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                Duplex spring safety valve

                Duplex spring safety valve
                • sell:021-32051999
                • sell:021-32050777
                • fax:021-66099555

                Details

                • Product Introduction
                • Service Promise
                • Ordering Process

                The double spring type safety valve is suitable for the equipment and pipeline of steam, water and other media with working temperature < 350 C. As an overpressure protection device.


                The materials of A38Y, A43H and A37H double spring relief valves are the same as those of A47H and A48Y spring relief valves except three-way (WCB).


                Type A38Y, A43H, and A37H double safety valves are constructed by installing two A48Y or A47H safety valves of the same specification on the Y-joint. The nominal diameter series refers to the inlet diameter of the Y-joint. The combination of these two safety valves is as follows:

                A38Y双联型
                相应的A48Y型
                50
                32×2
                80
                50×2
                100
                65×2
                150
                100×2
                A43Y双联型
                相应的A47Y型
                50
                32×2
                80
                50×2
                100
                80×2
                125
                100×2
                150
                125×2
                A37Y双联型
                相应的A47Y型
                50
                32×2
                80
                65×2
                100
                80×2
                125
                100×2
                150
                125×2

                Main dimensions


                型号
                公称通径
                do
                D
                K
                g
                g1
                b
                f
                f1
                Z-?d
                DN'
                D1
                K1
                g2
                b1
                f'
                Z1-?d1
                L
                L1
                L0
                h
                H
                A37H-16C A43H-16C
                50
                25
                165
                125
                100
                20
                3
                4-18
                32
                140
                100
                78
                18
                2
                4-18
                115
                110
                165
                235
                547


                80
                40
                200
                160
                135
                20
                3
                8-18
                50
                165
                125
                100
                16
                3
                4-18
                135
                120
                190
                285
                795


                80
                50
                200
                160
                135
                20
                3
                8-18
                65
                185
                145
                120
                18
                3
                4-18
                140
                130
                205
                310
                835


                100
                65
                220
                180
                155
                22
                3
                8-18
                80
                200
                160
                135
                20
                3
                8-18
                160
                135
                255
                355
                890


                125
                80
                250
                210
                185
                22
                3
                8-18
                100
                220
                180
                155
                22
                3
                8-18
                170
                160
                260
                410
                1170


                150
                100
                285
                240
                210
                24
                3
                8-23
                125
                250
                210
                185
                22
                3
                8-18
                190
                190
                275
                430
                1240


                A37H-25 A43H-25
                50
                25
                165
                125
                100
                20
                3
                4-18
                32
                140
                100
                78
                18
                2
                4-18
                115
                110
                165
                235
                547


                80
                40
                200
                160
                135
                22
                3
                8-18
                50
                165
                125
                100
                16
                3
                4-18
                135
                120
                190
                285
                795


                80
                50
                200
                160
                135
                22
                3
                8-18
                65
                185
                145
                120
                18
                3
                4-18
                140
                130
                205
                310
                835


                100
                65
                230
                190
                160
                24
                3
                8-23
                80
                200
                160
                135
                20
                3
                8-18
                160
                135
                255
                355
                890


                125
                80
                270
                220
                188
                28
                3
                8-26
                100
                220
                180
                155
                22
                3
                8-18
                170
                160
                260
                410
                1170


                150
                100
                300
                250
                218
                30
                3
                8-26
                125
                250
                210
                185
                22
                3
                8-18
                190
                190
                275
                430
                1240


                A37H-40 A43H-40
                50
                25
                165
                125
                100
                88
                20
                3
                4
                4-18
                32
                140
                100
                78
                16
                2
                4-18
                115
                110
                165
                235
                547
                80
                40
                200
                160
                135
                121
                22
                3
                4
                8-18
                50
                165
                125
                100
                16
                3
                4-18
                135
                120
                190
                285
                795
                80
                50
                200
                160
                135
                121
                22
                3
                4
                8-18
                65
                185
                145
                120
                18
                3
                4-18
                140
                130
                205
                310
                835
                100
                65
                235
                190
                160
                150
                24
                3
                4.5
                8-23
                80
                200
                160
                135
                20
                3
                8-18
                160
                135
                255
                355
                890
                125
                80
                270
                220
                188
                176
                28
                3
                4.5
                8-26
                100
                220
                180
                155
                22
                3
                8-18
                170
                160
                260
                410
                1170
                150
                100
                300
                250
                218
                204
                30
                3
                4.5
                8-26
                125
                250
                210
                185
                22
                3
                8-18
                190
                190
                275
                430
                1240
                A38Y-16C
                50
                20
                165
                125
                100
                20
                3
                4-18
                40
                150
                110
                85
                16
                3
                4-18
                198
                100
                165
                225
                636


                80
                32
                200
                160
                135
                20
                3
                8-18
                65
                185
                145
                120
                20
                3
                4-18
                230
                120
                190
                265
                817


                100
                40
                220
                180
                155
                22
                3
                8-18
                80
                200
                160
                135
                20
                3
                8-18
                293
                140
                265
                265
                921


                150
                80
                285
                240
                210
                24
                3
                8-23
                125
                250
                210
                185
                22
                3
                8-18
                320
                175
                250
                420
                1097


                A38Y-25
                50
                20
                165
                125
                100
                20
                3
                4-18
                40
                150
                110
                85
                16
                3
                4-18
                198
                100
                165
                225
                636


                80
                32
                200
                160
                135
                22
                3
                8-18
                65
                185
                145
                120
                20
                3
                4-18
                230
                120
                190
                265
                817


                100
                40
                230
                190
                160
                24
                3
                8-23
                80
                200
                160
                135
                20
                3
                8-18
                293
                140
                265
                265
                921


                150
                80
                300
                250
                218
                30
                3
                8-26
                125
                250
                210
                185
                22
                3
                8-18
                320
                175
                250
                420
                1097


                A38Y-40
                50
                20
                165
                125
                100
                88
                20
                3
                4
                4-18
                40
                150
                110
                85
                16
                3
                4-18
                198
                100
                165
                225
                636
                80
                32
                200
                160
                135
                121
                22
                3
                4
                8-18
                65
                185
                145
                120
                20
                3
                4-18
                230
                120
                190
                265
                817
                100
                40
                235
                190
                160
                150
                24
                3
                4.5
                8-23
                80
                200
                160
                135
                20
                3
                8-18
                293
                140
                265
                265
                921
                150
                80
                300
                250
                218
                204
                30
                3
                4.5
                8-26
                125
                250
                210
                185
                22
                3
                8-18
                320
                175
                250
                420
                1097


                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.Duplex spring safety 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!