Features & Benefits

    Adjustable set-point

    Delivers desired differential pressure ensuring accurate balancing.

    Shut-off function

    Shut-off function makes maintenance easy and straightforward.

    Measuring points

    Simplifies the balancing procedure, and increases its accuracy.

    Technical description

    Application:

    Heating (not steam) and cooling systems.

    Function:

    Differential pressure control
    Adjustable Δp
    Measuring points
    Shut-off

    Dimensions:

    2 1/2" - 4"

    Pressure class:

    Class 150
    Temperature / Max. pressure:
    -4 to 100 °F / 250 psi
    200 °F / 235 psi
    248 °F / 225 psi

    Max. differential pressure (ΔpV):

    117 ft H2O / 51 psi

    Setting range:

    6.69*-26.8 ft H2O / 2.90*-11.6 psi resp
    13.4*-53.5 ft H2O / 5.80*-23.2 psi
    *) Delivery setting

    Temperature:

    Max. working temperature: 248°F
    Min. working temperature: 14°F

    Media:

    Water or neutral fluids, water-glycol mixtures (0-57%).

    Material:

    Valve body: Ductile iron EN-GJS-400-15 (~ASTM A536 Grade 60-40-18, ISO 1083 Grade 400-15)
    Bonnet: AMETAL®
    Cone: PTFE coated AMETAL®
    Spindles: AMETAL®
    O-rings: EDPM rubber
    Seat seal: Plug with EPDM O-ring
    Membrane: Reinforced EPDM rubber
    Spring: Stainless steel
    Handwheel: Polyamide


    AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering.

    Surface treatment:

    Valve body: Epoxy painting.

    Marking:

    Body: TA, Class 150, DN, CE, ASTM 60-40-18, flow direction arrow and casting date (year, month, day).
    Bonnet and handwheel: Label with STAP, DN, PN, ΔpL in ft H2O, psi and kPa, and bar code.

    Face to face:

    ISO 5752 series 1 and EN 558-1 series 1.

    Flanges:

    Class 150 according to ASME/ANSI B16.42 (~ PN 20 according to ISO 7005-2).

    Articles

    Flanged

    3.28 ft (1 m) capillary pipe and transition nipple with shut-off are included.

    Size
    Number of
    bolt holes
    D [in]
    L [in]
    H [in]
    Cvm
    qmax
    [gpm]
    lb
    EAN
    Article No
    2.90-11.6 psi
    2 1/2"
    4
    7.1
    11.4
    12.6
    41.8
    112.2
    47.4
    7318793959607
    52 266-065
    3"
    4
    7.5
    12.2
    13.3
    63.8
    171.2
    52.9
    7318793959706
    52 266-080
    4"
    8
    9.1
    13.8
    13.8
    127.6
    342.3
    63.9
    7318793959805
    52 266-090
    5.80-23.2 psi
    2 1/2"
    4
    7.1
    11.4
    12.6
    41.8
    112.2
    47.4
    7318793958204
    52 266-165
    3"
    4
    7.5
    12.2
    13.3
    63.8
    171.2
    52.9
    7318793958303
    52 266-180
    4"
    8
    9.1
    13.8
    13.8
    127.2
    342.3
    63.9
    7318793958402
    52 266-190

    → = Flow direction

    Cvm = gpm at a pressure drop of 1 psi and maximum opening corresponding to the p-band (-25%).

    Accessories

    Measuring point STAP

    EAN
    Article No
    7318793660602
    52 265-205

    Complete with connections for 6 mm pipe.

    Extension kit for capillary pipe

    Complete with connections for 6 mm pipe.

    EAN
    Article No
    6 mm
    7318793781505
    52 265-212

    Capillary pipe

    L
    EAN
    Article No
    3.28 ft (1 m)
    7318793661500
    52 265-301

    Capillary pipe connection with shut-off

    EAN
    Article No
    7318793781604
    52 265-206

    Venting

    Plug

    Venting

    EAN
    Article No
    7318793661609
    52 265-302

    For connection of capillary pipe while permitting simultaneous use of our balancing instrument.

    Measuring point, two-way

    For connection of capillary pipe while permitting simultaneous use of our balancing instrument.

    EAN
    Article No
    7318793784100
    52 179-200

    52266065

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    2D3D

    Drawings