How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Butt-Weld Fittings for Stainless Steel Tubing
- For Use With: See table
- Temperature Range: See table
- Tubing:
304 Stainless Steel: Use with 304/304L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except DIN EN 10357 fittings with only ASTM A269 or ASTM A270
316 Stainless Steel: Use with 316/316L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except ASME BPE and DIN EN 10357 fittings with only ASTM A269 or ASTM A270 - Specifications Met: See table
Weld these fittings to tubing for a permanent, flush connection that permits smooth flow through a line.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
ASME BPE fittings are polished to a 20 Ra finish for an extra-smooth interior that prevents product buildup and bacteria growth. Use them in pharmaceutical and bioprocessing applications. DIN EN 10357 fittings meet an international standard for butt-weld fitting specifications. This standard is common in the food and chemical industries.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Max. Pressure | Max. Vacuum | Temp. Range Min., °F | Temp. Range Max., °F | Wall Thick. | For Use With | Specifications Met | Each | |
304/304L Stainless Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
Polished | |||||||||
1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 000000 |
1 1/2" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
2" | 550 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
2 1/2" | 450 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
3" | 350 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
4" | 250 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.083" | Air, Food, Water | __ | 00000000 | 000000 |
19mm | Not Rated | Not Rated | Not Rated | 250° | 1.5mm | Dairy, Food | DIN EN 10253-4 | 00000000 | 00000 |
29mm | Not Rated | Not Rated | Not Rated | 250° | 1.5mm | Dairy, Food | DIN EN 10253-4 | 00000000 | 00000 |
41mm | Not Rated | Not Rated | Not Rated | 250° | 1.5mm | Dairy, Food | DIN EN 10253-4 | 00000000 | 00000 |
53mm | Not Rated | Not Rated | Not Rated | 250° | 1.5mm | Dairy, Food | DIN EN 10253-4 | 00000000 | 00000 |
70mm | Not Rated | Not Rated | Not Rated | 250° | 2mm | Dairy, Food | DIN EN 10253-4 | 00000000 | 00000 |
85mm | Not Rated | Not Rated | Not Rated | 250° | 2mm | Dairy, Food | DIN EN 10253-4 | 00000000 | 00000 |
Dull | |||||||||
1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
1 1/2" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
2" | 550 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
2 1/2" | 450 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
3" | 350 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
4" | 250 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.083" | Air, Food, Water | __ | 00000000 | 00000 |
6" | 120 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.109" | Air, Food, Water | __ | 00000000 | 000000 |
316/316L Stainless Steel | |||||||||
Polished | |||||||||
1/4" | 200 psi @ 72° F | __ | -65° | 200° | 0.035" | Air, Deionized Water, Pharmaceuticals, Water | ASME BPE | 000000000 | 00000 |
3/8" | 200 psi @ 72° F | __ | -65° | 200° | 0.035" | Air, Deionized Water, Pharmaceuticals, Water | ASME BPE | 000000000 | 00000 |
1/2" | 1,200 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
3/4" | 1,000 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 0000000 | 00000 |
1 1/2" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 0000000 | 00000 |
2" | 550 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 0000000 | 00000 |
2 1/2" | 450 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 0000000 | 00000 |
3" | 350 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 0000000 | 00000 |
4" | 250 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.083" | Air, Food, Water | __ | 0000000 | 00000 |
6" | 120 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.109" | Air, Food, Water | __ | 0000000 | 000000 |
Dull | |||||||||
1/2" | 1,200 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
3/4" | 1,000 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
1" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
1 1/2" | 600 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
2" | 550 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
2 1/2" | 450 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
3" | 350 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.065" | Air, Food, Water | __ | 00000000 | 00000 |
4" | 250 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.083" | Air, Food, Water | __ | 00000000 | 00000 |
6" | 120 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 0.109" | Air, Food, Water | __ | 00000000 | 000000 |