Technical description

    Application:

    Heating and cooling systems
    Tap water systems

    Function:

    Protects against reverse flow

    Dimensions:

    DN 50-600

    Pressure class:

    PN 16 and PN 25

    Temperature:

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

    Media:

    Water and neutral fluids, water-glycol mixtures.

    Material:

    Grooved:
    Body: Ductile Iron EN-JS 1050
    Disc: DI EPDM Coated EN-JS 1050
    Seat: DI Integral EN-JS 1050
    Spring: Stainless Steel BS970 304S15
    Shaft: Stainless Steel BS970 420S37
    Gasket: EPDM Commercial
    Shaft: Plug Brass CuZn39Pb3
    Flanged:
    Body -Cast Iron EN-JL 1040 for PN16
    Cover -Cast Iron EN-JL 1040 for PN16
    Body - Ductile Iron EN-JS 1050 for PN25
    Cover - Ductile Iron EN-JS 1050 for PN25
    Side Plug: Brass CuZn39Pb3
    Hanger Pin: Stainless Steel BS970 420S37
    Hanger: Ductile Iron EN-JS 1050
    Disc -Cast Iron EN-JL 1040
    Disc Trim: EPDM Commercial
    Body Trim: Bronze EN1982 CC491K
    Gasket: Graphite Non-asbestos
    Double door:
    Body: Ductile Iron EN-JS 1050
    Disc: Stainless Steel BS970 304S15
    Seat: EPDM Commercial
    Hinge Pin: Stainless Steel BS970 420S37
    Stop Pin: Stainless Steel BS970 420S37
    Pin Retainer: Stainless Steel BS970 304S15
    Spring: Stainless Steel BS970 304S15
    Washer PTFE Commercial
    Gasket: EPDM Commercial

    Surface treatment:

    Internally and externally liquid epoxy painted or fusion bonded epoxy powder coated (FBE).
    Fusion bonded epoxy coating 150 -300 microns.

    Connections:

    Flanged: According to EN 1092-2
    Grooved ends: According to ISO 4200
    Wafer: According to EN1092-2

    Marking:

    IMI, PN, DN, and flow direction arrow.

    Approvals:

    PN16 Grooved ends: WRAS

    Colour:

    Blue RAL5015

    Articles - Double door

    PN 25

    DN
    D
    D1
    L
    kg
    Kvs
    EAN
    Article No
    50
    66
    106
    54
    1,8
    36,6
    5902276802270
    43350-228350
    65
    78
    126
    54
    2,4
    58,7
    5902276802287
    43350-228365
    80
    90
    141
    57
    3,2
    83,6
    5902276802294
    43350-228380
    100
    115
    167
    64
    4,8
    152,6
    5902276802300
    43350-228390
    125
    141
    191
    70
    7,3
    238,5
    5902276802317
    43350-228391
    150
    170
    222
    76
    10
    343,4
    5902276802324
    43350-228392
    200
    210
    282
    95
    14,2
    616,5
    5902276802331
    43350-228393
    250
    273
    339
    108
    23,6
    969,1
    5902276802348
    43350-228394
    300
    324
    399
    143
    37,5
    1401,0
    5902276802355
    43350-228395
    350
    356
    456
    184
    62
    1702,4
    5902276802362
    43350-228396
    400
    406
    513
    191
    74
    2262,0
    5902276802379
    43350-228397

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

    Articles - Flanged

    PN 16

    DN
    D
    D1
    L
    H
    kg
    Kvs
    EAN
    Article No
    50
    -
    -
    203
    125
    11,5
    40,7
    5902276802485
    43350-336250
    65
    -
    -
    216
    137
    13
    65,2
    5902276802492
    43350-336265
    80
    -
    -
    241
    147
    17
    92,9
    5902276802508
    43350-336280
    100
    -
    -
    292
    166
    25
    169,6
    5902276802515
    43350-336290
    125
    -
    -
    330
    190
    40
    265
    5902276802522
    43350-336291
    150
    -
    -
    356
    217
    50
    381,5
    5902276802539
    43350-336292
    200
    -
    -
    495
    265
    58,3
    658
    5902276802546
    43350-336293
    250
    -
    -
    622
    300
    218
    1076,8
    5902276802553
    43350-336294
    300
    -
    -
    699
    342
    282
    1556,7
    5902276802560
    43350-336295
    350
    -
    -
    787
    402
    500
    1891,5
    5902276802577
    43350-336296
    400
    -
    -
    914
    472
    680
    2513,3
    5902276802584
    43350-336297
    450
    -
    -
    914
    500
    780
    3223,3
    5902276802591
    43350-336298
    500
    -
    -
    1016
    514
    1000
    4021,4
    5902276802607
    43350-336299
    600
    -
    -
    1219
    605
    1600
    5882,4
    5902276802478
    43350-336200

    PN 25

    DN
    D
    L
    H
    kg
    Kvs
    EAN
    Article No
    50
    -
    203
    125
    11,5
    40,7
    5902276802386
    43350-326350
    65
    -
    216
    137
    13
    65,2
    5902276802393
    43350-326365
    80
    -
    241
    147
    17
    92,9
    5902276802409
    43350-326380
    100
    -
    292
    166
    25
    169,6
    5902276802416
    43350-326390
    125
    -
    330
    190
    40
    265,0
    5902276802423
    43350-326391
    150
    -
    356
    217
    50
    381,5
    5902276802430
    43350-326392
    200
    -
    495
    265
    58,3
    658,0
    5902276802447
    43350-326393
    250
    -
    622
    300
    218
    1076,8
    5902276802454
    43350-326394
    300
    -
    699
    342
    282
    1556,7
    5902276802461
    43350-326395

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

    Articles - Grooved ends

    PN 16

    DN
    D
    L
    H
    H1
    kg
    Kvs
    EAN
    Article No
    50
    60,3
    99
    47
    36
    11,5
    40,7
    5902276802614
    43350-329250
    65 1)
    73,0
    99
    57
    45
    13
    65,2
    5902276802768
    43350-325265
    65
    76,1
    99
    57
    45
    13
    65,2
    5902276802621
    43350-329265
    80
    88,9
    108
    68
    49
    17
    92,9
    5902276802638
    43350-329280
    100
    114,3
    254
    99
    76
    25
    169,6
    5902276802645
    43350-329290
    125
    139,7
    267
    114
    111
    40
    265,0
    5902276802652
    43350-329291
    125 1)
    141,3
    267
    114
    111
    40
    265,0
    5902276802775
    43350-325291
    150
    168,3
    292
    127
    105
    50
    381,5
    5902276802669
    43350-329292
    200
    219,1
    356
    154
    130
    58,3
    658,0
    5902276802676
    43350-329293
    250
    273
    732
    188
    163
    218
    1076,8
    5902276802683
    43350-329294
    300
    323,9
    495
    205
    188
    282
    1556,7
    5902276802690
    43350-329295

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

    1) Not conforming to ISO 4200.

    TA-NRV_F_Double_door

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    TA-NRV_F_Double_door_persp

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