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About Backflow-Prevention Valves
More
Pipeline Fluid Blockers
Also known as paddle blinds, these fit between two flanges to temporarily block the flow while you work downstream.
304 stainless steel blinds are more corrosion resistant than steel blinds.
For technical drawings and 3-D models, click on a part number.
Steel
- Specifications Met: ASTM A36
Handle | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Pipe Size | OD | For Orifice Flange ANSI Class | Max. Pressure | Thick. | Lg. | Wd. | Temp. Range, °F | Each | |
| 1/2 | 1 3/4" | 150 | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 000000 |
| 3/4 | 2 1/8" | 150 | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 1 | 2 1/2" | __ | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 1 1/4 | 2 7/8" | 150 | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 1 1/2 | 3 1/4" | __ | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 2 | 4" | __ | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 2 1/2 | 4 3/4" | __ | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 3 | 5 1/4" | __ | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 3 1/2 | 6 1/4" | 150 | 150 psi @ 70° F | 3/8" | 7" | 1" | -20° to 100° | 0000000 | 000000 |
| 4 | 6 3/4" | __ | 150 psi @ 70° F | 1/4" | 7" | 1" | -20° to 100° | 0000000 | 00000 |
| 6 | 8 5/8" | __ | 150 psi @ 70° F | 1/2" | 7" | 1" | -20° to 100° | 0000000 | 000000 |
| 8 | 10 7/8" | __ | 150 psi @ 70° F | 5/8" | 7" | 1" | -20° to 100° | 0000000 | 000000 |
| 10 | 13 1/4" | __ | 150 psi @ 70° F | 5/8" | 7" | 1 1/2" | -20° to 100° | 0000000 | 000000 |
| 12 | 16" | __ | 150 psi @ 70° F | 3/4" | 7" | 1 1/2" | -20° to 100° | 0000000 | 000000 |
PTFE-Coated 304 Stainless Steel
- Specifications Met: ASTM D4894, FDA Compliant 21 CFR 177.1550
Handle | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Pipe Size | OD | For Orifice Flange ANSI Class | Max. Pressure | Thick. | Lg. | Wd. | Temp. Range, °F | Each | |
| 1/2 | 1 7/8" | 150 | 150 psi @ 250° F | 1/8" | 2" | 3/4" | -100° to 400° | 0000000 | 000000 |
| 3/4 | 2 1/4" | 150 | 150 psi @ 250° F | 1/8" | 2" | 3/4" | -100° to 400° | 0000000 | 00000 |
| 1 | 2 5/8" | 150 | 150 psi @ 70° F | 1/8" | 2 3/4" | 3/4" | -100° to 400° | 0000000 | 00000 |
| 1 1/2 | 3 3/8" | 150 | 150 psi @ 70° F | 1/8" | 2 3/4" | 3/4" | -100° to 400° | 0000000 | 00000 |
| 2 | 4 1/8" | 150 | 150 psi @ 70° F | 1/8" | 3" | 3/4" | -100° to 400° | 0000000 | 00000 |
| 3 | 5 3/8" | 150 | 150 psi @ 70° F | 1/8" | 3" | 3/4" | -100° to 400° | 0000000 | 00000 |
| 4 | 6 7/8" | 150 | 150 psi @ 70° F | 1/8" | 3" | 3/4" | -100° to 400° | 0000000 | 00000 |
| 6 | 8 3/4" | 150 | 150 psi @ 70° F | 3/16" | 5" | 3/4" | -100° to 400° | 0000000 | 000000 |