FREE delivery on orders over €150
Product Specifications:
| Item | Pressure Relief Valve |
| Application | Hot Water Space Heating Boiler |
| Asme Section Code | Section Xiii |
| Body Material | Copper Silicon Alloy, Lead Free Copper Silicon Alloy |
| Connection Type | Fnptf x FNPTF |
| Cross Reference | 0121514 |
| Discharge Capacity | 3429000 btuH |
| Factory Set Pressure | 75 psi |
| For Media | Water |
| Inlet Connection Size | 1 1/4" |
| Inlet Connection Type | Female Threaded |
| Inlet Thread Type | NPT |
| Lead Free | Yes |
| Max. Working Pressure | 56 psi |
| Nsf Certifications | Nsf 372 |
| Operating Pressure | 30 psi to 150 psi |
| Operating Temp. | -40°F to +250°F |
| Outlet Connection Size | 1 1/4" |
| Outlet Connection Thread Type | Female Threaded |
| Outlet Thread Type | NPT |
| Overall Height | 8 1/2" |
| Overall Width | 4 1/4" |
| Pressure | 30 psi to 150 psi |
| Pressure Relief Setting | 75 psi |
| Product Type | Pressure Relief Valve |
| Series | LF174A Series |
Shipping Info:
| Ship weight (kg) | 2.43 |
| Ship height (cm) | 21.27 |
| Ship width (cm) | 12.07 |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
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 |
Explore Products
- HUB CITY ssw324-20/1-c-wr-182tc Hub City Inc SSW324-20/1-C-WR-182TC
- SIEMENS BBKQR1 Single Breaker Mounting Kit, Qr Frame Type
- APOLLO VALVES 71AR65764 Actuator Ready 2 Pcs Bronze Ball Valve with Oxygen Cleaned, Steam Trim 1-1/4 Inch Size, 2 x FNPT
- DIXON T31W-400300PM Concentric Reducer, 4 x 3 Inch Dia., 316L Stainless Steel
- RAZOR-BACK 3111000 Engineer SledgeHammer, No4, 15 Inch Fgl Handle
- DYMO dym2050764 Label, Lw, 1 x 2-1/8 Inch, 6 X500
- SMC VALVES CDQ2B40-30DZ-M9NWVSAPC Compact Cylinder, Single Acting, Single Rod, 40Mm Bore Size, 30 Mm Stroke Length
- APPLETON ELECTRIC AB50
Explore More
- DOLPHIN COMPONENTS CORP
- KEYSHAFT
- MANCOMM
- SOUNDSPHERE
- DURASPIN
- IEC Miniature Circuit Breakers
- Laminating Pouches and Film
- Electric Wire Rope Hoists
- Aquastat Relays
- Air Caulk Guns
- HELICOIL Straight Flute Plug Taps, 5H, Metric Coarse
- RUD CHAIN VLBS Weld On Blocks
- CHICAGO PNEUMATIC CP6748/68/78 Series Impact Wrenches
- TEMPCO Ceramic Band Heaters
- MUELLER INDUSTRIES 251 Ductile Iron Simplex Basket Strainers
- ELDON JAMES Elbow 90 Degree
- ALLEGRO SAFETY Respirator & Equipment Carry/Mask Bags
- 80/20 25 Series 25-2501 Single Open T-Slotted Profile Extrusions
- ROTRON 47 Frame Seal Less Vacuum Pumps, 3.9 Inch Frame Size
- PARKER CPI Metric Tube Converssion Unions, HBZ
Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
WATTS LF174A-75 1 1/4 0121514 Pressure Safety Relief Valve, 1-1/4 Inch Size, 75 psi
€3,089.32 /unit



