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 |
| 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 Range | 50 psi to 150 psi |
| Operating Temperature Range | -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 |
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
- MARTIN SPROCKET E100C35 Sprocket, 100 Chain, 35 Teeth, 13.945 Inch Pitch Dia., 14.639 Inch O.D., Steel
- HONEYWELL VFF3RV1YXB/M
- HOFFMAN CSD12126EMCSS 25939 Enclosure, Wallmount, 1/4 Turn Latch, 12 x 12 x 6 Inch Size, 304 SS
- MORSE CUTTING TOOLS 85770 CounterSink, 5/8 Inch Size
- CONEX BANNINGER P5243 07667000 Fitting Reducer, 76 x 67 Inch Size
- QUANTUM STORAGE SYSTEMS CC186074CVZ Wire Cart Cover, 18 Inch D x 60 Inch W x 74 Inch H, 10 Gauge Clear-Vinyl With Zipper Flap
- BOSTON GEAR F04872
- VOLKEL 93809 Machine Tap Without Oil Groove, JIS B-4430/ HSSE, UNC No. 10 x 24 Size
Explore More
- BATTERY DOCTOR
- K-FLEX USA
- KEYSHAFT
- POWR-GRIP
- MORSE DRUM
- Float Switches
- Cable Pull Switch Accessories
- Limit Switch Receptacle
- Open End Wrench Sets
- Adjustable Wrench Sets
- REVCOR Propeller, 14 inch
- IRONCLAD Kong Cut Resistant Gloves
- COTTERMAN F Series Steel Fixed Ladders
- FERNCO Flexible Tap Saddles, Tees & Wyes
- KLEIN TOOLS Gooseneck Camera
- GENERAL PIPE CLEANERS Connecting Screws
- BEA Transmitters
- RUD CHAIN PSA Starpoint Eye Bolts, Metric Thread
- RULAND MANUFACTURING JC Series Jaw Coupling Hubs, Clamp Style
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-150 3/4 0121484 Pressure Safety Relief Valve, 3/4 Inch Size, 150 PSI, Copper Silicon Alloy
€406.34 /unit





