Specifications
Description
The Watts LFBP30 75-175 1/2 is a 1/2" lead-free calibrated adjustable pressure relief valve for pump bypass pressure control service, field-adjustable over 75-175 psi. It features a copper body. Rated to 175 psi and up to 180°F. This model is certified lead-free for potable-water installations.
This 1/2 inch bypass control relief valve is used in commercial, residential and industrial applications to regulate liquid pressure as supplied by a positive pressure pump. It is a diaphragm-operated type valve that protects equipment by opening at an adjustable range of 75 to 175 psi (5.2 to 12.1 bar) to allow excess volume to be bypassed back to the source. It consists of a lead free alloy body with NPT threaded male inlet and NPT threaded female outlet, sensitive rubber diaphragm, Buna-N disc, tee handle, a spring, and adjustment handle separated from liquid elements.
Features
- Lead free copper silicon alloy body construction
- Sensitive rubber diaphragm
- T-handle facilitates pressure change
- Adjustable opening pressure range at 45 to 100 psi
- Includes: Bypass
Common Questions
- What pressure does this relieve at?
- This is a calibrated valve — you set it. It adjusts over 75-175 psi, so it has no factory set point. Set it below the working pressure rating of the equipment you are protecting, and re-check the setting after installation.
- Can I use this on potable water?
- Yes. It is certified lead-free to NSF/ANSI 372, which is what plumbing codes require for any device in a drinking-water line.
Specifications
- Type: Relief
- Size: 1/2"
- Inlet Size: 1/2"
- Outlet Size: 1/2"
- Connection: NPT
- Body Material: Copper
- Max Pressure (psi): 175
- Pack Quantity: 12
- Country of Origin: United States
- Warranty: 1 Year Limited
- MPN: LFBP30 75-175 1/2
- Temperature: up to 180°F
- Lead-Free: Yes
- Relief Type: Calibrated Adjustable
- Adjustment Range: 75-175 psi
- Application: Pump Bypass Pressure Control
- Connection Configuration: MNPT inlet x FNPT outlet
- Approved for Potable Water: Yes
- SentryPlus Alert Flood Sensor: No
Product Information
| SKU | UPC | Country of Origin | Warranty | Spec Sheet |
|---|---|---|---|---|
| 0121401 | 098268584035 | United States | 1 Year Limited | Download |
Dimensions
| Size Nominal | 1/2" | Inlet Size | 1/2" |
| Outlet Size | 1/2" | End Connection | NPT |
Details
| Series | LFBP30 | Device Type | Relief |
| Lead Free | Yes | Body Material | Copper |
| Max Pressure PSI | 175.0 psi | Max Temp °F | 180.0 °F |
| Pack Qty | 12 | Options | Bypass |
| Relief Type | Calibrated Adjustable | Adjustable Range PSI | 75-175 psi PSI |
| Application Class | Pump Bypass Pressure Control | Connection Config | MNPT inlet x FNPT outlet |
| Potable Approved | Yes | — | — |
Compare with similar products
| Relief Type | Calibrated Adjustable
| Calibrated Adjustable
| Calibrated Adjustable
| Calibrated Adjustable
|
| Adjustable Range PSI | 75-175 psi
| 100-300 psi
| 10-50 psi
| 45-100 psi
|
| Application Class | Pump Bypass Pressure Control
| Thermal Expansion / General Service
| Pump Bypass Pressure Control
| Pump Bypass Pressure Control
|
| Connection Config | MNPT inlet x FNPT outlet
| MNPT inlet x FNPT outlet
| MNPT inlet x FNPT outlet
| MNPT inlet x FNPT outlet
|
| Potable Approved | Yes | — | Yes | Yes |
| Series | LFBP30
| 530C
| LFBP30
| LFBP30
|
| Country Of Origin | United States
| United States
| United States
| United States
|
| Warranty | 1 Year Limited
| 1 Year Limited
| 1 Year Limited
| 1 Year Limited
|
| Spec Sheet | ||||
| Device Type | Relief
| Relief
| Relief
| Relief
|
| Size Nominal | 1/2"
| 1/2"
| 1/2"
| 1/2"
|
| Inlet Size | 1/2"
| 3/4"
| 1/2"
| 1/2"
|
| Outlet Size | 1/2"
| 1/2"
| 1/2"
| 1/2"
|
| Lead Free | Yes | — | Yes | Yes |
| End Connection | NPT
| NPT
| NPT
| NPT
|
| Body Material | Copper
| Brass
| Copper
| Copper
|
| Max Pressure PSI | 175.0 psi | 300.0 psi | 50.0 psi | 100.0 psi |
| Max Temp °F | 180.0 °F | 180.0 °F | 180.0 °F | 180.0 °F |
| Pack Qty | 12
| 50
| 12
| 12
|
| Options | Bypass
| — | Bypass
| Bypass
|
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