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    Valves / Pressure Relief Valve

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    42 Results.
    NEPTUNE RV-316-100

    NEPTUNE

    RV-316-100

    1" 316SS RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    ✓ IN STOCK!
    £1,097.40 Price with VAT: £1,316.88 Buy Surplus As Low As £658.44 Price with VAT: £790.13
    £658.44 Price with VAT: £790.13
    NEPTUNE 14010-2100

    NEPTUNE

    14010-2100

    DISCONTINUED BY MANUFACTURER, BACK PRESSURE VALVE, 50 PSI, STEEL, 1/2"
    ✓ IN STOCK!
    Buy Surplus As Low As £26.76 Price with VAT: £32.11
    £26.76 Price with VAT: £32.11
    NEPTUNE RV-316-1

    NEPTUNE

    RV-316-1

    RELIEF VALVE, 1/2 INCH, 316SS, 30-100 PSI, SET PRESSURE
    £502.09 Price with VAT: £602.51 Buy Surplus As Low As £301.69 Price with VAT: £362.03
    £301.69 Price with VAT: £362.03
    NEPTUNE 000193

    NEPTUNE

    000193

    RELIEF VALVE POPPET
    £26.73 Price with VAT: £32.07 Buy Surplus As Low As £15.57 Price with VAT: £18.68
    £15.57 Price with VAT: £18.68
    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
    £537.92 Price with VAT: £645.50 Buy Surplus As Low As £307.68 Price with VAT: £369.21
    £307.68 Price with VAT: £369.21
    NEPTUNE BP-SS-75

    NEPTUNE

    BP-SS-75

    BACK PRESSURE VALVE, 3/4", 316SS, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £787.35 Price with VAT: £944.82 Buy Surplus As Low As £473.00 Price with VAT: £567.61
    £473.00 Price with VAT: £567.61
    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
    £507.11 Price with VAT: £608.53 Buy Surplus As Low As £304.71 Price with VAT: £365.65
    £304.71 Price with VAT: £365.65
    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-316-1-75

    NEPTUNE

    RV-316-1-75

    RELIEF VALVE, 30-100 PSI, 316SS, 3.0 GPM, LIQUID SERVICE ONLY
    £308.30 Price with VAT: £369.96 Buy Surplus As Low As £184.98 Price with VAT: £221.98
    £184.98 Price with VAT: £221.98
    NEPTUNE RV-316-1 100PSI

    NEPTUNE

    RV-316-1 100PSI

    RELIEF VALVE, 1/2 INCH, 316SS, 100 PSI VERSION
    £296.55 Price with VAT: £355.87 Buy Surplus As Low As £178.37 Price with VAT: £214.05
    £178.37 Price with VAT: £214.05
    NEPTUNE PS

    NEPTUNE

    PS

    OPTION TO MOUNT RELIEF VALVE AND PIPE RETURN USING SS TUBING.
    £802.31 Price with VAT: £962.77 Buy Surplus As Low As £481.53 Price with VAT: £577.84
    £481.53 Price with VAT: £577.84
    NEPTUNE RV-KY-100

    NEPTUNE

    RV-KY-100

    1" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £1,161.26 Price with VAT: £1,393.51 Buy Surplus As Low As £697.34 Price with VAT: £836.81
    £697.34 Price with VAT: £836.81
    NEPTUNE RV-KY

    NEPTUNE

    RV-KY

    1/2" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £704.68 Price with VAT: £845.62 Buy Surplus As Low As £422.81 Price with VAT: £507.37
    £422.81 Price with VAT: £507.37
    NEPTUNE RV-C20-75

    NEPTUNE

    RV-C20-75

    3/4" C20 RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £1,451.21 Price with VAT: £1,741.45 Buy Surplus As Low As £871.31 Price with VAT: £1,045.58
    £871.31 Price with VAT: £1,045.58
    NEPTUNE RV-C20-2

    NEPTUNE

    RV-C20-2

    1/2" C-20 RELIEF VALVE, 101-400 PSI SET PRESSURE.
    £1,216.31 Price with VAT: £1,459.58 Buy Surplus As Low As £730.38 Price with VAT: £876.45
    £730.38 Price with VAT: £876.45
    NEPTUNE RV-316-4

    NEPTUNE

    RV-316-4

    1/2" 316SS RELIEF VALVE, 1001-2000 PSI SET PRESSURE.
    £502.09 Price with VAT: £602.51 Buy Surplus As Low As £301.69 Price with VAT: £362.03
    £301.69 Price with VAT: £362.03
    NEPTUNE BP-SS-100

    NEPTUNE

    BP-SS-100

    1" 316SS BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,013.72 Price with VAT: £1,216.46 Buy Surplus As Low As £608.52 Price with VAT: £730.23
    £608.52 Price with VAT: £730.23
    NEPTUNE BP-PVC-75

    NEPTUNE

    BP-PVC-75

    3/4" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £451.44 Price with VAT: £541.73 Buy Surplus As Low As £270.86 Price with VAT: £325.04
    £270.86 Price with VAT: £325.04
    NEPTUNE BP-PVC-150

    NEPTUNE

    BP-PVC-150

    11/2" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £1,255.22 Price with VAT: £1,506.26 Buy Surplus As Low As £753.13 Price with VAT: £903.76
    £753.13 Price with VAT: £903.76
    NEPTUNE BP-KY-100

    NEPTUNE

    BP-KY-100

    1" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,115.02 Price with VAT: £1,338.02 Buy Surplus As Low As £669.45 Price with VAT: £803.34
    £669.45 Price with VAT: £803.34
    NEPTUNE BP-KY

    NEPTUNE

    BP-KY

    1/2" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £689.27 Price with VAT: £827.12 Buy Surplus As Low As £414.00 Price with VAT: £496.80
    £414.00 Price with VAT: £496.80
    NEPTUNE BP-CPVC-75

    NEPTUNE

    BP-CPVC-75

    3/4" CPVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £499.89 Price with VAT: £599.86 Buy Surplus As Low As £300.22 Price with VAT: £360.27
    £300.22 Price with VAT: £360.27
    NEPTUNE BP-C20

    NEPTUNE

    BP-C20

    1/2" C20 BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,282.38 Price with VAT: £1,538.85 Buy Surplus As Low As £770.01 Price with VAT: £924.02
    £770.01 Price with VAT: £924.02
    NEPTUNE RV-PVC-100

    NEPTUNE

    RV-PVC-100

    1" PVC RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £624.67 Price with VAT: £749.61 Buy Surplus As Low As £375.10 Price with VAT: £450.12
    £375.10 Price with VAT: £450.12
    NEPTUNE RV-PVC

    NEPTUNE

    RV-PVC

    1/2" PVC RELIEF VALVE, PRESSURES TO 150 PSI.
    £298.76 Price with VAT: £358.51 Buy Surplus As Low As £179.84 Price with VAT: £215.81
    £179.84 Price with VAT: £215.81
    NEPTUNE RV-KY-75

    NEPTUNE

    RV-KY-75

    3/4" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £938.11 Price with VAT: £1,125.73 Buy Surplus As Low As £563.01 Price with VAT: £675.62
    £563.01 Price with VAT: £675.62
    NEPTUNE RV-KY-150

    NEPTUNE

    RV-KY-150

    11/2" KYNAR RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £2,781.30 Price with VAT: £3,337.56 Buy Surplus As Low As £1,669.22 Price with VAT: £2,003.06
    £1,669.22 Price with VAT: £2,003.06
    NEPTUNE RV-C20-100

    NEPTUNE

    RV-C20-100

    1" C20 RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £2,146.35 Price with VAT: £2,575.62 Buy Surplus As Low As £1,288.25 Price with VAT: £1,545.90
    £1,288.25 Price with VAT: £1,545.90
    NEPTUNE RV-C20-1

    NEPTUNE

    RV-C20-1

    1/2" C-20 RELIEF VALVE, 30-100 PSI SET PRESSURE.
    £1,216.31 Price with VAT: £1,459.58 Buy Surplus As Low As £730.38 Price with VAT: £876.45
    £730.38 Price with VAT: £876.45
    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
    £278.94 Price with VAT: £334.73 Buy Surplus As Low As £167.36 Price with VAT: £200.84
    £167.36 Price with VAT: £200.84
    NEPTUNE BP-C20-75

    NEPTUNE

    BP-C20-75

    3/4" C20 BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £1,322.75 Price with VAT: £1,587.30 Buy Surplus As Low As £794.24 Price with VAT: £953.09
    £794.24 Price with VAT: £953.09
    NEPTUNE BP-C20-100

    NEPTUNE

    BP-C20-100

    1" C20 BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £2,052.39 Price with VAT: £2,462.87 Buy Surplus As Low As £1,231.73 Price with VAT: £1,478.08
    £1,231.73 Price with VAT: £1,478.08
    NEPTUNE BP-CPVC

    NEPTUNE

    BP-CPVC

    1/2" CPVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £325.18 Price with VAT: £390.22 Buy Surplus As Low As £195.26 Price with VAT: £234.31
    £195.26 Price with VAT: £234.31
    NEPTUNE RV-PVC-75

    NEPTUNE

    RV-PVC-75

    3/4" PVC RELIEF VALVE, TEFLON DIAPHRAGM, 125PSI SET PRESSURE
    £480.07 Price with VAT: £576.08 Buy Surplus As Low As £288.48 Price with VAT: £346.18
    £288.48 Price with VAT: £346.18
    NEPTUNE RV-PVC-150

    NEPTUNE

    RV-PVC-150

    11/2" PVC RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £1,255.95 Price with VAT: £1,507.14 Buy Surplus As Low As £753.87 Price with VAT: £904.64
    £753.87 Price with VAT: £904.64
    NEPTUNE PP-PVC

    NEPTUNE

    PP-PVC

    OPTION TO MOUNT RELIEF VALVE AND PIPE RETURN USING PVC TUBING.
    £416.20 Price with VAT: £499.44 Buy Surplus As Low As £250.31 Price with VAT: £300.37
    £250.31 Price with VAT: £300.37
    NEPTUNE BP-SS-150

    NEPTUNE

    BP-SS-150

    11/2" 316SS BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £2,271.87 Price with VAT: £2,726.25 Buy Surplus As Low As £1,363.12 Price with VAT: £1,635.75
    £1,363.12 Price with VAT: £1,635.75
    NEPTUNE BP-PVC-100

    NEPTUNE

    BP-PVC-100

    1" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £583.57 Price with VAT: £700.28 Buy Surplus As Low As £350.14 Price with VAT: £420.17
    £350.14 Price with VAT: £420.17
    NEPTUNE BP-PVC-050

    NEPTUNE

    BP-PVC-050

    1/2" PVC BACK PRESSURE VALVE, TEFLON DIAPHRAGM, PRESET AT 50 PSI
    £292.88 Price with VAT: £351.45 Buy Surplus As Low As £175.84 Price with VAT: £211.01
    £175.84 Price with VAT: £211.01
    NEPTUNE BP-KY-75

    NEPTUNE

    BP-KY-75

    3/4" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £918.29 Price with VAT: £1,101.95 Buy Surplus As Low As £551.27 Price with VAT: £661.52
    £551.27 Price with VAT: £661.52
    NEPTUNE BP-KY-150

    NEPTUNE

    BP-KY-150

    11/2" KYNAR BACK PRESSURE VALVE, TEFLON DIAPHRAGM, 50PSIG SET PRESSURE
    £2,728.45 Price with VAT: £3,274.14 Buy Surplus As Low As £1,637.66 Price with VAT: £1,965.19
    £1,637.66 Price with VAT: £1,965.19
    NEPTUNE RV-316-150

    NEPTUNE

    RV-316-150

    11/2" 316SS RELIEF VALVE, TEFLON DIAPHRAGM, 150PSIG SET PRESSURE
    £2,271.87 Price with VAT: £2,726.25 Buy Surplus As Low As £1,363.12 Price with VAT: £1,635.75
    £1,363.12 Price with VAT: £1,635.75
    1