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                V230/V231D self operated pressure regulating valve

                V230/V231D self operated pressure regulating valve
                • sell:021-32051999
                • sell:021-32050777
                • fax:021-66099555

                Details

                • Product Introduction
                • Service Promise
                • Ordering Process

                V230D/V231D self-acting pressure (differential pressure) regulating valve is composed of membrane (piston) actuator, valve body, valve seat, valve core, balance spring and other components. It is a kind of valve which can automatically adjust the pressure without external energy and only rely on the change of the pressure of the regulated medium itself. It is produced by introducing the controlled medium into the actuator according to the mechanical principle. The energy-saving products with constant or reduced pressure in front or behind the valve are suitable for the pressure control of non-corrosive liquids, gases, steam and other media. They are widely used in petroleum, chemical, metallurgical, light industry and urban heating and heating systems.


                Product characteristics of self operated pressure (differential pressure) regulating valve


                The greatest characteristic of self-operated pressure (differential pressure) regulating valve is that it can work in the place without electricity and gas, and the pressure setting value can be adjusted at will during operation.


                This product has nominal pressure PN1.6, 2.5, 4.0; nominal diameter range 20 300 mm; service temperature 300 Various varieties available.


                Type specification of self pressure (differential pressure) regulating valve

                category
                Pressure control valve
                Differential pressure control valve
                Valve rear pressure regulating valve
                Pressure regulating valve before valve
                Differential pressure rising valve closing type
                Differential pressure rising valve open type
                Hard seal
                Soft seal
                Hard seal
                Soft seal
                Hard seal
                Soft seal
                Hard seal
                Soft seal
                Model
                V230D01
                V231D01
                V230D02
                V231D02
                V230D03
                V231D03
                V230D04
                V231D04
                Specifications
                DN15~200
                Self operated pressure (differential pressure) regulating valve main parts material


                Material code
                C(WCB)
                P(304)
                R(316)
                main
                Spare parts
                valve body
                WCB(ZG230-450)
                ZG1Cr18Ni9Ti(304)
                ZG1Cr18Ni12Mo2Ti(316)
                Valve core and valve seat
                1Cr18Ni9Ti(304)
                1Cr18Ni9Ti(304)
                1Cr18Ni12Mo2Ti(316)
                Stem
                1Cr18Ni9Ti
                1Cr18Ni9Ti
                1Cr18Ni12Mo2Ti
                diaphragm
                EPDM或FKM夹纤维
                Membrane cover
                A3钢镀锌
                filler
                聚四氟@ 乙烯,柔性石墨
                Spring
                60Si2Mn


                Main technical parameters of self operated pressure (differential pressure) regulating valve
                Nominal pathDN(mm)
                20
                25
                32
                40
                50
                65
                80
                100
                125
                150
                200
                Rated discharge coefficientKv
                6.3
                8
                16
                20
                32
                50
                80
                125
                160
                320
                450
                Noise measurement coefficient Z value
                0.6
                0.6
                0.55
                0.55
                0.5
                0.5
                0.45
                0.4
                0.35
                0.3
                0.2
                Allowable pressure difference
                1.6(MPa)
                1.6
                1.5
                1.2
                1.0
                4.0(MPa)
                2.0
                1.5
                1.2
                1.0
                Nominal pressure(MPa)
                1.6 2.5 4.0
                Adjustment precision(%)
                ±5
                working temperature(℃)
                Liquid < 140; Gas < 80; Condenser < 200; Condenser and radiator < 350; Condenser and extension < 300;
                Applicable medium
                Holding water, gas, steam, low viscosity medium
                Pressure balance element
                corrugated pipe
                Rolldiaphragm
                Allowable leakage
                Hard seal(L/h)
                Less than 4 * 10-4 * valve rated capacity
                Soft seal
                10Bubble/min
                20Bubble/min
                40Bubble/min
                Maximum working pressureMPa
                Relationship between Nominal pressure (delta Pmax and working pressure and working temperature)
                Self actuating pressure (differential pressure) regulating valve actuator
                Model
                V230D01(D03) V231D01(D03)
                V230D02(D04) V231D02(D04)
                effective areacm2
                32※
                80※
                250
                630
                32※
                80※
                250
                630
                Pressure setting rangeMPa
                0.3~1.2
                0.1~0.6
                0.015~0.15
                0.005~0.035
                0.3~1.1
                0.1~0.5
                0.015~0.12
                0.005~0.035
                0.8~1.6
                0.05~0.3
                0.01~0.07
                1.0~1.6
                0.05~0.25
                0.01~0.06
                Ensure minimum pressure difference for normal working pressure.△P MPa
                ≥0.05
                ≥0.04
                ≥0.01
                ≥0.05
                ≥0.05
                ≥0.04
                ≥0.01
                ≥0.05
                Allow maximum pressure difference between upper and lower membrane chambers.MPa
                2.0
                1.25
                0.4
                0.15
                2.0
                1.25
                0.4
                0.15
                Tripmm
                18
                18
                23
                23
                18
                18
                23
                23
                Control pipeline, connector
                Copper tube or steel pipe 10 * 1; card sleeve joint R1/4 "

                Note: the pressure setting range is not applicable to DN150~200.


                Self operated pressure (pressure difference) regulating valve structure

                1
                valve body
                2
                valve seat
                3
                Valve shaft
                4
                Valve cover
                5
                Membrane cover
                6
                diaphragm
                7
                Spring
                8
                Adjusting nut
                9
                Pressure tube
                10
                corrugated pipe
                11
                balancediaphragm
                12
                Filling valve
                Main dimensions of self operated pressure (differential pressure) regulating valves
                Body size
                Nominal pathDN(mm)
                15
                20
                25
                32
                40
                50
                65
                80
                100
                125
                150
                200
                L(mm)
                130
                150
                160
                180
                200
                230
                290
                310
                350
                400
                480
                600
                B(mm)
                212
                212
                238
                238
                240
                240
                275
                275
                380
                380
                295
                325
                Actuator size
                effective areacm2
                32
                80
                250
                630
                ΦR(mm)
                172
                172
                263
                380
                H
                D01(D03)
                435
                430
                470
                520
                D02(D04)
                440
                435
                440
                520

                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.V230/V231D self operated pressure regulating 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!