Features & Benefits

    Inline design

    Inline flow allows high pressure drops without noise.

    Adjustable set-point

    Delivers desired differential pressure ensuring accurate balancing.

    Technical description

    Application:

    Heating and cooling systems.
    Installation in supply pipe.

    Functions:

    Differential pressure control
    Pre-setting Δp over the load (ΔpL)

    Dimensions:

    DN 15-125

    Pressure class:

    DN 15-50: PN 25
    DN 65-125: PN 25 / PN 16

    Max. differential pressure (ΔpV):

    1600 kPa = 16 bar

    Setting range:

    Δp over the load is adjustable within:
    5-30 kPa, 10-60 kPa, 10-100 kPa or 60-150 kPa.
    Delivery setting:
    DN 15-50: Maximum value (30, 60, 100 resp. 150 kPa).
    DN 65-125: Midway min./max. value (~18, ~35, ~55 resp. ~105 kPa).

    Temperature:

    Max. working temperature: 150°C
    Min. working temperature: -10°C

    Media:

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

    Material:

    Valve body: Ductile iron EN-GJS-400-15
    Diaphragms and gaskets: EPDM
    Adjustment ring: DN 15-50 Ryton PPS, DN 65-125 R St 37-2 steel.

    Surface treatment:

    Electrophoretic painting.

    Marking:

    IMI TA, DN, PN, Material, Kvs, Δp and flow direction arrow.

    Connection:

    DN 15-50: Male threads according to ISO 228. (Separate connections with ANSI flanges and UNC threads.)
    DN 65-125: Flanges according to ASME/ANSI B16.42 Class 150.

    Articles

    DN 15-50

    Male thread – Separate connections with NPT threads or ANSI flanges – see "Connections for DN 15-50".

    Male threads according to ISO 228.

    Included: Capillary pipe (Ø6) 2 x 1 200 mm, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD and 2 capillary pipe connections R1/4 (R1/8 mounted on valve).

    PN 25

    DN
    d
    L
    L1*
    H1
    H2
    Kvs
    Kg
    EAN
    Article No
    5-30 kPa
    15/20
    G1
    106
    116
    41
    52
    4
    1,5
    3831112505476
    52 763-120
    25/32
    G1 1/4
    125
    150
    51
    57
    12
    2,6
    3831112503953
    52 763-125
    40/50
    G2
    162
    190
    70
    75
    30
    5,8
    3831112504042
    52 763-140
    10-60 kPa
    15/20
    G1
    106
    116
    41
    52
    4
    1,5
    3831112505377
    52 761-120
    25/32
    G1 1/4
    125
    150
    51
    57
    12
    2,6
    3831112504134
    52 761-125
    40/50
    G2
    162
    190
    70
    75
    30
    5,8
    3831112504196
    52 761-140
    10-100 kPa
    15/20
    G1
    106
    116
    41
    52
    4
    1,5
    3831112504189
    52 760-120
    25/32
    G1 1/4
    125
    150
    51
    57
    12
    2,6
    3831112504004
    52 760-125
    40/50
    G2
    162
    190
    70
    75
    30
    5,8
    3831112504103
    52 760-140
    60-150 kPa
    15/20
    G1
    106
    116
    41
    52
    4
    1,5
    3831112504233
    52 762-120
    25/32
    G1 1/4
    125
    150
    51
    57
    12
    2,6
    3831112504141
    52 762-125
    40/50
    G2
    162
    190
    70
    75
    30
    5,8
    3831112504158
    52 762-140

    *) Length incl adjustment ring.

    DN 65-125

    Flanges – Do not need any separate connections.

    Flanges according to ASME/ANSI B16.42 Class 150.

    Included: Capillary pipe (Ø6) 2 x 1 500 mm and 2 capillary pipe connections R1/4 (M14x1 mounted on valve).

    Class 150

    DN
    D
    L
    Kvs
    Kg
    EAN
    Article No
    5-30 kPa
    65
    210
    160
    60
    18
    3831112529885
    52 768-665
    80
    210
    160
    60
    18
    3831112529922
    52 768-680
    100
    320
    254
    150
    58
    3831112529809
    52 768-690
    125
    320
    254
    150
    58
    3831112529847
    52 768-691
    10-60 kPa
    65
    210
    160
    60
    18
    3831112529878
    52 768-765
    80
    210
    160
    60
    18
    3831112529915
    52 768-780
    100
    320
    254
    150
    58
    3831112529793
    52 768-790
    125
    320
    254
    150
    58
    3831112529830
    52 768-791
    10-100 kPa
    65
    210
    160
    60
    18
    3831112529861
    52 768-865
    80
    210
    160
    60
    18
    3831112529908
    52 768-880
    100
    320
    254
    150
    58
    3831112529786
    52 768-890
    125
    320
    254
    150
    58
    3831112529823
    52 768-891
    60-150 kPa
    65
    210
    160
    60
    18
    3831112529892
    52 768-965
    80
    210
    160
    60
    18
    3831112529939
    52 768-980
    100
    320
    254
    150
    58
    3831112529816
    52 768-990
    125
    320
    254
    150
    58
    3831112529854
    52 768-991


    Kvs = m3/h at a pressure drop of 1 bar and fully open valve.

    → = Flow direction

    Connections for DN 15-50

    Threads according to ANSI/ASME B1.20.1-1983.Swivelling nut

    With female thread NPT

    Threads according to ANSI/ASME B1.20.1-1983.
    Swivelling nut

    d1
    d2
    L1*
    EAN
    Article No
    G1 1/4
    1 NPT
    73
    3831112533394
    52 751-307
    G1 1/4
    1 1/4 NPT
    80
    3831112533400
    52 751-308
    G2
    1 1/2 NPT
    82
    3831112533417
    52 751-309
    G2
    2 NPT
    93
    3831112533424
    52 751-310

    Attention! Can be used on the inlet side only.

    With ANSI flange

    Attention! Can be used on the inlet side only.

    According to ASME/ANSI B 16.42 Class 150.

    d1
    d2
    D
    L1*
    EAN
    Article No
    G1
    1/2"-13 UNC
    89
    10
    3831112511811
    52 759-815
    G1
    1/2"-13 UNC
    98,5
    20
    3831112511835
    52 759-820
    G1 1/4
    1/2"-13 UNC
    108
    5
    3831112511866
    52 759-825
    G1 1/4
    1/2"-13 UNC
    117,3
    15
    3831112511873
    52 759-832
    G2
    1/2"-13 UNC
    127
    5
    3831112511897
    52 759-840
    G2
    5/8"-11 UNC
    152,4
    20
    3831112511491
    52 759-850

    Attention! Must be used on the outlet side.

    With ANSI flange (extended)

    Attention! Must be used on the outlet side.

    According to ASME/ANSI B 16.42 Class 150.

    d1
    d2
    D
    L1*
    EAN
    Article No
    G1
    1/2"-13 UNC
    89
    47
    3831112511828
    52 759-915
    G1
    1/2"-13 UNC
    98,5
    47
    3831112511842
    52 759-920
    G1 1/4
    1/2"-13 UNC
    108
    62
    3831112511859
    52 759-925
    G1 1/4
    1/2"-13 UNC
    117,3
    62
    3831112511880
    52 759-932
    G2
    1/2"-13 UNC
    127
    72
    3831112511903
    52 759-940
    G2
    5/8"-11 UNC
    152,4
    72
    3831112511507
    52 759-950

    *) Fitting length (from the gasket surface to the end of the connection).


    Other types of connections (ISO), see international version of DAF 516.

    Accessories

    Capillary pipe

    Ø6 mm

    2 pcs included in DAF 516.

    L [m]
    Ø
    DN
    EAN
    Article No
    1,2
    6 mm
    15-50
    3831112527157
    52 759-215
    1,5
    6 mm
    65-125
    3831112527164
    52 759-265

    For capillary pipe Ø6 mm with R1/4, R1/8 and M14 connection.

    Capillary pipe connection

    For capillary pipe Ø6 mm with R1/4, R1/8 and M14 connection.

    DN 15-50: 2 pcs R1/4 included in DAF 516 (2 pcs R1/8 mounted on valve).
    DN 65-125: 2 pcs R1/4 included in DAF 516 (2 pcs M14x1 mounted on valve).

    DN
    EAN
    Article No
    6 x R1/4
    15-125
    3831112527355
    52 759-201
    6 x R1/8
    15-32
    3831112533868
    52 759-213
    6 x R1/8
    40-50
    3831112533875
    52 759-218
    6 x M14x1
    65-125
    3831112535145
    52 759-214

    Must be used on STAD when connection of Ø6 mm capillary pipe.

    Connection set STAD

    Must be used on STAD when connection of Ø6 mm capillary pipe.

    2 transition nipples (G1/2 and G3/4), 1 thrust nut (Ø6), 1 cone (Ø6) and 1 support bush are included in DAF 516, DN 15-50.

    d
    EAN
    Article No
    G1/2
    7318793850003
    52 762-006
    G3/4
    7318793850102
    52 762-106

    Capillary pipe connection with shut-off

    For connection of Ø6 mm capillary pipe to STAF/STAF-SG.

    d
    D
    For DN
    EAN
    Article No
    G1/4
    6
    20-50
    7318793999504
    52 265-209
    G3/8
    6
    65-400
    7318793999405
    52 265-208

    Suitable when insulation is used.Stainless steel/EPDM/Brass.

    Venting extension

    Suitable when insulation is used.
    Stainless steel/EPDM/Brass.

    d
    D
    L
    EAN
    Article No
    M6
    12
    70
    3831112531727
    52 759-220

    Brass/EPDM

    Venting screw

    Brass/EPDM

    d
    EAN
    Article No
    M6
    3831112527980
    52 759-211

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    Drawings

    2D3D