | 42 | 57 |
2-1/2″ x 1″ | 65 x 25 | 73.0 x 33.4 | 46 | 58.7 |
2-1/2″ x 1-1/4″ | 65 x 32 | 73.0 x 42.2 | 50.5 | 60 |
2-1/2″ x 1-1/2″ | 65 x 40 | 73.0 x 48.3 | 54.9 | 63.8 |
2-1/2″ x 2″ | 65 x 50 | 73.0 x 60.3 | 60.7 | 66 |
3″ x 3/4″ | 80 x 20 | 88.9 x 26.7 | 45 | 65 |
3″ x 1″ | 80 x 25 | 88.9 x 33.4 | 50 | 67.5 |
3″ x 1-1/4″ | 80 x 32 | 88.9 x 42.2 | 55 | 70 |
3″ x 1-1/2″ | 80 x 40 | 88.9 x 48.3 | 58 | 72 |
3″ x 2″ | 80 x 50 | 88.9 x 60.3 | 64 | 73.4 |
3″ x 2-1/2″ | 80 x 65 | 88.9 x 73.0 | 71.9 | 75.9 |
4″ x 1-1/4″ | 100 x 32 | 114.3 x 42.2 | 60 | 85 |
4″ x 1-1/2″ | 100 x 40 | 114.3 x 48.3 | 62 | 85 |
4″ x 2″ | 100 x 50 | 114.3 x 60.3 | 69 | 87 |
4″ x 2-1/2″ | 100 x 65 | 114.3 x 73.0 | 78 | 90 |
4″ x 3″ | 100 x 80 | 114.3 x 88.9 | 83.8 | 91.4 |
1/2″x 3/8″ | 15 x 10 | 21.3 x 17.1 | 30.2 | 30.2 |
1″ x 3/4″ | 25 x 20 | 33.4 x 26.7 | 38.1 | 39.6 |
1-1/4″ x 1/2″ | 32 x 15 | 42.2 x 21.3 | 36.5 | 42 |
- Equipment size transition connections: Pump valve inlets/outlets, compressor piping, simultaneously achieving right-angle turns + pipe diameter transitions (e.g., 4“ main pipe to 3” equipment interface).
- Instrument precision piping: Pressure gauges, sensor branches, small-size diameter transitions (e.g., 1“ × 1/2”) precisely matching instrument threaded interfaces.
- Steam system retrofit: Low-pressure steam pipes in boiler rooms (Class 150), temperature-resistant from -29°C to 66°C, with hot-dip galvanized coating to prevent condensation corrosion.
- High-pressure fluid control: Hydraulic stations and air compressor systems (Class 300), with 2000 psi pressure rating for safety assurance.
- Mobile equipment integration: Fuel/hydraulic lines for construction machinery, threaded connections resistant to vibration, quick disassembly and maintenance.
- Dual pressure rating coverage:
- Class 150: Economy class, covers conventional 300 psi systems;
- Class 300: High-pressure specific, withstands 2000 psi burst pressure without failure, and improves safety factor by 60%.
- Earthquake-resistant and crack-resistant design: Ductile cast iron (ASTM A197) with excellent ductility, providing 35% higher resistance to water hammer impact compared to ordinary cast iron.
- Intelligent variable-diameter structure:
- Smooth inner wall transition (e.g., 4“×3”), with flow velocity change attenuation <8%;
- NPT threaded double-end sealing, UL/FM certified with zero leakage.
- Full-environment corrosion protection:
- Hot-dip galvanized coating with salt spray resistance >800 hours, suitable for coastal power plants and chemical plants;
- Black iron version with phosphated surface treatment, meeting rust prevention requirements in dry environments.
- 90-second rapid installation: Threaded direct connection without tools, saving 4 hours per joint compared to welded elbows.
- Threaded Armor Protection:
- Threaded ends are coated with long-lasting anti-rust grease, and double-sealed with silicone caps and heat-shrinkable film.
- Elbow bodies are wrapped in pearl cotton and embedded in custom foam molds to prevent transportation collisions.
- Pressure-graded packaging:
- Class 150: Blue-labeled boxes, 25 pieces per box (≤1″), with internal paper dividers and desiccants.
- Class 300: Red-labeled box, 10 pieces per box (high-pressure components packaged separately), with “High Pressure” warning label printed on the box.
- Revolutionary Solution for Large Components:
- ≥3″ elbows use recyclable steel frame boxes with embedded RFID chips for scanning to obtain installation torque parameters;
- Wooden boxes have shock-absorbing springs installed at the four corners, passing a 1.5-meter drop test standard.
- Error-proofing and traceability system:
- Product casting pressure rating identification (e.g., “CL300”);
- Outer boxes labeled with diameter conversion tags (e.g., “2” × 1“ → DN50 × 25”), to prevent misapplication at construction sites.
