How to Identify and Measure Fittings
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FM-Approved Low-Pressure Cast Iron Threaded Pipe Fittings
Suitable for use in fire-protection applications, these pipe fittings are made of cast iron, so they are brittle and can be quickly opened with the strike of a sledge hammer. They are also known as Pressure Class 125 fittings. Use in noncorrosive environments.
Inline tees are also known as branch tees.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class: 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
|---|---|---|---|---|---|
| 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 000000 |
| 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 2 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 3 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 000000 |
| 4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 000000 |
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Pressure Class: 125
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASME B1.20.1, ASME B16.4
- Pipe Nipples and Pipe: Use Schedule 40 steel
Pipe Size | ||||||
|---|---|---|---|---|---|---|
| (A) | (B) | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | ||||||
| 3/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 000000 |
| 1 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/4 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/4 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/4 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 1 1/2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 2 | 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 2 | 3/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 2 | 1 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 2 | 1 1/4 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
| 2 | 1 1/2 | 125 psi @ 72° F | 125 psi @ 350° F | Iron | 00000000 | 00000 |
Drain, Waste, and Vent Iron Pipe Fittings
Use these fittings in gravity-flow applications both above and below ground. They are also known as no-hub pipe fittings and soil pipe fittings. To connect, place the end of the fitting against your pipe or another fitting and connect with a low-pressure clamp-on connector (sold separately). The clamp-on connector is also known as a no-hub coupling. Fittings are for use in noncorrosive environments.
Inline tee reducing adapters are also known as branch tees.
For technical drawings and 3-D models, click on a part number.
- For Use With: Water
- Temperature Range: 0° to 180° F
- Specifications Met: ASTM A666, ASTM C564
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
| For Pipe Size | Lg. | Max. Pressure | Material | Sleeve Material | Each | |
| 1 1/2 | 3" | 15 psi @ 72° F | 304 Stainless Steel | Neoprene Rubber | 0000000 | 000000 |
| 2 | 3" | 15 psi @ 72° F | 304 Stainless Steel | Neoprene Rubber | 0000000 | 00000 |
| 3 | 3" | 15 psi @ 72° F | 304 Stainless Steel | Neoprene Rubber | 0000000 | 00000 |
| 4 | 3" | 15 psi @ 72° F | 304 Stainless Steel | Neoprene Rubber | 0000000 | 00000 |
- For Use With: Water
- Temperature Range: 0° to 180° F
- Specifications Met: ASTM A666, ASTM C564
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
- For Tube Material: Copper
- For Use With: Water
- Temperature Range: 0° to 180° F
- Specifications Met: ASTM A666, ASTM C564
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
FM-Approved Iron Pipe Fittings with Flanged Ends
FM approved, these fittings are suitable for use in fire-protection systems. All have flat-surface flanged ends that only mate to another same-size flat-surface flange, pump, or valve with a gasket (sold separately) to create an access point in a pipeline. Use them in noncorrosive areas.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: FM Approved, UL Listed, ASTM A126, ASTM B307, Fed. Spec. WW-F-406, ASME B16.1, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 40 steel
- Flanges: Use Class 150 steel
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | 150 psi @ 72° F | 125 psi @ 350° F | Iron | 0000000 | 0000000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | 150 psi @ 72° F | 125 psi @ 350° F | Iron | 0000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 150 psi @ 72° F | 125 psi @ 350° F | Iron | 0000000 | 000000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | 150 psi @ 72° F | 125 psi @ 350° F | Iron | 0000000 | 000000 |