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Product Specifications:
| Item | Pressure Relief Valve |
| Application | Hot Water Space Heating Boiler |
| Asme Section Code | Section Xiii |
| Body Material | Copper Silicon Alloy |
| Connection Type | Fnptf x FNPTF |
| Discharge Capacity | 2445000 btuH |
| Factory Set Pressure | 150 psi |
| For Media | Water |
| Inlet Connection Size | 3/4" |
| Nsf Certifications | Nsf 372 |
| Operating Pressure | 50 psi to 150 psi |
| Operating Temp. | -40°F to +250°F |
| Outlet Connection Size | 3/4" |
| Overall Height | 4 1/2" |
| Overall Width | 2 3/4" |
| Product Type | Pressure Relief Valve |
Shipping Info:
| Ship weight (kg) | 0.59 |
| Ship height (cm) | 11.43 |
| Ship width (cm) | 6.99 |
| Country of Origin | US |
Product Variants
| Product | Model | Inlet Connection Size | Pressure | Inlet Thread Type | Inlet Connection Type | Lead Free | Outlet Connection Size | Outlet Thread Type | Series | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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174-Z3-T 075 | - | 30 psi to 150 psi | NPT | Female Threaded | - | - | - | - | €669.28 | |
![]() |
LFN30 5-30 1/2 | 1/2" | 5 psi to 30 psi | NPT | Male Threaded | Yes | - | FPT | - | €572.24 | |
![]() |
LFF116-23 0-30 1 1/4 | - | - | - | - | - | - | - | - | €3,442.43 | RFQ
|
![]() |
LF174A-125 1 | 1" | 50 psi to 150 psi | NPT | Female Threaded | Yes | 1" | NPT | LF174A Series | €1,331.26 | |
![]() |
LF174A-75 1 | 1" | 30 psi to 150 psi | NPT | Female Threaded | Yes | 1" | NPT | LF174A Series | €1,648.19 | |
![]() |
LF174A-100 1 1/4 | 1 1/4" | 30 psi to 150 psi | NPT | Female Threaded | Yes | 1 1/4" | NPT | LF174A Series | €2,193.64 | |
![]() |
LF174A-125 1 1/4 | 1 1/4" | 30 psi to 150 psi | NPT | Female Threaded | Yes | 1 1/4" | NPT | LF174A Series | €1,895.84 |
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WATTS LF174A-150 3/4 0121484 Pressure Safety Relief Valve, 3/4 Inch Size, 150 PSI, Copper Silicon Alloy
€406.34 /unit



