Features & Benefits

    Pressure relief cone

    Ensures accurate differential pressure control.

    Adjustable set-point and shut-off function

    Delivers desired differential pressure ensuring accurate balancing. Shut-off function makes maintenance easy and straightforward.

    Measuring points with drain option

    Simplifies the balancing procedure, and increases its accuracy.

    Technical description

    Application:

    Heating (not steam) and cooling systems.

    Functions:

    Differential pressure control
    Adjustable Δp
    Measuring point
    Shut-off
    Draining (accessory)

    Dimensions:

    1/2" - 2"

    Pressure class:

    PN 16 (230 psi)

    Max. differential pressure (ΔpV):

    84 ft H2O / 37 psi

    Setting range:

    Size 1/2" - 1":
    3.34*-20.1 ft H2O / 1.45*-8.70 psi
    Size 1 1/4" - 2":
    6.69*-26.8 ft H2O / 2.90*-11.6 psi
    *) Delivery setting

    Temperature:

    Max. working temperature: 248°F
    Min. working temperature: -4°F

    Media:

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

    Material:

    Valve body: AMETAL®
    Bonnet: AMETAL®
    Cone: AMETAL®
    Spindles: AMETAL®
    O-rings: EPDM rubber
    Membrane: HNBR rubber
    Spring: Stainless steel
    Spring support: AMETAL® and reinforced PPS
    Handwheel: Polyamide


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

    Marking:

    Body: IMI or TA, PN 16/150, DN, inch size and flow direction arrow.
    Bonnet: STAP, ΔpL range in ft H2O and psi.

    Connection:

    Pipe threads NPT according to ANSI/ASME B1.20.1-1983.
    Complete thread according to ANSI B16.15-1985.

    Articles

    3.28 ft (1 m) capillary pipe and transition nipples UNS 1 1/16"x11.5 are included.

    Female NPT threads

    3.28 ft (1 m) capillary pipe and transition nipples UNS 1 1/16"x11.5 are included.

    Size
    D
    L [in]
    H [in]
    B [in]
    Cvm
    qmax
    [gpm]
    lb
    EAN
    Article No
    1.45-8.70 psi
    1/2"
    1/2-14 NPT
    3.3
    5.4
    2.8
    1.62
    4.4
    2.43
    7318793957603
    52 266-015
    3/4"
    3/4-14 NPT
    3.6
    5.5
    2.8
    3.58
    9.69
    2.65
    7318793957702
    52 266-020
    1"
    1-11.5 NPT
    3.7
    5.6
    2.8
    6.36
    17.2
    2.87
    7318793957801
    52 266-025
    2.90-11.6 psi
    1 1/4"
    1 1/4-11.5 NPT
    5.2
    7.0
    4.3
    9.83
    26.4
    5.73
    7318793957900
    52 266-032
    1 1/2"
    1 1/2-11.5 NPT
    5.3
    7.1
    4.3
    14.8
    40.1
    6.39
    7318793958006
    52 266-040
    2"
    2-11.5 NPT
    5.4
    7.4
    4.3
    28.21
    76.2
    7.72
    7318793958105
    52 266-050

    → = Flow direction

    Kvm = m3/h at a pressure drop of 1 bar and opening corresponding to the p-band.

    Accessories

    For heating/cooling

    Insulation STAP

    For heating/cooling

    For size
    L [in]
    H [in]
    B [in]
    EAN
    Article No
    1/2" - 1"
    5.71
    6.77
    4.57
    7318793658906
    52 265-225
    1 1/4" - 2"
    7.52
    9.21
    6.06
    7318793659002
    52 265-250

    Draining kit STAP

    d
    EAN
    Article No
    G1/2
    7318793660404
    52 265-201
    G3/4
    7318793660503
    52 265-202
    UNS 1 1/16"x11.5
    7318793959102
    52 266-202

    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

    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

    For use on STAD or STS. Replacement of existing draining.

    Connection sleeve kit for capillary pipe

    For use on STAD or STS. Replacement of existing draining.

    EAN
    Article No
    7318794027800
    52 265-216
    Spare parts

    Venting

    Plug

    Venting

    EAN
    Article No
    7318793661609
    52 265-302

    Capillary pipe

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

    For capillary pipe with G1/16 connection.

    Transition nipple

    For capillary pipe with G1/16 connection.

    d
    EAN
    Article No
    UNS 1 1/16x11.5
    7318793959300
    52 179-987

    52265205

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    52265212

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    52179981

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    52265202

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    52265201

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    STAP_persp_kat

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    52265301

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    52265216

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    52266202

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    STAP_w_capillary_pipe

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    52265302

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    52266212

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    STAP

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    2D3D

    Drawings