Features & Benefits

    Universal connection possibilities for plastic, copper, precision steel or multi-layer pipes

    Especially low flow resistance

    No return circulation thanks to integrated gravity brakes in the single pipe valve

    Body made of nickel-plated corrosion-free gunmetal

    Technical description

    Applications area:

    One-pipe heating systems

    Function:

    Control
    Shut-off

    Dimensions:

    DN 15

    Pressure class:

    PN 10

    Temperature:

    Max. working temperature: 120°C, with protection cap or actuator 100°C.
    Min. working temperature: -10°C.

    Materials:

    Valve body: Corrosion resistant Gunmetal.
    O-rings: EPDM rubber
    Valve disc: EPDM rubber
    Return spring: Stainless steel
    Valve insert: Brass
    Spindle: Niro-steel spindle with double O-ring sealing. The outer O-ring can be replaced under pressure.
    Immersion pipe: Brass

    Surface treatment:

    Valve body and fittings are nickel-plated.

    Marking:

    THE and flow direction arrow.
    Blue protection cap.

    Pipe connection:

    G3/4 male thread for compression fittings for plastic, copper, precision steel or multi-layer pipe.

    Connection to thermostatic head and actuator:

    HEIMEIER M30x1,5

    Articles – One-pipe valve with immersion pipe

    With blue protection capNickel-plated gunmetal

    Valve body of a one-pipe valve

    With blue protection cap
    Nickel-plated gunmetal

    EAN
    Article No
    4024052215515
    3871-02.000

    Mounting the immersion pipe:Screw off the screw nipple from the one-pipe valve and completely screw on the immersion pipe with the long side in the nipple of the cone side (bead). The immersion pipe must end flush on the cone side of the screw nipple. With the immersion pipe, the diaphragm plate is installed in the middle of the first element.

    Immersion pipe with diaphragm plate

    Mounting the immersion pipe:
    Screw off the screw nipple from the one-pipe valve and completely screw on the immersion pipe with the long side in the nipple of the cone side (bead). The immersion pipe must end flush on the cone side of the screw nipple. With the immersion pipe, the diaphragm plate is installed in the middle of the first element.

    EAN
    Article No
    Thread reach 250 mm
    4024052216017
    3871-27.132

    Compression fitting for plastic, copper, precision steel or multi-layer pipes see Accessories.

    Accessories

    for copper or precision steel pipe according to DIN EN 1057/10305-1/2. Connection male thread G3/4 according to DIN EN 16313 (Eurocone). Metal-to-metal joint. Nickel-plated brass. With a pipe wall thickness of 0.8-1 mm insert supporting sleeves. Heed pipe manufacturer’s technical advice.

    Compression fitting

    for copper or precision steel pipe according to DIN EN 1057/10305-1/2.
    Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
    Metal-to-metal joint.
    Nickel-plated brass.
    With a pipe wall thickness of 0.8-1 mm insert supporting sleeves. Heed pipe manufacturer’s technical advice.

    Ø Pipe
    EAN
    Article No
    12
    4024052214211
    3831-12.351
    14
    4024052214310
    3831-14.351
    15
    4024052214617
    3831-15.351
    16
    4024052214914
    3831-16.351
    18
    4024052215218
    3831-18.351

    for copper or precision steel pipe with a wall thickness of 1 mm.

    Supporting sleeves

    for copper or precision steel pipe with a wall thickness of 1 mm.

    Ø Pipe
    L
    EAN
    Article No
    12
    25,0
    4024052127016
    1300-12.170
    15
    26,0
    4024052127917
    1300-15.170
    16
    26,3
    4024052128419
    1300-16.170
    18
    26,8
    4024052128815
    1300-18.170

    for replacing the manual regulator top part with the one-pipe manual regulator valve in the universal production line. Water division 50/50.

    Special insert

    for replacing the manual regulator top part with the one-pipe manual regulator valve in the universal production line.
    Water division 50/50.

    EAN
    Article No
    4024052227112
    4300-02.002

    Union threading for the circular pipeline

    EAN
    Article No
    Union nut
    4024052111114
    0121-02.011
    Screw nipple R1/2
    4024052111015
    0121-02.010

    for copper or precision steel pipe according to DIN EN 1057/10305-1/2 and stainless steel pipe. Connection male thread G3/4 according to DIN EN 16313 (Eurocone). Soft sealed, max. 95°C. Nickel-plated brass.

    Compression fitting

    for copper or precision steel pipe according to DIN EN 1057/10305-1/2 and stainless steel pipe.
    Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
    Soft sealed, max. 95°C.
    Nickel-plated brass.

    Ø Pipe
    EAN
    Article No
    15
    4024052515851
    1313-15.351
    18
    4024052516056
    1313-18.351

    for plastic pipe according to DIN 4726, ISO 10508. PE-X: DIN 16892/16893, EN ISO 15875; PB: DIN 16968/16969. Connection male thread G3/4 according to DIN EN 16313 (Eurocone). Nickel-plated brass.

    Compression fitting

    for plastic pipe according to DIN 4726, ISO 10508. PE-X: DIN 16892/16893, EN ISO 15875; PB: DIN 16968/16969.
    Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
    Nickel-plated brass.

    Ø Pipe
    EAN
    Article No
    12x1,1
    4024052136018
    1315-12.351
    14x2
    4024052134618
    1311-14.351
    16x1,5
    4024052136117
    1315-16.351
    16x2
    4024052134816
    1311-16.351
    17x2
    4024052134915
    1311-17.351
    18x2
    4024052135110
    1311-18.351
    20x2
    4024052135318
    1311-20.351

    for Alu/PEX multi-layer pipe according to DIN 16836. Connection male thread G3/4 according to DIN EN 16313 (Eurocone).Nickel-plated brass.

    Compression fitting

    for Alu/PEX multi-layer pipe according to DIN 16836.
    Connection male thread G3/4 according to DIN EN 16313 (Eurocone).
    Nickel-plated brass.

    Ø Pipe
    EAN
    Article No
    16x2
    4024052137312
    1331-16.351
    18x2
    4024052137411
    1331-18.351

    white plastic, can be divided in the centre, for various pipe diameters, distance between center points 58 mm, total height max. 31 mm.

    Double rosette

    white plastic, can be divided in the centre, for various pipe diameters, distance between center points 58 mm, total height max. 31 mm.

    EAN
    Article No
    4024052213214
    3831-00.093

    For connecting to plastic, copper, precision steel or multi-layer pipes. For valves with male thread connection G3/4.Brass nickel-plated.

    Length adjustment fitting

    For connecting to plastic, copper, precision steel or multi-layer pipes.
    For valves with male thread connection G3/4.
    Brass nickel-plated.

    L
    EAN
    Article No
    G3/4 x G3/4
    25
    4024052298310
    9713-02.354
    G3/4 x G3/4
    50
    4024052298419
    9714-02.354

    For compensating different pipe distances, e. g. when replacing old one-pipe valves. Note flow direction!Brass, nickel-plated.

    S-connection

    For compensating different pipe distances, e. g. when replacing old one-pipe valves.
    Note flow direction!
    Brass, nickel-plated.

    Axial distance [mm]
    Total length [mm]
    EAN
    Article No
    G3/4 x G3/4
    11,5
    43
    4024052139217
    1351-02.362

    Substitue insert.Line of product since June 1981.

    Thermostatic insert for one-pipe valve

    Substitue insert.
    Line of product since June 1981.

    EAN
    Article No
    4024052213511
    3831-02.299

    Modified insert, line of products up to May 1981. Replacement insert for modifying a microthermal single pipe valve (immersion pipe line) into a thermostatic model.Use only in connection with thermostatic head with remote sensor or control.

    Thermostatic insert for one-pipe valve with immersion pipe

    Modified insert, line of products up to May 1981. Replacement insert for modifying a microthermal single pipe valve (immersion pipe line) into a thermostatic model.
    Use only in connection with thermostatic head with remote sensor or control.

    EAN
    Article No
    4024052101115
    0037-02.300

    Attention: microthermal one-pipe manual valves in universal production are to be retrofitted according to the principle of the E-Z System to thermostatic valves. To do this, the angle clamp compression fitting in the radiator supply pipe is to be replaced with a flow through thermostatic valve body with bend nipple (art. no. 2244–02.000). The microthermal manual insert is to be replaced with the above-mentioned special insert (art. no. 4300–02.002). For further information, please contact the factory.

    3831-02-299

    Select a format Download

    4300-02-002

    Select a format Download

    0037-02-300

    Select a format Download

    3871-xx-132-4c-hi

    Select a format Download

    3871-02-000-4c-hi

    Select a format Download

    Drawings