About On/Off Valves
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Butt-Weld On/Off Valves
- Valve Type: Ball
- For Use With: Argon, Helium, Krypton, Neon, Oil, Steam, Water, Xenon
- Seal Material: PTFE Plastic
Weld these valves to unthreaded metal pipe for a permanent, flush connection that permits smooth flow through a line. To access internal components without disturbing welded connections, disassemble the three-piece bolted body inline. Valves are cleaned and bagged for high-purity applications such as oxygen service. All have a 316 stainless steel body for excellent corrosion resistance. The lockable lever handle can be fixed in place using a padlock (not included) with a shackle diameter up to 5/16”. These valves are full port, so they do not restrict flow.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
| Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | For Max. Shackle Dia. | Each | |
316 Stainless Steel Body | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Butt Weld × Butt Weld | |||||||||
| 1/2 | 26 | 1440 psi @ 100° F | 250 psi @ 400° F | -50° to 400° | 29 | 3 13/16" | 5/16" | 3043K71 | 0000000 |
| 3/4 | 51 | 1440 psi @ 100° F | 250 psi @ 400° F | -50° to 400° | 29 | 4 11/16" | 5/16" | 3043K72 | 000000 |
| 1 | 68 | 1440 psi @ 100° F | 250 psi @ 400° F | -50° to 400° | 29 | 5 3/16" | 5/16" | 3043K73 | 000000 |
| 1 1/2 | 170 | 1440 psi @ 100° F | 250 psi @ 400° F | -50° to 400° | 29 | 6" | 5/16" | 3043K75 | 00000000 |
| 2 | 376 | 1440 psi @ 100° F | 250 psi @ 400° F | -50° to 400° | 29 | 6 13/16" | 5/16" | 3043K76 | 00000000 |
On/Off Valves with Butt-Weld Fittings for Food and Beverage
- Valve Type: Ball
- For Use With: Food, Beverage
- Seal Material: PTFE Plastic
Weld these valves to unthreaded metal pipe for a permanent, flush connection that permits smooth flow through a line. For easy cleaning in food and beverage systems, they have polished internal surfaces and a three-piece bolted body that disassembles inline for access to internal components without cutting welded connections. All valves have a lockable lever handle that can be fixed in place using a padlock (not included). They are full port, so they do not restrict flow.
| For Tube OD | Max. Pressure | Temperature Range, °F | End-to-End Lg. | For Max. Shackle Dia. | Each | |
316 Stainless Steel Body | ||||||
|---|---|---|---|---|---|---|
Butt Weld × Butt Weld | ||||||
| 1/2" | 1000 psi @ 150° F | 0° to 300° | 4 5/16" | 1/4" | 44755K211 | 0000000 |
| 3/4" | 1000 psi @ 150° F | 0° to 300° | 4 11/16" | 1/4" | 44755K212 | 000000 |
| 1" | 1000 psi @ 150° F | 0° to 300° | 5" | 1/4" | 44755K213 | 000000 |
| 1 1/2" | 1000 psi @ 150° F | 0° to 300° | 5 5/8" | 9/32" | 44755K214 | 000000 |
| 2" | 1000 psi @ 150° F | 0° to 300° | 6 7/16" | 9/32" | 44755K215 | 000000 |
| 3" | 800 psi @ 150° F | 0° to 300° | 9" | 3/8" | 44755K217 | 00000000 |