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            D41W ventilated butterfly valve

            D41W ventilated butterfly valve
            • sell:021-32051999
            • sell:021-32050777
            • fax:021-66099555

            Details

            • Product Introduction
            • Service Promise
            • Ordering Process

            D41W ventilating butterfly valve/D341W worm wheel ventilating butterfly valve/D641W pneumatic ventilating butterfly valve/D941W electric ventilating butterfly valve is processed into sealing ring with the same material as valve body. Its applicable temperature depends on valve body material selection. The nominal pressure is less than 0.6MPa. It is generally applicable to industrial, metallurgical, environmental protection and other pipelines for ventilation and medium flow regulation.


            Main characteristics of ventilated butterfly valve


            1, the design is novel, reasonable, unique in structure, light in weight, quick in opening and closing.


            2, the operation torque is small, easy to operate, labor-saving and dexterous.


            3, adopt suitable materials to meet low, medium and high temperature and corrosive medium.

            D641W pneumatic ventilation butterfly valveD941W electric ventilating butterfly valve

            Standard for ventilation butterfly valves


            Design standard: GB/T12238-1989 JB/T8692-1998


            Flange joint size: GB/T9115.1-2000


            Structure length: GB/T12221-1989


            Pressure test: GB/T13927-1992; JB/T9092-1999


            Main technical parameters of ventilated butterfly valve


            Nominal path
            DN(mm)
            50~2000
            Nominal pressure
            PN(MPa)
            0.05
            0.25
            0.6
            Test pressure
            strength test
            0.075
            0.375
            0.9
            Seal test
            ≤1%泄漏量
            Applicable medium
            Gas, dusty gas, flue gas and so on.
            Driving form
            Manual, worm and worm gear drive, gas drive and electric drive.


            Material of main parts of ventilation butterfly valve


            Part name
            Material Science
            valve body
            Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chrome molybdenum titanium steel and so on.
            Disc
            Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chrome molybdenum titanium steel and so on.
            Seal ring
            Same as valve body
            Stem
            Carbon steel, 2Cr13, stainless steel, chrome nickel molybdenum titanium steel
            filler
            Fluoroplastics and flexible graphite


            Selection and applicable temperature of sealing materials for ventilation butterfly valves


            Variety of materials
            carbon steel
            Low temperature carbon steel
            Alloy steel
            austenitic stainless steel
            Chromium molybdenum steel
            Code name
            WCB
            LCB
            WC6或 WC9
            C5或or C12
            鉻Cr-18型e、304、316
            12CrMoV
            Maximum temperature resistance
            425℃
            345℃
            595℃
            650℃
            600℃
            560℃
            Minimum temperature e
            -29℃
            -46℃
            -29℃
            -29℃
            -196℃
            -40℃
            Applicable working temperature
            ≤425℃
            ≤345℃
            ≤595℃
            ≤650℃
            ≤600℃
            ≤560℃


            Dimensions of ventilation butterfly valves


            Nominal path
            Structure length (standard value)
            Shape size (reference value)
            Connection size (standard value)
            reference value (kg)
            0.05MPa和0.25MPa
            0.6MPa
            毫米
            英寸
            L
            H
            H0
            A
            B
            D
            D1
            D2
            n-d
            D
            D1
            D2
            n-d
            50
            2
            108
            70
            286
            125
            193
            140
            110
            88
            4-18
            140
            110
            88
            4-14
            14
            65
            21/2
            112
            80
            306
            125
            193
            160
            130
            108
            4-18
            160
            130
            108
            4-14
            15
            80
            3
            114
            95
            334
            125
            193
            190
            150
            124
            4-18
            190
            150
            124
            4-18
            17
            100
            4
            127
            105
            354
            125
            193
            210
            170
            144
            4-18
            210
            170
            144
            4-18
            20
            125
            5
            140
            120
            384
            125
            193
            240
            200
            174
            8-18
            240
            200
            174
            8-18
            25
            150
            6
            140
            132
            409
            125
            193
            265
            225
            199
            8-18
            265
            225
            199
            8-18
            29
            200
            8
            152
            160
            593
            165
            183
            320
            280
            254
            8-18
            320
            280
            254
            8-18
            47
            250
            10
            165
            187
            650
            165
            283
            375
            335
            309
            12-18
            375
            335
            309
            12-18
            67
            300
            12
            178
            220
            715
            165
            283
            440
            395
            363
            12-22
            440
            395
            363
            12-22
            78
            350
            14
            190
            245
            814
            175
            334
            490
            445
            413
            12-22
            490
            445
            413
            12-22
            96
            400
            16
            216
            270
            863
            175
            334
            540
            495
            463
            16-22
            540
            495
            463
            16-22
            130
            450
            18
            222
            297
            918
            175
            334
            595
            550
            518
            16-22
            595
            550
            518
            16-22
            142
            500
            20
            229
            322
            1016
            210
            425
            645
            600
            568
            20-22
            645
            600
            568
            20-22
            191
            600
            24
            267
            377
            1128
            210
            425
            755
            705
            667
            20-26
            755
            705
            667
            20-26
            230
            700
            28
            292
            430
            1233
            210
            425
            860
            810
            772
            24-26
            860
            810
            772
            24-26
            250
            800
            32
            318
            487
            1344
            210
            425
            975
            920
            878
            24-30
            975
            920
            878
            24-30
            320
            900
            36
            330
            537
            1560
            320
            620
            1075
            1020
            978
            24-30
            1075
            1020
            978
            24-30
            410
            1000
            40
            410
            587
            1660
            320
            620
            1175
            1120
            1078
            28-30
            1175
            1120
            1078
            28-30
            510
            1200
            48
            470
            687
            1890
            320
            620
            1375
            1320
            1280
            32-30
            1405
            1340
            1295
            32-33
            720
            1400
            56
            530
            760
            2670
            575
            714
            1575
            1520
            1480
            36-30
            1630
            1560
            1510
            36-36
            1270
            1600
            64
            600
            895
            2810
            575
            714
            1790
            1730
            1690
            40-30
            1830
            1760
            1710
            40-36
            1730
            1800
            72
            670
            995
            3020
            575
            714
            1990
            1930
            1890
            44-30
            2045
            1970
            1918
            44-39
            2750
            2000
            80
            760
            1095
            3220
            656
            810
            2190
            2130
            2090
            48-30
            2265
            2180
            2125
            48-42
            3050


            The best quality, first-class service Qigao creates more value for you!

            "Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

            Product Standards:

            Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

            pre-sale service:

            Product introduction, technical exchange, non-standard product design, troubleshooting。

            Sale service:

            A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

            After sales service:

            1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

            2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

            3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

            4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

            1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

            a、Structure length;

            b、Connection Type;

            c、Nominal diameter, full diameter, reduced diameter, pipe size;

            d、Operating medium and temperature, pressure range;

            e、Tests, inspection standards and other requirements

            2、The factory can configure various types of driving devices according to customer's specific requirements.。

            3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

            4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

             

            Order Process:

            1、Customer purchase list fax to021-33872143,Or call us 021-33872141

            2、Receive customer purchase list, provide valve model selection and quotation (price list)。

            3、Specific agreement: delivery date, special requirements, etc.。

            download Google:

            1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

            a、Structure length;

            b、Connection Type;

            c、Nominal diameter, full diameter, reduced diameter, pipe size;

            d、Operating medium and temperature, pressure range;

            e、Tests, inspection standards and other requirements

            2、The factory can configure various types of driving devices according to customer's specific requirements.。

            3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

            4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time., The rest of the payment will be remitted before shipment to arrange delivery in time.。

            Sale service:

            Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

            For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

            After sales service:

            1、"Qigao" product quality period is from the factory12Month, practiceThree packsService (return, replacement, warranty)。

            2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.,
            In order to further improve product quality。

            3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

            4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

            statement

            1. All text, data and pictures in this article are for reference only.D41W ventilated butterfly valvePlease contact us at 4000-700-665 for details of performance, size and price.
            2. If there is no explanation, this article is original, reprint, please indicate the address of this article, thank you for your cooperation!
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