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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
                铬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!