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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雙聯(lián)型
            相應的A48Y型
            50
            32×2
            80
            50×2
            100
            65×2
            150
            100×2
            A43Y雙聯(lián)型
            相應的A47Y型
            50
            32×2
            80
            50×2
            100
            80×2
            125
            100×2
            150
            125×2
            A37Y雙聯(lián)型
            相應的A47Y型
            50
            32×2
            80
            65×2
            100
            80×2
            125
            100×2
            150
            125×2

            Main dimensions


            型號
            公稱通徑
            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!
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