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:

    DN 15-50

    Pressure class:

    PN 16

    Max. differential pressure (ΔpV):

    250 kPa (84 ft H2O/37 PSI)

    Setting range:

    DN 15-25: 10*-60 kPa (3.34-20.1 ft H2O/1.45-8.70 PSI)
    DN 32-50: 20*-80 kPa (6.69-26.8 ft H2O/2.90-11.6 PSI)
    *) Delivery setting

    Temperature:

    Max. working temperature: 120°C
    Min. working temperature: -20°C

    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

    1 m capillary pipe and transition nipples UNS 1 1/16"x11,5 are included.

    Female NPT threads

    1 m capillary pipe and transition nipples UNS 1 1/16"x11,5 are included.

    DN
    (Size)
    D
    L
    H
    B
    Kvm
    qmax
    [m3/h]
    Kg
    EAN
    Article No
    10-60 kPa
    15
    1/2"
    1/2-14 NPT
    84
    137
    72
    1,4
    1,0
    1,1
    7318793957603
    52 266-015
    20
    3/4"
    3/4-14 NPT
    91
    139
    72
    3,1
    2,2
    1,2
    7318793957702
    52 266-020
    25
    1"
    1-11.5 NPT
    93
    141
    72
    5,5
    3,9
    1,3
    7318793957801
    52 266-025
    20-80 kPa
    32
    1 1/4"
    1 1/4-11.5 NPT
    133
    179
    110
    8,5
    6,0
    2,6
    7318793957900
    52 266-032
    40
    1 1/2"
    1 1/2-11.5 NPT
    135
    181
    110
    12,8
    9,1
    2,9
    7318793958006
    52 266-040
    50
    2"
    2-11.5 NPT
    137
    187
    110
    24,4
    17,3
    3,5
    7318793958105
    52 266-050

    → = Flow direction

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

    Accessories

    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

    Measuring point STAP

    EAN
    Article No
    7318793660602
    52 265-205

    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

    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

    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 heating/cooling

    Insulation STAP

    For heating/cooling

    For DN
    L
    H
    B
    EAN
    Article No
    15-25
    145
    172
    116
    7318793658906
    52 265-225
    32-50
    191
    234
    154
    7318793659002
    52 265-250
    Spare parts

    Capillary pipe

    L
    EAN
    Article No
    1 m
    7318793661500
    52 265-301

    Venting

    Plug

    Venting

    EAN
    Article No
    7318793661609
    52 265-302

    For capillary pipe with G1/16 connection.

    Transition nipple

    For capillary pipe with G1/16 connection.

    d
    EAN
    Article No
    G1/2
    7318793660206
    52 179-981
    G3/4
    7318793660305
    52 179-986
    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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