Drain Valves
Also known as stop cocks, install these valves on your tank for easy draining of air or fluid.
Inline handles can be operated from any position. The handle surrounds the drain outlet, so liquids may splash onto your hands or the handle. Side handles are out of the way of the flow, so your hand and the handle stay dry.
Valves with an external seal are for higher flow applications than valves with an internal seal. They also have a longer valve stem, so they’re less likely to introduce contaminants from exposed threads. 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.
Brass handles won’t corrode. Plastic handles resist oil, grease, and solvents. They’re lighter in weight than brass handles.
Valves with a thumb-screw handle open by rolling the slip-resistant thumb screw between your fingers. Since these valves don’t have a wide handle, they fit in tighter spaces than valves with other handle styles.
Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Thread Type | Gender | Outlet Connection Type | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—External Seal | |||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | Brass | Brass | Air, Water, Inert Gas | 100 psi @ 250° F | -65° to 250° | 3/4" | 0000000 | 00000 |
| 1/4 | NPT | Male | Unthreaded Hole | Brass | Brass | Air | 250 psi @ 250° F | -40° to 250° | 1 1/8" | 0000000 | 0000 |
Valves with a wing-nut handle give you leverage to open tight, stubborn valves that have been sealed for long periods of time. The wings on these handles face inward, so they have a lower profile than handles with outlet-facing wing nuts.
Valves with a tube outlet can be attached to a tube or hose to route the flow of draining liquid.
Inlet | Outlet | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Connection Type | For Tube ID | Tube Connection Type | Gender | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—External Seal | ||||||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 15/16" | 0000000 | 00000 |
| 1/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 7/8" | 0000000 | 0000 |
| 1/4 | NPT | Male | Tube | 3/8" | Barbed | Male | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 9/16" | 0000000 | 0000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | __ | Steel | Brass | Water, Oil | 150 psi @ 250° F | -40° to 350° | 1" | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 1/4" | 0000000 | 0000 |
| 1/2 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 1/2" | 0000000 | 00000 |
Straight—Internal Seal | ||||||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 5/16" | 0000000 | 00000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 15/16" | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 1/4" | 0000000 | 0000 |
Valves with a wing-nut handle give you leverage to open tight, stubborn valves that have been sealed for long periods of time. The wings on these handles face outward, so they fit tanks without enough clearance around the drain hole to fit handles with inlet-facing wings.
A spout outlet smoothly pours any draining liquid into buckets without splashing.
Inlet | Outlet | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Connection Type | For Tube ID | Tube Connection Type | Gender | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—External Seal | ||||||||||||||
| 1/8 | NPT | Male | Tube | 1/4" | Barbed | Male | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 1/2" | 0000000 | 00000 |
| 1/4 | NPT | Male | Spout | __ | __ | __ | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 1 1/2" | 0000000 | 0000 |
| 1/4 | NPT | Male | Unthreaded Hole | __ | __ | __ | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 1" | 0000000 | 0000 |
| 3/8 | NPT | Male | Unthreaded Hole | __ | __ | __ | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 1 1/4" | 0000000 | 0000 |
Valves with a wing-nut handle give you leverage to open tight, stubborn valves that have been sealed for long periods of time. The wings on these handles face inward, so they have a lower profile than outlet-facing wing nuts. A spout smoothly pours any draining liquid into buckets without splashing.
Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Outlet Connection Type | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Port-to-Port Lg. | Each | |
90° Elbow—External Seal | |||||||||||
| 1/4 | NPT | Male | Spout | Steel | Brass | Air, Water, Oil, Inert Gas | 150 psi @ 250° F | -65° to 250° | 11/16" | 0000000 | 00000 |
Valves with a T-handle have two flat arms that provide more leverage and torque than thumb-screw handles and are more comfortable to grip than wing-nut handles. They have a removable handle, which can be disassembled for cleaning.
Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Outlet Connection Type | Handle Material | Body Material | For Use With | Features | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—Internal Seal | ||||||||||||
| 1/8 | NPT | Male | Unthreaded Hole | Brass | Brass | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 9/16" | 000000 | 000000 |
| 1/4 | NPT | Male | Unthreaded Hole | Brass | Brass | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 11/16" | 000000 | 00000 |
| 3/8 | NPT | Male | Unthreaded Hole | Brass | Brass | Water, Oil, Inert Gas | Removable Handle | 150 psi @ 250° F | -65° to 250° | 1 13/16" | 000000 | 00000 |
Valves with a T-handle have two flat arms that provide more leverage and torque than thumb-screw handles and are more comfortable to grip than wing-nut handles.
Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Outlet Connection Type | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Wd. | Each | |
Straight—Internal Seal | ||||||||||||
| 1/4 | NPT | Male | Unthreaded Hole | Brass | Brass | Water, Oil | 150 psi @ 250° F | -65° to 250° | 1 3/4" | 1 7/16" | 0000000 | 000000 |
Valves with a lever handle open the quickest—just rotate them 90°. However, they provide less control than handles that take multiple turns to open. A glance at the handle will tell you if it’s open or closed. Attach a tube or hose to the outlet to route the flow of draining liquid. Use the included cap to keep dirt and debris out of the valve.
Inlet | Outlet | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Connection Type | For Tube ID | Tube Connection Type | Gender | Handle Material | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Includes | Each | |
Straight—Internal Seal | |||||||||||||||
| 1/4 | NPT | Male | Tube | 3/4" | Compression | Male | Plastic | Brass | Air, Water, Oil | Not Rated | Not Rated | 1 15/16" | Brass Cap | 0000000 | 000000 |
| 1/2 | NPT | Male | Tube | 3/4" | Compression | Male | Plastic | Brass | Air, Water, Oil | Not Rated | Not Rated | 2 1/16" | Brass Cap | 0000000 | 00000 |
Cable-pull valves open with a tug. Open them from any angle and at a distance to prevent injury from hot air. They work well in tight and hard-to-reach spots, such as under low-sitting tanks.
Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cable Lg., ft. | Pipe Size | Thread Type | Gender | Outlet Connection Type | Body Material | For Use With | Max. Pressure | Temp. Range, °F | Ht. | Each | |
Straight—Internal Seal | |||||||||||
| 1 1/2 | 1/4 | NPT | Male | Unthreaded Hole | Brass | Air | 250 psi @ 250° F | -40° to 250° | 1 1/4" | 00000000 | 00000 |
| 3 | 1/4 | NPT | Male | Unthreaded Hole | Brass | Air | 250 psi @ 250° F | -40° to 250° | 1 1/4" | 00000000 | 0000 |
| 4 | 1/4 | NPT | Male | Unthreaded Hole | Brass | Air | 150 psi @ 250° F | -65° to 250° | 1 7/8" | 00000000 | 00000 |
| 5 | 1/4 | NPT | Male | Unthreaded Hole | Brass | Air | 250 psi @ 250° F | -40° to 250° | 1 1/4" | 00000000 | 0000 |
High-Temperature Drain Valves
Empty fluid from tanks in boiler rooms or heat transfer systems—these valves withstand higher temperatures than our other drain valves. Also known as stop cocks, their handle twists open to let liquid flow out. They have a spout that smoothly pours the draining liquid into buckets without splashing. The handle is positioned to be out of the way from the spout, so your hand stays dry.
Plastic handles have a knurled grip that’s comfortable and won’t slip as you turn it.
Stainless steel seals resist corroding better than brass seals. PTFE seals create a tighter seal than brass and stainless steel seals.
Inlet | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Outlet Connection Type | For Use With | Max. Pressure | Temp. Range, °F | Port-to-Port Lg. | Body Material | Each | |
Plastic Handle | ||||||||||
Brass Seal | ||||||||||
| 1/2 | NPT | Male | Spout | Water, Oil | 250 psi @ 400° F | 32° to 400° | 1" | Brass | 0000000 | 000000 |
| 3/4 | NPT | Male | Spout | Water, Oil | 250 psi @ 400° F | 32° to 400° | 1" | Brass | 000000 | 00000 |
Stainless Steel Seal | ||||||||||
| 1/2 | NPT | Male | Spout | Water, Oil | 250 psi @ 400° F | 32° to 400° | 1" | Brass | 0000000 | 00000 |
PTFE Seal | ||||||||||
| 1/2 | NPT | Male | Spout | Water, Oil | 250 psi @ 400° F | 32° to 400° | 1 1/4" | Brass | 0000000 | 000000 |