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 |
| Buy American Act Compliant | Yes |
| Connection Type | Fnptf x FNPTF |
| Cross Reference | 0121524 |
| Discharge Capacity | 5370000 btuH |
| Factory Set Pressure | 125 psi |
| For Media | Water |
| Inlet Connection Size | 1 1/4" |
| Inlet Connection Type | Female Threaded |
| Inlet Thread Type | NPT |
| Lead Free | Yes |
| Maximum Working Pressure | 94 psi |
| Nsf Certifications | Nsf 372 |
| Operating Pressure Range | 30 psi to 150 psi |
| Operating Temperature Range | -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 Range | 30 psi to 150 psi |
| Pressure Relief Setting | 125 psi |
| Product Datasheet | watts-lf174a-110-2.pdf |
| 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 |
Documentation:
Product Variants
| Product | Model | Factory Set Pressure | Overall Height | Inlet Connection Size | Connection Type | Outlet Connection Size | Discharge Capacity | Pressure Range | Inlet Thread Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
740-075 1 | 75 psi | 7 1/4" | 1" | Fnptf x FNPTF | - | 2649000 btuH | 30 psi to 75 psi | NPT | - | RFQ
|
![]() |
174-Z3-T 075 | - | - | - | - | - | 2055000 btuH | 30 psi to 150 psi | NPT | €669.28 | |
![]() |
LFN30 5-30 1/2 | - | - | 1/2" | - | - | - | 5 psi to 30 psi | NPT | €572.24 | |
![]() |
LFF116-23 0-30 1 1/4 | - | - | - | - | - | - | - | - | €3,442.43 | RFQ
|
![]() |
LF174A-100 1 | 100 psi | 5 3/4" | 1" | Fnptf x FNPTF | 1" | 2635000 btuH | 50 psi to 150 psi | NPT | €1,536.97 | |
![]() |
LF174A-125 1 | - | - | 1" | - | 1" | - | 50 psi to 150 psi | NPT | €1,331.26 | |
![]() |
LF140S3 150-210 1 | 150 psi | - | 1" | Fnptf x FNPTF | 1" | 3085000 btuH | - | - | €1,473.39 |
Explore Products
- ADVANCE TABCO PLD-3036 Liquor Bottle Display Unit, 36 X 30 X 36 Inch Size, 45 Bottle Cap., Ss
- APOLLO VALVES 70104A6 Ball Valve, 3/4, Bronze, With Hose End
- DYNABRADE 53742 Housing for Model 52719, 12,000 RPM, Housing Assembly
- ADAPT-ALL 9500-04 Sealing Washer, Steel, 0.81 In O.D., 0.54 In I.D., 2/25 In Thk.
- NIBCO CE01480 6607 Elbow, 90 Deg, S x S, 6 Inch Size, PVDF, Natural
- QUANTUM STORAGE SYSTEMS WRS4-54-1836SS Solid Shelving, Starter Unit, 4 Shelves, 18 x 36 x 54 Inch Size, Stainless Steel
- MAIN FILTER INC. MF0258078 Interchange Hydraulic Filter, Glass, 10 Micron Rating, Viton Seal, 9.13 Inch Height
- APPROVED VENDOR SF206AL Drill Bushing Type Slip Fixed Drill Size # 70
Explore More
- JACOBS CHUCK
- KEYSHAFT
- KMC CONTROLS
- CMI
- GEARENCH
- Medium Voltage Fuses
- Rubber Rolls
- Security Carts
- Wiring Duct
- Neoprene Tubing
- VIBCO BB Series Pneumatic Ball Vibrators
- ACME ELECTRIC WI750 Series Medium Voltage Transformers, 3 Phase, 60Hz, 2.5kV & 5kV Class
- GLOBE SCIENTIFIC Label Sheets, Cryo, 67 x 25 mm Size
- ANVIL AS300S Series Channel With Long Slots
- GLOBE SCIENTIFIC Flange Plug Caps, For 16mm Tubes
- GROTE Pigtails
- DIXON Grommets
- BULLARD PAPR Breathing Tubes
- JB INDUSTRIES Access Valves With Copper 90 Degree Elbows
- STARRETT 99178 Series Intenss PRO-DIE Bi-Metal Band Saw Blade
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-125 1 1/4 0121524 Pressure Safety Relief Valve, 1-1/4 Inch Size, 125 psi
€1,895.84 /unit





