About On/Off Valves
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On/Off Valves with Barbed Fittings for Chemicals
Barbs grip onto tubing, providing a secure hold. To withstand aggressive and corrosive solutions in chemical-processing applications, these valves have a plastic body and a chemical-resistant seal.
PVC valves are standard for most chemical processing applications.
Lever handles show the valve’s position.Valves with tapered barbs can be used with multiple tube sizes.
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.
- Valve Type: Ball
- For Use With: Ammonia, Citric Acid, Deionized Water, Ethanol, Ethylene Glycol, Isopropyl Alcohol, Phosphoric Acid, Salt Water, Soap Solutions, Sodium Hydroxide
- Ball Material: PVC Plastic
- Seal Material: EPDM Rubber
- Seat Material: EPDM Rubber
| For Tube ID | Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Temperature Range, °F | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Each | |
Tapered Barbed × Tapered Barbed | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3/8", 1/2", 5/8" | __ | 1.6 | 150 psi @ 70° F | 35° to 120° | 29.9 | Standard | 4 3/8" | 00000000 | 000000 |
Tapered Barbed × NPT Male | |||||||||
| 3/8", 1/2", 5/8" | 1/4 | 1.6 | 150 psi @ 70° F | 35° to 120° | 29.9 | Standard | 3 1/2" | 00000000 | 00000 |
Compact Threaded On/Off Valves for Chemicals
For chemical-processing applications in confined areas, these valves have a low-profile handle to fit in tight spots. A rubber seal and a plastic body stand up to aggressive, corrosive solutions.
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: Stop Cock
- For Use With: Ammonia, Carbon Dioxide, Ethylene Glycol, Hydrochloric Acid, Isopropyl Alcohol, Liquid Carbon Dioxide, Phosphoric Acid, Sodium Hydroxide, Water
- Seal Material: EPDM Rubber
Laboratory Valves
Styles A and B come with three interchangeable, color-coded identification buttons: orange for air, blue for gas, and yellow for vacuum.
Valve | Max. | Inlet | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Function | Type | Lg. | Ht. | Air Pressure, psi | Vacuum, in. of Hg | Gas Pressure, psi | Pipe Size | Thread Type | Gender | Outlet Hose Connection Type | For Hose ID | Each | |
For Air and Gas | ||||||||||||||
Chrome-Plated Brass | ||||||||||||||
| A | On/Off | Stop Cock | 3 7/8" | 1 1/2" | 125 | 30 | 0.5 | 3/8 | NPT | Male | Barbed | 1/4"-3/8" | 0000000 | 000000 |
| B | Flow Adjustment | Needle | 3 7/8" | 2 3/4" | 125 | Not Rated | 125 | 3/8 | NPT | Male | Barbed | 1/4"-3/8" | 0000000 | 00000 |
Valve | Inlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Function | Type | Lg. | Ht. | Max. Water Pressure, psi | Pipe Size | Thread Type | Gender | Outlet Hose Connection Type | For Hose ID | Each | |
For Water | ||||||||||||
Chrome-Plated Brass | ||||||||||||
| C | Flow Adjustment | Needle | 5 3/8" | 3 3/8" | 125 | 3/8 | NPT | Male | Barbed | 1/4"-1/2" | 0000000 | 0000000 |
Laboratory Nozzles
Laboratory Flanges and Turrets
Provide a connection for stop cocks, needle valves, and nozzles by attaching these flanges and turrets to your supply pipe.
Inlet | Outlet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Outlets | Outlet Angle | Dia. | Ht. | Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Each | ||
For Air, Gas, and Water | ||||||||||||
Chrome-Plated Brass | ||||||||||||
| A | 1 | __ | 2" | 1 1/8" | 3/8 | NPT | Female | 3/8 | NPT | Female | 0000000 | 000000 |
| B | 2 | __ | 1 7/8" | 1 1/2" | 3/8 | NPT | Female | 3/8 | NPT | Female | 0000000 | 00000 |
| C | 1 | __ | 2" | 2" | 3/8 | NPT | Female | 3/8 | NPT | Female | 0000000 | 00000 |
| D | 2 | 90° | 2" | 2" | 3/8 | NPT | Female | 3/8 | NPT | Female | 0000000 | 00000 |
| E | 2 | 180° | 2" | 2" | 3/8 | NPT | Female | 3/8 | NPT | Female | 0000000 | 00000 |