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    Insulation stop valve

    Location:Home > Insulation stop valve

    Stainless steel thermal insulation valve with jacket globe valve BJ45W

    Date:[2017-03-15]    hits: Stainless steel thermal insulation valve with jacket globe valve BJ45W

    Stainless steel valve BJ45W cut-off valve structure features are as follows:

    Plug valve cover, rod support and lift stem metal seal.

    BJ45W valve body and valve cover connection form

    Class150~Class900 uses the plug valve cover; Class1500~Class2500 uses the self pressure seal valve cover.

    BJ45W valve cover gasket type

    Class150~Class300 valve with stainless steel graphite spiral wound gasket; Class600 valve can be made of stainless steel graphite spiral wound gasket can be used metal ring gasket; Class900 valve can be used metal ring gasket, Class1500~Class2500 valve with self sealing ring.

    BJ45W operating mode of thermal insulation stop valve

    Under normal circumstances, the use of hand wheel, impact hand wheel or gear transmission mode, according to the user needs to use sprocket drive or electric drive.

    Insulation stop valve BJ45W packing seal

    Generally, it is used as filler material, and can provide PTFE or composite filler material according to user's requirement. Packing and stuffing the contact surface roughness of 3.2 m, can guarantee the stem and packing contact surface bonded but is free to rotate through the precision machining of the valve stem sealing surface roughness of 0.8 m can ensure reliable sealing valve.

    Spring loaded packing impact system

    If the customer needs, can be used to fill the spring packing shock system to provide the durability and reliability of packing seal.

    Upper seal seat design

    All the valves provided by our company have reverse seal design. Under normal circumstances, carbon steel globe valve seat design uses a separate inverted seal structure, the stainless steel valve sealing when the direct processing or welding process. When the valve in the fully open position, the sealing surface is very reliable. Although according to the standard API600 has a reverse seal, but this is not used as a basis for replacement of packing in the case of pressure.

    valve seat

    Carbon steel valve seat is usually used forged steel material, the sealing surface of the valve seat according to customer requirements for spray welding alloy, NPS is less than 10''valve using a split threaded into the valve seat, if the user needs the welding seat structure may also be provided; NPS = 12 valve seat structure by welding; stainless steel valve seat is generally used integral or in body welding hard alloy after direct machining of valve seat. If the user needs, stainless steel valve seat can also be used in the separation of screw thread and welded seat structure.

    Stem design

    The whole forging process is adopted, and the minimum diameter is determined according to the standard requirements.

    Stem nut

    Under normal circumstances, the stem nut material using ASTM A439D2. According to the materials with copper alloy such as user requirements, the valve of large diameter (NPS = 10''Class150; NPS = 8''Class300; NPS = 6''Class600; NPS = 5''Class900), stem nut and stem bracket design of rolling bearings, can effectively reduce the torque of the valve opening closing valve can easily switch.

    Special stop valve

    First, BJ45H/W angle insulation valve overview:

    The valve is suitable for chemical industry, chemical fertilizer industry pipeline, the jacket into the steam can prevent the crystallization of the media.

    Two, BJ45H/W angle type stop valve structure:

    Three, BJ45H/W angle insulation valve design standards:

    Design and manufacture: GB12233

    Flange size: JB/T79 GB9113

    Structure length: GB12221

    Inspection and testing: GB/T13927

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    Four, BJ45H/W angle insulation valve performance specification:

    型號

    公稱壓力

    試驗壓力

    適用溫度

    適用介質

    保溫套壓力

    Shell

    Seal

    BJ45W-25P

    2.5

    3.75

    2.75

    ≤200

    Acetic urea

    ≤1.3

    BJ45W-40P

    4.0

    6.0

    4.4

    BJ45W-64P

    6.4

    9.0

    6.6

    Acetic urea

    BJ45W-25P

    2.5

    3.75

    2.75

    BJ45W-40P

    4.0

    6.0

    4.4

    BJ45W-64P

    6.4

    9.0

    6.6

    Five, BJ45H/W angle insulation valve main parts material:

    零件名稱LTEM

    ZG1CR18NI9TI系列

    ZGOOCR18NI10系列

    ZG1Cr18Ni12MO2Ti系列

    ZGOOCR17NI14MO2系列

    WCB系列

    閥體/閥蓋世BODY/CAP

    ZG1CR18NI9TI

    ZGOOCR18NI10

    ZG1Cr18Ni12MO2Ti

    ZGOOCR17NI14MO2

    WCB

    閘板WEDGE

    ZG1CR18NI9TI

    ZGOOCR18NI10

    ZG1Cr18Ni12MO2Ti

    ZGOOCR17NI14MO2

    1Cr13

    閥桿STEM

    1CR18NI9TI

    00cr18ni10

    1CR18NI12MOTI

    OOCR17NI14MO 

    1Cr13

    填料PACKING

    PTFE紡織

    PTFE紡織

    PTFE紡織

    PTFE紡織

    石墨
    GRAPHITE

    墊片GASKET

    304L+PTFE

    304L+PTFE

    316L+PTFE

    316L+PTFE

    石墨+304
    GRAPHITE+304

    壓蓋GLAND FLANGE

    ZG1CR18NI9TI

    ZG00CR18ni10

    ZG1Cr18Ni12MO2Ti

    ZGOOCR17NI14MO2

    WCB

    填料壓環
    STUFFING RING

    1CR18NI9TI

    00CR18NI10

    1Cr18NI12MOTI

    OOCR17NI14MO  

    1Cr13

    螺栓BOLT

    1cr17ni2

    1CR17NI2

    1Cr17NI2

    1Cr17Ni2

    35CrMoA

    螺母NUT

    1cr18ni9ti

    1CR18NI9TI

    1Cr18NI9ti

    1Cr18NI9ti

    45

    GB 2.5MPa

    DN

    15

    20

    25

    32

    40

    50

    65

    80

    100

    125

    150

    L

    170

    190

    210

    230

    260

    300

    340

    380

    430

    -

    550

    H

    260

    310

    375

    375

    385

    450

    485

    600

    625

    735

    790

    D0

    120

    140

    160

    160

    160

    240

    240

    280

    320

    360

    360

    GB 4.0MPa

    DN

    15

    20

    25

    32

    40

    50

    65

    80

    100

    125

    150

    L

    170

    190

    210

    230

    260

    300

    340

    380

    430

    -

    550

    H

    260

    310

    375

    375

    385

    450

    485

    600

    625

    735

    790

    D0

    120

    140

    160

    160

    160

    240

    240

    280

    320

    360

    360

    GB 6.4MPa

    DN

    25

    32

    50

    65

    100

    150

    L

    235

    260

    300

    340

    430

    415

    H

    375

    385

    450

    510

    670

    670

    D0

    160

    160

    240

    240

    400

    400

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