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.
Bronze valves are stronger and more durable than brass valves for a longer service life. Standard-port valves slightly 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.
For technical drawings and 3-D models, click on a part number.

- Valve Type: Ball
- For Use With: Air, Oil, Steam, Water
- Seal Material: PTFE Plastic
Wrench-operated valves are the most compact, making them good for use in low-profile spots, such as between pipelines. Because they require a shut-off valve wrench to open and close the valve, they can't be opened accidentally when bumped or snagged.
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 | Each | |
NPT Female × NPT Female | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
3/8 | 7.2 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 2 1/16" | Brass | 0000000 | 000000 |
1/2 | 15 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 2 3/16" | Brass | 0000000 | 00000 |
3/4 | 30 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 3" | Brass | 0000000 | 00000 |
1 | 43 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 3 3/8" | Brass | 0000000 | 00000 |
1 1/4 | 48 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 4" | Brass | 0000000 | 000000 |
1 1/2 | 84 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 4 3/8" | Brass | 0000000 | 000000 |
2 | 108 | 600 psi @ 100° F | 150 psi @ 365° F | -20° to 450° | 29 | Standard | 4 11/16" | Brass | 0000000 | 000000 |
Threaded On/Off Valves for Natural Gas and Propane
- Valve Type: Plug
- For Use With: Natural Gas, Propane
Also known as plug valves, these are often used as a mainline shutoff in natural gas and propane pipelines.
Wrench-operated valves require a wrench (not included) to open and close the valve.
For technical drawings and 3-D models, click on a part number.

Pipe Size | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Each | |
Bronze Body | |||||
---|---|---|---|---|---|
NPT Female × NPT Female | |||||
1/2 | 5 psi @ 70° F | 35° to 125° | 2" | 00000000 | 000000 |
1/2 | 25 psi @ 70° F | 35° to 125° | 2 1/8" | 00000000 | 00000 |
3/4 | 5 psi @ 70° F | 35° to 125° | 2 3/8" | 00000000 | 00000 |
1 | 2 psi @ 70° F | 35° to 125° | 2 3/4" | 00000000 | 00000 |
1 1/2 | 2 psi @ 70° F | 35° to 125° | 3 3/8" | 00000000 | 00000 |
2 | 2 psi @ 70° F | 35° to 125° | 4 3/8" | 00000000 | 000000 |
On/Off Valves with Solder-Connect Fittings for Refrigerant

- Valve Type: Ball
- For Use With: Refrigerant
- Seal Material: PTFE Plastic
- Specifications Met: UL Listed, C-UL Listed, CE Marked
Install these valves in HVAC and refrigeration systems to control CO₂. They are operated with a wrench to give you the leverage needed to manage the flow of highly pressurized gases common in refrigeration systems. Because they require a wrench, these valves can’t be opened accidentally when bumped or snagged. Solder them to metal tubing for a permanent, leak-tight connection. To monitor pressure or fluid flow, attach a gauge to the port. The port can also be used to drain and divert liquid. 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.
For technical drawings and 3-D models, click on a part number.
Gauge Ports | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Copper Tube Size | For Tube OD | No. of | Thread Size | Gender | Thread Type | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | End-to-End Lg. | Drive Style | Drive Size | For Refrigerant No. | Each | |
Wrench-Operated Brass Body | ||||||||||||||
Solder Connect × Solder Connect | ||||||||||||||
1/8 | 1/4" | 1 | 7/16"-20 | Male | UNF | 1 | 2,030 psi @ 300° F | -40° to 300° | 5" | External Hex | 13/16" | R-744 | 0000000 | 0000000 |
1/4 | 3/8" | 1 | 7/16"-20 | Male | UNF | 4.3 | 2,030 psi @ 300° F | -40° to 300° | 5 1/4" | External Hex | 13/16" | R-744 | 0000000 | 000000 |
3/8 | 1/2" | 1 | 7/16"-20 | Male | UNF | 6.2 | 2,030 psi @ 300° F | -40° to 300° | 5 1/2" | External Hex | 13/16" | R-744 | 0000000 | 000000 |
1/2 | 5/8" | 1 | 7/16"-20 | Male | UNF | 12.1 | 2,030 psi @ 300° F | -40° to 300° | 5 7/8" | External Hex | 13/16" | R-744 | 0000000 | 000000 |
5/8 | 3/4" | 1 | 7/16"-20 | Male | UNF | 19 | 2,030 psi @ 300° F | -40° to 300° | 5 7/8" | External Hex | 15/16" | R-744 | 0000000 | 000000 |
3/4 | 7/8" | 1 | 7/16"-20 | Male | UNF | 27.5 | 2,030 psi @ 300° F | -40° to 300° | 7 5/16" | External Hex | 15/16" | R-744 | 0000000 | 000000 |
1 | 1 1/8" | 1 | 7/16"-20 | Male | UNF | 48 | 2,030 psi @ 300° F | -40° to 300° | 7 5/16" | External Hex | 1 1/8" | R-744 | 0000000 | 000000 |
1 1/4 | 1 3/8" | 1 | 7/16"-20 | Male | UNF | 77 | 2,030 psi @ 300° F | -40° to 300° | 8 1/8" | External Hex | 1 1/8" | R-744 | 0000000 | 000000 |
1 1/2 | 1 5/8" | 1 | 7/16"-20 | Male | UNF | 96 | 2,030 psi @ 300° F | -40° to 300° | 9 1/2" | External Hex | 1 1/8" | R-744 | 0000000 | 000000 |
2 | 2 1/8" | 1 | 7/16"-20 | Male | UNF | 198 | 2,030 psi @ 300° F | -40° to 300° | 10 7/8" | External Hex | 1 5/8" | R-744 | 0000000 | 000000 |
FM-Approved Flanged Gradual On/Off Valves
FM-approved, these valves are often used to isolate sections of your facility’s water supply for fire suppression and protection. They bolt to flanges for easier installation and removal than threaded or weld-on valves. This makes them a great choice if you have to clean and maintain your line frequently. Also known as gate valves, they open and close gradually to prevent sudden starts and stops of flow that could damage your system. Epoxy coated, these valves resist corrosion. They’re bright red, so they’re easy to identify as fire valves.
Their rubber-coated gate, also known as a resilient wedge, compresses against the valve for a long-lasting, leakproof seal. It seals tightly even if you install these valves vertically, or if there’s low back pressure. For easy disassembly during maintenance, they have a flanged stem housing that bolts in place. However, the housing makes these valves heavier and larger than valves with a threaded or welded stem housing.
Wrench-operated valves are the best choice for hard-to-reach locations, such as underground or inside a manhole. Operate them from a distance with a valve wrench. You can also open and close them with a fire indicator post.
Valves with a nonrising stem keep the handle in the same position whether they’re open or closed. They're often used underground and in low-clearance locations.
Ductile iron valves are stronger and more durable than cast iron valves. They’ll handle greater pressure changes without cracking.
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.
For technical drawings and 3-D models, click on a part number.

- Valve Type: Gate
- For Use With: Drinking Water, Water
- Specifications Met: FM Approved, NSF/ANSI 61, UL Listed
O'all | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Pressure Class | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Dia. | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Drive Style | Drive Size | Features | Each | |
Flanged Stem Housing | |||||||||||||||||
4 | 125 | 9" | 7 1/2" | 8 | 3/4" | No | 945 | 300 psi @ 100° F | 35° to 140° | 9" | 18" | 9" | External Square | 2" | Indicator Post Mounting Flange | 0000000 | 000000000 |
6 | 125 | 11" | 9 1/2" | 8 | 7/8" | No | 2,250 | 300 psi @ 100° F | 35° to 140° | 10 1/2" | 22 1/2" | 10 1/2" | External Square | 2" | Indicator Post Mounting Flange | 0000000 | 00000000 |
8 | 125 | 13 1/2" | 11 3/4" | 8 | 7/8" | No | 4,150 | 300 psi @ 100° F | 35° to 140° | 11 1/2" | 27 1/2" | 11 1/2" | External Square | 2" | Indicator Post Mounting Flange | 0000000 | 00000000 |
Tight-Seal Flanged Gradual On/Off Valves
A rubber-coated gate, also known as a resilient wedge, compresses against the valve seat to give these valves a tight, leakproof seal. They shut tight even when they’re installed vertically, have low back pressure, or the liquid contains solids and debris. Often called gate valves, they open and close gradually to prevent sudden starts and stops that can damage your system. Since they bolt onto flanges, they’re easier to install and remove than threaded and weld-on valves. This makes them a good choice for lines that need frequent cleaning and maintenance. You can use them in lines for water supply, reclamation, and wastewater treatment—they meet AWWA (American Water Works Association) specifications. To protect against corrosion, the body is coated with epoxy.
The stem is nonrising, so it stays in the same position whether the valve is open or closed. They’re often used in low-clearance spots. Their flanged stem housing bolts in place to make them easy to take apart for repairs. However, the flanged stem housing makes these valves heavier and larger than valves with threaded or welded stem housings.
Wrench-operated valves work well in hard-to-reach places, such as underground or the bottom of manholes, since you can turn the flow on or off from a distance. Open and close them with T-handle valve wrenches.
Ductile iron valves are stronger and more durable than cast iron valves, handling greater pressure changes without cracking.
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.
For technical drawings and 3-D models, click on a part number.

- Valve Type: Gate
- For Use With: Water
- Specifications Met: AWWA C515
O'all | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Pressure Class | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Dia. | Bolts Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Drive Style | Drive Size | Each | |
Flanged Stem Housing | ||||||||||||||||
3 | 125 | 7 1/2" | 6" | 4 | 3/4" | No | 109 | 250 psi @ 100° F | 0° to 175° | 8" | 16" | 8" | External Square | 2" | 0000000 | 0000000 |
4 | 125 | 9" | 7 1/2" | 8 | 3/4" | No | 190 | 250 psi @ 100° F | 0° to 175° | 9" | 18 3/8" | 9" | External Square | 2" | 0000000 | 000000 |
6 | 125 | 11" | 9 1/2" | 8 | 7/8" | No | 427 | 250 psi @ 100° F | 0° to 175° | 10 1/2" | 24 5/8" | 10 1/2" | External Square | 2" | 0000000 | 000000 |
Flexible Joint Gradual On/Off Valves

- Valve Type: Gate
- For Use With: See table
- Seal Material: EPDM Rubber
- Specifications Met: See table
Flexible joints keep these valves tightly sealed during pressure changes or vibrations from heavy machinery. Also known as gate valves, they gradually open and close to prevent system damage from sudden flow changes. They have a rubber-coated gate that compresses against the valve for a long-lasting, leakproof seal. They’ll seal tightly even when installed vertically, when there’s low back pressure, or when the liquid contains solids and debris. Made of ductile iron, these valves are stronger than cast iron valves and resist cracking from pressure changes. The body is coated with epoxy to protect against corrosion. They meet at least one American Water Works Association (AWWA) standard for reliable and safe performance in water supply systems.
These valves fit well in tight spaces since the stem doesn’t rise when they open. Their flanged stem housing bolts in place for easy disassembly for maintenance and repairs. Use a valve wrench to open and close these valves. Because they require a wrench, they can’t be opened accidentally when bumped or snagged.
FM-approved valves are used in fire suppression and protection systems. They help isolate parts of water supply systems in buildings and plants.
Valves that meet NSF/ANSI 61 are safe to use with drinking water systems.
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.
For technical drawings and 3-D models, click on a part number.
O'all | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Flange OD | Bolt Circle Dia. | No. of Bolt Holes | Bolt Hole Dia. | Bolts Included | Retaining Ring Included | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | For Use With | Specifications Met | Each | |
Wrench Operated and Nonrising Stem—Red Epoxy-Coated Ductile Iron Body and Rubber-Coated Ductile Iron Gate | ||||||||||||||||
Flanged Stem Housing | ||||||||||||||||
6 | 11 1/16" | 9 1/2" | 4 | 7/8" | No | Yes | 423 | 300 psi @ 100° F | 35° to 170° | 10 1/2" | 24 1/2" | 10 1/2" | Water | AWWA C515, FM Approved, UL Listed | 0000000 | 0000000 |
6 | 11 1/16" | 9 1/2" | 4 | 7/8" | No | No | 2,250 | 300 psi @ 100° F | 33° to 180° | 11 1/2" | 22 3/4" | 11 1/2" | Water, Drinking Water | AWWA C151, AWWA C509, AWWA C515, NSF/ANSI 61 | 0000000 | 00000000 |
Gradual On/Off Valves with Push-to-Connect Fittings

- Valve Type: Gate
- For Use With: Water
- Seal Material: Buna-N Rubber
- Specifications Met: AWWA C515
For strong, permanent connections that are quick to install, push PVC pipe into these valves and a rubber ring grips it. Also known as gate valves, they open and close gradually to prevent damage to your system from sudden changes in flow. They meet AWWA (American Water Works Association) C515 for use in large-scale industrial cleaning and cooling water lines. Made of ductile iron, these valves are stronger than cast iron valves, so they resist cracking from pressure changes. The body is coated with epoxy to protect against corrosion. These valves have a rubber-coated gate, also known as a resilient wedge, that compresses against the valve for a long-lasting, leakproof seal. They'll seal tightly even when installed vertically, there's low back pressure, or the liquid contains solids and debris.
These valves fit well in tight spaces since the stem doesn’t rise when they open and they don’t have a handwheel. They’re wrench operated, which prevents them from opening accidentally when bumped or snagged. Use a valve wrench to open and close the valve with minimal effort. Their flanged stem housing, also known as a bolted bonnet, bolts in place so you can take them apart for repairs. However, the flanged stem housing makes these valves heavier and larger than valves with threaded or welded stem housings.
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.
For technical drawings and 3-D models, click on a part number.
O'all | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Stem Type | Stem Housing Connection Style | Valve Operation | Drive Style | Drive Size | Each | |
Epoxy-Coated Ductile Iron Body and Rubber-Coated Ductile Iron Gate | |||||||||||||
Push to Connect × Push to Connect | |||||||||||||
3 | 109 | 250 psi @ 72° F | -20° to 100° | 12" | 16 13/16" | 12" | Nonrising | Flanged | Wrench | External Square | 2" | 0000000 | 0000000 |
4 | 190 | 250 psi @ 72° F | -20° to 100° | 13 13/16" | 19 1/8" | 13 13/16" | Nonrising | Flanged | Wrench | External Square | 2" | 0000000 | 000000 |
6 | 427 | 250 psi @ 72° F | -20° to 100° | 16 7/8" | 25" | 16 7/8" | Nonrising | Flanged | Wrench | External Square | 2" | 0000000 | 000000 |
Threaded Balancing Valves

- Valve Type: Ball
- For Use With: Water
- Seal Material: EPDM Rubber
- Specifications Met: CSA Certified
Thread these balancing valves onto pipe—they help you measure the pressure differential across the valve as well as change the flow rate to components in your system. Sometimes called circuit setters, they’re used in HVAC systems and other systems that require even flow distribution. To see what percentage they’re open, there’s an arrow on these valves that’s connected to their measuring plate. Readout ports on both sides let you attach flow measurement tools, such as pressure gauges and probes, which help you track how much the valves reduce flow. Open these valves to a saved percentage by using their memory shutoff function.
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) | Maximum Pressure | Temperature Range, °F | End-to-End Length | Each | |
Brass Body | ||||||
---|---|---|---|---|---|---|
NPT Female × NPT Female | ||||||
1 1/4 | 12.5 | 400 psi @ 250° F | 0° to 250° | 4 7/16" | 0000000 | 0000000 |
1 1/2 | 19.9 | 400 psi @ 250° F | 0° to 250° | 4 7/16" | 0000000 | 000000 |
2 | 40 | 400 psi @ 250° F | 0° to 250° | 5 3/16" | 0000000 | 000000 |
2 1/2 | 65 | 400 psi @ 250° F | 0° to 250° | 6" | 0000000 | 000000 |
3 | 112 | 400 psi @ 250° F | 0° to 250° | 6 1/2" | 0000000 | 00000000 |
Drain Valves
Also known as stop cocks, install these valves on your tank for easy draining of air or fluid.
Valves with an internal seal have shorter stems than those with external seals, so they fit shorter clearances. However, they’re more likely to introduce contaminants to the tank from debris collected on the exposed threads.
Valves with a brass body won’t corrode when venting air or draining water—even in wet or humid environments. Valves with a ductile iron body have excellent strength and durability. However, they’re less corrosion resistant than valves with a brass body. They’re often used to connect to iron pipe.
For technical drawings and 3-D models, click on a part number.


with Built-In
Wrench
Wrench-operated valves have a cover with a built-in wrench. Remove the cover and turn the wrench to open and close the valve. Attach a tube or pipe to the outlet to route the flow of draining liquid. They have a lockable cover that prevents tampering when you add a padlock (not included). The valve can only lock when closed.
Inlet | Outlet | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Thread Type | Gender | Connection Type | Pipe Size | Thread Type | Gender | Body Material | For Use With | Features | Max. Pressure | Temp. Range, °F | Port-to-Port Lg. | For Max. Padlock Shackle Dia. | Socket Shape | Drive Size | Each | |
90° Elbow—Internal Seal | |||||||||||||||||
1 | NPT | Male | Pipe | 1 | NPT | Female | Brass | Water, Oil | Lockable Cover | 50 psi @ 125° F | -65° to 125° | 2 1/16" | 13/32" | 4-Point | 11/32" | 0000000 | 0000000 |
1 | NPT | Male | Pipe | 1 | NPT | Female | Ductile Iron | Water, Oil | Lockable Cover | 50 psi @ 125° F | -65° to 125° | 2 1/16" | 13/32" | 4-Point | 11/32" | 0000000 | 000000 |