About On/Off Valves
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Plastic Noncontact Flow-Adjustment Valves
With no metal parts, these valves are often used for noncontact flow adjustment in wet conditions and harsh environments. Also known as pinch valves, they press down on the outside of tubing to adjust flow without contacting the process media. They can be used with any media that’s chemically compatible with your tubing.
Valves with a closed body securely hold tubing in place.
Valves with an open body provide easy access to tubing for maintenance or replacement.
Dial handles are marked with a 1 to 10 mm scale that allows you to make repeatable adjustments.
Tabs have flow-adjustment notches that allow you to lock in adjustments.
| For Tube OD | Temp. Range, °F | For Max. Tube Hardness | Pkg. Qty. | Pkg. | |
Acetal Plastic Body  | |||||
|---|---|---|---|---|---|
| 1/32" - 1/2" | 35° to 140° | Not Rated | 1 | 0000000 | 00000 |
| For Tube OD | Body Style | Temp. Range, °F | For Max. Tube Hardness | Pkg. Qty. | Pkg. | |
Acetal & Nylon Plastic Body | ||||||
|---|---|---|---|---|---|---|
| 3/32" - 1/2" | Closed | 35° to 140° | Durometer 60A | 1 | 0000000 | 000000 |
| For Tube OD | Body Style | Temp. Range, °F | For Max. Tube Hardness | Pkg. Qty. | Pkg. | |
Acetal & Nylon Plastic Body | ||||||
|---|---|---|---|---|---|---|
| 3/32" - 1/4" | Open | 35° to 140° | Durometer 60A | 1 | 0000000 | 00000 |
Noncontact Flow-Adjustment Valves
Also known as pinch valves, these press down on the outside of tubing to adjust flow without contacting the process media. They can be used with any media that’s chemically compatible with your tubing.
Nickel-plated brass valves are more corrosion resistant than zinc or zinc-plated steel valves.
Valves with an open body provide easy access to tubing for maintenance or replacement.
Valves with a closed body securely hold tubing in place.
| For Tube OD | Body Style | Temp. Range, °F | For Max. Tube Hardness | Each | |
| 3/32" - 3/4" | Closed | -100° to 500° | Durometer 50A | 0000000 | 000000 |
Panel-Mount Noncontact Flow-Adjustment Valves
For installation in instrument panels, these valves have a hex nut and threads below the handle. Also known as pinch valves, they press down on the outside of tubing to adjust flow without contacting the process media. Valves can be used with any media that’s chemically compatible with your tubing.
| For Tube OD | Body Style | Panel Cutout Dia. | For Max. Tube Hardness | Each | |
Nickel-Plated Brass Body | |||||
|---|---|---|---|---|---|
| 1/4" | Closed | 1/2" | Durometer 60A | 0000000 | 000000 |
Noncontact On/Off Valves
Also known as pinch valves, these valves stop flow by squeezing tubing from the outside. Since they don’t directly contact your fluid, they’re good for applications where you need to prevent contamination. Install these valves in instrument panels—the body is sized to fit standard cutouts. It’s a closed body, so it surrounds the tubing for a secure hold. Once these valves are installed, their toggle switch sticks out of the panel, so you can quickly start or stop the flow without exposing your line. They can be used with any media that’s chemically compatible with your tubing.
| For Tube OD | Body Style | Return Actuation | End-to-End Lg. | Panel Cutout Dia. | For Max. Tube Hardness | Each | |
Nickel-Plated Brass Body | |||||||
|---|---|---|---|---|---|---|---|
| 1/8" | Closed | Manual | 1 1/16" | 15/32" | Durometer 60A | 00000000 | 000000 |