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    Valves / Pressure Relief Valve

    Radwell is not an authorised distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorisation by any rights holder.

    Rockwell Disclaimer: The product is used surplus. Radwell is not an authorised surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorised dealers. Because Radwell is not an authorised distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Radwell makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Radwell also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Radwell also makes no representations as to your right to install any such firmware on the product. Radwell will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

    Filter Results
    42 Results.
    NEPTUNE RV-316-100

    NEPTUNE

    RV-316-100

    1" 316SS RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    ✓ IN STOCK!
    £1,129.75 Price with VAT: £1,355.70 Buy Surplus As Low As £677.85 Price with VAT: £813.42
    £677.85 Price with VAT: £813.42
    NEPTUNE 14010-2100

    NEPTUNE

    14010-2100

    DISCONTINUED BY MANUFACTURER, BACK PRESSURE VALVE, 50 PSI, STEEL, 1/2"
    ✓ IN STOCK!
    Buy Surplus As Low As £27.54 Price with VAT: £33.05
    £27.54 Price with VAT: £33.05
    NEPTUNE RV-316-150

    NEPTUNE

    RV-316-150

    11/2" 316SS RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £2,338.85 Price with VAT: £2,806.62 Buy Surplus As Low As £1,403.31 Price with VAT: £1,683.97
    £1,403.31 Price with VAT: £1,683.97
    NEPTUNE RV-316-3

    NEPTUNE

    RV-316-3

    RELIEF VALVE, 1/2IN, 316SS, 401-1000 PSI SET PRESSURE, PLEASE SPECIFY AT TIME OF ORDER WHAT THE FACTORY SET PRESSURE SHOULD BE FOR SHIPPING
    £522.06 Price with VAT: £626.47 Buy Surplus As Low As £313.69 Price with VAT: £376.43
    £313.69 Price with VAT: £376.43
    NEPTUNE RV-C20-2

    NEPTUNE

    RV-C20-2

    1/2" C-20 RELIEF VALVE, 101-400 PSI SET PRESSURE.
    £1,252.17 Price with VAT: £1,502.61 Buy Surplus As Low As £751.91 Price with VAT: £902.29
    £751.91 Price with VAT: £902.29
    NEPTUNE RV-C20-75

    NEPTUNE

    RV-C20-75

    3/4" C20 RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £1,493.99 Price with VAT: £1,792.79 Buy Surplus As Low As £897.00 Price with VAT: £1,076.40
    £897.00 Price with VAT: £1,076.40
    NEPTUNE RV-KY

    NEPTUNE

    RV-KY

    1/2" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £725.46 Price with VAT: £870.55 Buy Surplus As Low As £435.28 Price with VAT: £522.33
    £435.28 Price with VAT: £522.33
    NEPTUNE RV-KY-100

    NEPTUNE

    RV-KY-100

    1" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £1,195.50 Price with VAT: £1,434.59 Buy Surplus As Low As £717.90 Price with VAT: £861.48
    £717.90 Price with VAT: £861.48
    NEPTUNE RV-PVC-150

    NEPTUNE

    RV-PVC-150

    11/2" PVC RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £1,292.98 Price with VAT: £1,551.57 Buy Surplus As Low As £776.09 Price with VAT: £931.31
    £776.09 Price with VAT: £931.31
    NEPTUNE RV-PVC-75

    NEPTUNE

    RV-PVC-75

    3/4" PVC RELIEF VALVE, TEFLON DIAPHRAGM, 125PSI SET PRESSURE
    £494.22 Price with VAT: £593.06 Buy Surplus As Low As £296.98 Price with VAT: £356.38
    £296.98 Price with VAT: £356.38
    NEPTUNE BP-CPVC

    NEPTUNE

    BP-CPVC

    1/2" CPVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £334.77 Price with VAT: £401.72 Buy Surplus As Low As £201.01 Price with VAT: £241.22
    £201.01 Price with VAT: £241.22
    NEPTUNE BP-CPVC-75

    NEPTUNE

    BP-CPVC-75

    3/4" CPVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £514.62 Price with VAT: £617.55 Buy Surplus As Low As £309.08 Price with VAT: £370.89
    £309.08 Price with VAT: £370.89
    NEPTUNE BP-KY

    NEPTUNE

    BP-KY

    1/2" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £709.59 Price with VAT: £851.51 Buy Surplus As Low As £426.21 Price with VAT: £511.45
    £426.21 Price with VAT: £511.45
    NEPTUNE BP-KY-100

    NEPTUNE

    BP-KY-100

    1" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,147.89 Price with VAT: £1,377.46 Buy Surplus As Low As £689.19 Price with VAT: £827.02
    £689.19 Price with VAT: £827.02
    NEPTUNE BP-PVC-150

    NEPTUNE

    BP-PVC-150

    11/2" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £1,292.22 Price with VAT: £1,550.67 Buy Surplus As Low As £775.33 Price with VAT: £930.40
    £775.33 Price with VAT: £930.40
    NEPTUNE BP-PVC-75

    NEPTUNE

    BP-PVC-75

    3/4" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £464.75 Price with VAT: £557.70 Buy Surplus As Low As £278.85 Price with VAT: £334.62
    £278.85 Price with VAT: £334.62
    NEPTUNE BP-SS-100

    NEPTUNE

    BP-SS-100

    1" 316SS BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,043.60 Price with VAT: £1,252.32 Buy Surplus As Low As £626.46 Price with VAT: £751.76
    £626.46 Price with VAT: £751.76
    NEPTUNE RV-PVC-050

    NEPTUNE

    RV-PVC-050

    PRESSURE RELIEF VALVE, 1/2 INCH, 12.7 MM, 0 - 150 PSI, 10.3 BAR, PVC, TFE DIAPHRAM
    £553.77 Price with VAT: £664.53 Buy Surplus As Low As £316.75 Price with VAT: £380.09
    £316.75 Price with VAT: £380.09
    NEPTUNE PS

    NEPTUNE

    PS

    OPTION TO MOUNT RELIEF VALVE AND PIPE RETURN USING SS TUBING.
    £825.96 Price with VAT: £991.16 Buy Surplus As Low As £495.73 Price with VAT: £594.88
    £495.73 Price with VAT: £594.88
    NEPTUNE RV-316-1 100PSI

    NEPTUNE

    RV-316-1 100PSI

    RELIEF VALVE, 1/2 INCH, 316SS, 100 PSI VERSION
    £305.30 Price with VAT: £366.36 Buy Surplus As Low As £183.63 Price with VAT: £220.36
    £183.63 Price with VAT: £220.36
    NEPTUNE RV-316-1-75

    NEPTUNE

    RV-316-1-75

    RELIEF VALVE, 30-100 PSI, 316SS, 3.0 GPM, LIQUID SERVICE ONLY
    £317.39 Price with VAT: £380.87 Buy Surplus As Low As £190.43 Price with VAT: £228.52
    £190.43 Price with VAT: £228.52
    NEPTUNE RV-316-1

    NEPTUNE

    RV-316-1

    RELIEF VALVE, 1/2 INCH, 316SS, 30-100 PSI, SET PRESSURE
    £516.89 Price with VAT: £620.27 Buy Surplus As Low As £310.59 Price with VAT: £372.70
    £310.59 Price with VAT: £372.70
    NEPTUNE RV-316-4

    NEPTUNE

    RV-316-4

    1/2" 316SS RELIEF VALVE, 1001-2000 PSI SET PRESSURE.
    £516.89 Price with VAT: £620.27 Buy Surplus As Low As £310.59 Price with VAT: £372.70
    £310.59 Price with VAT: £372.70
    NEPTUNE RV-316-75

    NEPTUNE

    RV-316-75

    PRESSURE RELIEF VALVE, 3/4 INCH, 316 STAINLESS STEEL, TEFLON DIAPHRAGM
    £844.34 Price with VAT: £1,013.21 Buy Surplus As Low As £383.16 Price with VAT: £459.79
    £383.16 Price with VAT: £459.79
    Repair Yours £333.92 Price with VAT: £400.70
    NEPTUNE RV-BR

    NEPTUNE

    RV-BR

    1/2" PVC RELIEF VALVE (SET AT 50 PSI) PLUS REQUIRED PARTS TO ROUTE DISCHARGE INCLUDING 4 FT. NYLON BRAIDED PVC HOSE, 1/2" PVC NIPPLE, 1/2" PVC ELBOW/HOSE ADAPTER AND STAINLESS STEEL CLAMP
    £287.16 Price with VAT: £344.59 Buy Surplus As Low As £172.30 Price with VAT: £206.76
    £172.30 Price with VAT: £206.76
    NEPTUNE RV-C20-1

    NEPTUNE

    RV-C20-1

    1/2" C-20 RELIEF VALVE, 30-100 PSI SET PRESSURE.
    £1,252.17 Price with VAT: £1,502.61 Buy Surplus As Low As £751.91 Price with VAT: £902.29
    £751.91 Price with VAT: £902.29
    NEPTUNE RV-C20-100

    NEPTUNE

    RV-C20-100

    1" C20 RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £2,209.63 Price with VAT: £2,651.55 Buy Surplus As Low As £1,326.23 Price with VAT: £1,591.47
    £1,326.23 Price with VAT: £1,591.47
    NEPTUNE RV-KY-150

    NEPTUNE

    RV-KY-150

    11/2" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £2,863.29 Price with VAT: £3,435.95 Buy Surplus As Low As £1,718.43 Price with VAT: £2,062.12
    £1,718.43 Price with VAT: £2,062.12
    NEPTUNE RV-KY-75

    NEPTUNE

    RV-KY-75

    3/4" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £965.77 Price with VAT: £1,158.92 Buy Surplus As Low As £579.61 Price with VAT: £695.53
    £579.61 Price with VAT: £695.53
    NEPTUNE RV-PVC

    NEPTUNE

    RV-PVC

    1/2" PVC RELIEF VALVE, PRESSURES TO 150 PSI.
    £307.56 Price with VAT: £369.08 Buy Surplus As Low As £185.14 Price with VAT: £222.17
    £185.14 Price with VAT: £222.17
    NEPTUNE RV-PVC-100

    NEPTUNE

    RV-PVC-100

    1" PVC RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £643.09 Price with VAT: £771.71 Buy Surplus As Low As £386.16 Price with VAT: £463.39
    £386.16 Price with VAT: £463.39
    NEPTUNE BP-C20

    NEPTUNE

    BP-C20

    1/2" C20 BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,320.18 Price with VAT: £1,584.22 Buy Surplus As Low As £792.71 Price with VAT: £951.26
    £792.71 Price with VAT: £951.26
    NEPTUNE BP-C20-100

    NEPTUNE

    BP-C20-100

    1" C20 BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £2,112.90 Price with VAT: £2,535.48 Buy Surplus As Low As £1,268.04 Price with VAT: £1,521.65
    £1,268.04 Price with VAT: £1,521.65
    NEPTUNE BP-C20-75

    NEPTUNE

    BP-C20-75

    3/4" C20 BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,361.75 Price with VAT: £1,634.10 Buy Surplus As Low As £817.65 Price with VAT: £981.18
    £817.65 Price with VAT: £981.18
    NEPTUNE BP-KY-150

    NEPTUNE

    BP-KY-150

    11/2" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £2,808.88 Price with VAT: £3,370.66 Buy Surplus As Low As £1,685.94 Price with VAT: £2,023.12
    £1,685.94 Price with VAT: £2,023.12
    NEPTUNE BP-KY-75

    NEPTUNE

    BP-KY-75

    3/4" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £945.36 Price with VAT: £1,134.44 Buy Surplus As Low As £567.52 Price with VAT: £681.02
    £567.52 Price with VAT: £681.02
    NEPTUNE BP-PVC-050

    NEPTUNE

    BP-PVC-050

    1/2" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £301.51 Price with VAT: £361.81 Buy Surplus As Low As £181.02 Price with VAT: £217.23
    £181.02 Price with VAT: £217.23
    NEPTUNE BP-PVC-100

    NEPTUNE

    BP-PVC-100

    1" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £600.77 Price with VAT: £720.92 Buy Surplus As Low As £360.46 Price with VAT: £432.55
    £360.46 Price with VAT: £432.55
    NEPTUNE BP-SS-150

    NEPTUNE

    BP-SS-150

    11/2" 316SS BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £2,338.85 Price with VAT: £2,806.62 Buy Surplus As Low As £1,403.31 Price with VAT: £1,683.97
    £1,403.31 Price with VAT: £1,683.97
    NEPTUNE BP-SS-75

    NEPTUNE

    BP-SS-75

    BACK PRESSURE VALVE, 3/4", 316SS, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £810.56 Price with VAT: £972.68 Buy Surplus As Low As £486.95 Price with VAT: £584.34
    £486.95 Price with VAT: £584.34
    NEPTUNE PP-PVC

    NEPTUNE

    PP-PVC

    OPTION TO MOUNT RELIEF VALVE AND PIPE RETURN USING PVC TUBING.
    £428.47 Price with VAT: £514.17 Buy Surplus As Low As £257.69 Price with VAT: £309.23
    £257.69 Price with VAT: £309.23
    NEPTUNE 000193

    NEPTUNE

    000193

    RELIEF VALVE POPPET
    £27.51 Price with VAT: £33.02 Buy Surplus As Low As £16.03 Price with VAT: £19.23
    £16.03 Price with VAT: £19.23
    1