About Gradual On/Off Valves
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About On/Off Valves
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Threaded On/Off Valves
Use these valves in general purpose applications, such as those with water, oil, air, and inert gas.
Brass valves have good corrosion resistance to air, water, and oil. 316 stainless steel valves have the best corrosion resistance.
Full-port valves do not restrict flow. Standard-port valves slightly restrict flow.
FM-approved valves are used in fire suppression systems. They help isolate parts of water supply systems in buildings and plants.
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.


- Valve Type: Ball
- For Use With: Air, Steam, Water
- Seal Material:
NPT Female × NPT Female: Fluorelastomer Rubber
NPT Female × NPT Male: PTFE Plastic - Specifications Met: See table
Lockable handles can be fixed in place using a padlock (not included).
Oval handles have the largest gripping surface of any handle type, so they’re the easiest to grip when slippery.
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Ball Material | For Max. Shackle Dia. | Specifications Met | Each | |
NPT Female × NPT Female | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 6.5 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 1 3/4" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K41 | 000000 |
| 3/8 | 10 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 1 3/4" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K42 | 00000 |
| 1/2 | 46 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 2 5/16" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K43 | 00000 |
| 3/4 | 66 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 2 1/2" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K44 | 00000 |
| 1 | 93 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 3 3/16" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K45 | 00000 |
| 1 1/4 | 130 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 3 11/16" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K46 | 00000 |
| 1 1/2 | 290 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 4" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K47 | 00000 |
| 2 | 420 | 600 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 4 3/4" | Brass | 5/16" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K48 | 000000 |
| 2 1/2 | 590 | 450 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 6 1/8" | Brass | 5/16" | CSA-US Certified, CSA Certified | 4901K67 | 000000 |
| 3 | 740 | 450 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 7" | Brass | 5/16" | CSA-US Certified, CSA Certified | 4901K49 | 000000 |
| 4 | 1,400 | 450 psi @ 100° F | 150 psi @ 350° F | -40° to 350° | 29.9 | Full | 8 1/2" | Brass | 5/16" | CSA-US Certified, CSA Certified | 4901K61 | 000000 |
NPT Female × NPT Male | ||||||||||||
| 1/4 | 6.5 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 2 1/4" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K51 | 00000 |
| 3/8 | 10 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 2 1/4" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K52 | 00000 |
| 1/2 | 46 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 2 3/4" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K53 | 00000 |
| 3/4 | 66 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 3" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K54 | 00000 |
| 1 | 93 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 3 5/8" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K55 | 00000 |
| 1 1/4 | 130 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 4 3/16" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K62 | 00000 |
| 1 1/2 | 290 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 4 7/16" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K63 | 000000 |
| 2 | 420 | 600 psi @ 100° F | 150 psi @ 365° F | -40° to 350° | 29.9 | Full | 5 1/4" | Brass | 9/32" | FM Approved, UL Listed, C-UL Listed, CSA-US Certified, CSA Certified | 4901K64 | 000000 |

- Valve Type: Ball
- For Use With: See table
- Seal Material: PTFE Plastic
Lockable handles can be fixed in place using a padlock (not included).
Oval handles have the largest gripping surface of any handle type, so they’re the easiest to grip when slippery.
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | Ball Material | For Max. Shackle Dia. | For Use With | Each | |
NPT Female × NPT Female | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 1 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 1 9/16" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K86 | 000000 |
| 1/4 | 6 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 2" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K38 | 00000 |
| 3/8 | 2.5 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 1 3/4" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K87 | 00000 |
| 3/8 | 6 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 2" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K39 | 00000 |
| 1/2 | 5.5 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 2 1/4" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K88 | 00000 |
| 1/2 | 24 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 2 3/8" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K41 | 00000 |
| 3/4 | 10 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 2 5/16" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K89 | 00000 |
| 3/4 | 35 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 2 3/4" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K42 | 00000 |
| 1 | 15.5 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 2 13/16" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K91 | 00000 |
| 1 | 47 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 3 1/4" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K43 | 000000 |
| 1 1/4 | 20 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 3 1/16" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K92 | 000000 |
| 1 1/4 | 81 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 3 13/16" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K44 | 000000 |
| 1 1/2 | 37 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 3 1/4" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K93 | 000000 |
| 1 1/2 | 105 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 4 5/16" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K45 | 000000 |
| 2 | 60 | 800 psi @ 100° F | 50 psi @ 295° F | 0° to 400° | Standard | 3 15/16" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam | 46325K94 | 000000 |
| 2 | 241 | 1000 psi @ 200° F | __ | 0° to 400° | Full | 5 1/4" | 316 Stainless Steel | 1/4" | Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon | 46495K46 | 000000 |
Threaded On/Off Valves with Gauge Port
- Valve Type: Ball
- For Use With: Air, Water
- Seal Material: Fluoroelastomer Rubber
- Specifications Met: C-UL Listed, CSA Certified, CSA-US Certified, UL Listed
Attach a gauge to the side port on these valves to monitor pressure, temperature, and other measurements in your line. The port can also be used to drain and divert liquid. These valves are full port, so they do not restrict flow.
Lockable handles can be fixed in place using a padlock (not included).
Oval handles have the largest gripping surface of any handle type, so they’re the easiest to grip when slippery.
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.

Gauge Port | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Pipe Size | Gender | Thread Type | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | End-to-End Lg. | For Max. Shackle Dia. | Each | |
NPT Female × NPT Female | |||||||||||
| 1/2 | 1/4 | Female | NPT | 32.3 | 600 psi @ 100° F | -40° to 350° | 29.9 | 2 9/16" | 9/32" | 4085T516 | 000000 |
| 3/4 | 1/4 | Female | NPT | 48.5 | 600 psi @ 100° F | -40° to 350° | 29.9 | 2 3/4" | 9/32" | 4085T517 | 00000 |
| 1 | 1/4 | Female | NPT | 80.9 | 600 psi @ 100° F | -40° to 350° | 29.9 | 3 7/16" | 9/32" | 4085T518 | 00000 |
High-Pressure Compact Threaded On/Off Valves
These valves handle twice the pressure of other compact valves. Install them in tight spots, such as where pipelines are crowded together. They’re roughly half the height and length of standard threaded valves.
316 stainless steel valves resist corrosion better than brass and steel valves.
Lockable handles can be fixed in place using a padlock (not included).
Full-port valves 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.

- Valve Type: Ball
- For Use With: Air, Argon, Helium, Krypton, Neon, Water, Xenon
- Seal Material: PTFE Plastic
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | For Max. Shackle Dia. | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4 × 1/4 | 8.2 | 1000 psi @ 100° F | 0° to 425° | 29.9 | Full | 2 1/8" | 9/32" | 45395K219 | 000000 |
| 3/8 × 3/8 | 8.2 | 1000 psi @ 100° F | 0° to 425° | 29.9 | Full | 2 1/8" | 9/32" | 45395K221 | 00000 |
| 1/2 × 1/2 | 18.5 | 1000 psi @ 100° F | 0° to 425° | 29.9 | Full | 2 1/2" | 9/32" | 45395K222 | 00000 |
| 3/4 × 3/4 | 29.7 | 1000 psi @ 100° F | 0° to 425° | 29.9 | Full | 2 15/16" | 9/32" | 8393N113 | 00000 |
| 1 × 1 | 51.5 | 1000 psi @ 100° F | 0° to 425° | 29.9 | Full | 3 7/16" | 9/32" | 8393N114 | 00000 |
High-Pressure Threaded On/Off Valves
Rated for at least three times the pressure of standard threaded valves, these valves are used to start and stop the flow of compressed gas, pressurized water, or steam.
Oval handles have the largest gripping surface of any handle type, so they’re the easiest to grip when slippery.
316 stainless steel valves are more corrosion resistant than steel valves.
Standard-port valves slightly restrict flow.

- Valve Type: Ball
- For Use With: Oil, Steam, Water
- Seal Material: PTFE Plastic
| Pipe Size | Max. Pressure | Max. Steam Pressure | Flow Coefficient (Cv) | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 2,000 psi @ 100° F | 150 psi @ 365° F | 15 | -20° to 450° | 29 | Standard | 2 1/4" | 49355K307 | 000000 |
| 3/4 | 2,000 psi @ 100° F | 150 psi @ 365° F | 30 | -20° to 450° | 29 | Standard | 3" | 49355K308 | 00000 |
| 1 | 2,000 psi @ 100° F | 150 psi @ 365° F | 43 | -20° to 450° | 29 | Standard | 3 3/8" | 49355K309 | 000000 |

- Valve Type: Ball
- For Use With: Oil, Steam, Water
- Seal Material: PTFE Plastic
| Pipe Size | Max. Pressure | Max. Steam Pressure | Flow Coefficient (Cv) | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
NPT Female × NPT Female | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 2,000 psi @ 100° F | 150 psi @ 365° F | 15 | -50° to 450° | 29 | Standard | 2 1/4" | 49355K317 | 0000000 |
| 3/4 | 2,000 psi @ 100° F | 150 psi @ 365° F | 30 | -50° to 450° | 29 | Standard | 3" | 49355K318 | 000000 |
| 1 | 2,000 psi @ 100° F | 150 psi @ 365° F | 43 | -50° to 450° | 29 | Standard | 3 3/8" | 49355K319 | 000000 |
Easy-Maintenance Threaded On/Off Valves
With a three-piece bolted body that disassembles for access to internal components, you can clean and repair these valves without unthreading them from your line.
316 stainless steel valves are more corrosion resistant than bronze or steel valves.
Oval handles have the largest gripping surface of any handle type, so they’re the easiest to grip when slippery.
Valves with actuator mounts can be equipped with air-powered or electric actuators using the mounting holes. This allows you to switch them from manual to automatic operation.
PTFE seals are the best choice for valves that are opened and closed often. The PTFE material forms a seal while remaining slippery, so it resists wearing down and failing with repeated use.
Full-port valves do not restrict flow.
Maintenance kits include everything needed to replace the packing, seals, and seats on your valve.
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.


- Valve Type: Ball
- For Use With: Water, Oil, Air
Valves | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Actuator Mounting Holes | Maintenance Kits | |||||||||||
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Port Type | End-to-End Lg. | For Max. Shackle Dia. | No. of | Thread Size | Each | Each | ||
NPT Female × NPT Female | ||||||||||||
PTFE Plastic Seal—Glass-Filled PTFE Plastic Seat | ||||||||||||
| 1/4 | 20 | 1000 psi @ 100° F | 0° to 450° | Full | 2 1/2" | 1/4" | 3 | M5 × 0.8 mm | 4632K734 | 000000 | 4632K32 | 000000 |
| 3/8 | 25 | 1000 psi @ 100° F | 0° to 450° | Full | 2 1/2" | 1/4" | 3 | M5 × 0.8 mm | 4632K736 | 00000 | 4632K32 | 00000 |
| 1/2 | 28 | 1000 psi @ 100° F | 0° to 450° | Full | 2 13/16" | 1/4" | 3 | M5 × 0.8 mm | 4632K738 | 00000 | 4632K33 | 00000 |
| 3/4 | 50 | 1000 psi @ 100° F | 0° to 450° | Full | 3 3/8" | 1/4" | 3 | M5 × 0.8 mm | 4632K741 | 000000 | 4632K34 | 00000 |
| 1 | 70 | 1000 psi @ 100° F | 0° to 450° | Full | 3 5/8" | 1/4" | 3 | M5 × 0.8 mm | 4632K743 | 000000 | 4632K35 | 00000 |
| 1 1/4 | 112 | 1000 psi @ 100° F | 0° to 450° | Full | 4 5/16" | 1/4" | 3 | M5 × 0.8 mm | 4632K745 | 000000 | 4632K36 | 00000 |
| 1 1/2 | 170 | 1000 psi @ 100° F | 0° to 450° | Full | 4 13/16" | 1/4" | 3 | M6 × 1 mm | 4632K747 | 000000 | 4632K37 | 000000 |
| 2 | 395 | 1000 psi @ 100° F | 0° to 450° | Full | 5 9/16" | 1/4" | 3 | M6 × 1 mm | 4632K731 | 000000 | 4632K38 | 000000 |
Easy-Maintenance Socket-Connect On/Off Valves
Clean and maintain these valves without removing welded connections. To create a permanent, leak-tight connection, insert unthreaded pipe into the socket and weld. These valves have a three-piece bolted body that disassembles inline, which makes it easy to access internal components. They also have lockable handles that can be fixed in place with a padlock (not included). All are full port, so they do not restrict flow.
316 stainless steel valves resist corrosion better than steel valves.
Oval handles are less likely to shift than lever handles if they’re bumped or snagged, so you won’t accidentally adjust the 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.
Maintenance kits (sold separately) include seats, seals, and stem packing to replace worn parts inside valves.


- Valve Type: Ball
- For Use With: Air, Argon, Helium, Neon, Oil, Water, Xenon
- Seal Material: PTFE Plastic
Valves | Maintenance Kits | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | For Pipe Schedule | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | For Max. Shackle Dia. | Each | Each | ||
Socket Connect × Socket Connect | ||||||||||
| 1/2 | Any | 28 | 1000 psi @ 220° F | 0° to 450° | 2 13/16" | 1/4" | 4866K63 | 000000 | 4632K33 | 000000 |
| 3/4 | Any | 50 | 1000 psi @ 220° F | 0° to 450° | 3 5/16" | 1/4" | 4866K64 | 000000 | 4632K34 | 00000 |
| 1 | Any | 70 | 1000 psi @ 220° F | 0° to 450° | 3 5/8" | 1/4" | 4866K65 | 000000 | 4632K35 | 00000 |
| 1 1/2 | Any | 170 | 1000 psi @ 220° F | 0° to 450° | 4 13/16" | 1/4" | 4866K66 | 000000 | 4632K37 | 000000 |
| 2 | Any | 395 | 1000 psi @ 220° F | 0° to 450° | 5 9/16" | 1/4" | 4866K67 | 000000 | 4632K38 | 000000 |

























