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        ZL-4M (ZL47F) Series of Self-operated Flux Control Valve
        Patent Number: 01267874.0


        Product Introduction
        ZL-4M (ZL47F) series of self-operated flux control valve is a kind of valve that can fix the flux automatically and balance the hydraulic regime. It can be set with different flux according to customers demand and can maintain constant flux by itself. It can be used in some areas that need fixed flux in the water system of centralized heat-supply and centralized air-conditioning to make the whole pipeline regulated at one process and the regulating process simplified into a process of flux distribution. Further it is avoided that the flux re-distribution might need during heat source switching process and thus prevented the hydraulic maladjustment of the pipeline.
           
        Function & Characteristics

        ●With flux control precision ±5%
        ●The flux can be set as per the needs of controlled pipeline and settings can be   locked. 
        ●Excess pressure head can be eliminated automatically from the pipeline
        ●No interference occur when flux is regulated between branch pipes and sub-branch pipes
        ●Direct display of flux and number of turns to be opened 
        ●Nominal pressure: 1.6MPa2.5MPa;
        ●Medium temperature: 0-150°C
        ●Working pressure difference: 20-600KPa;
        ●Valve body material: Grey cast iron, cast carbon steel, forged copper alloy
        ●Inner parts material: Copper alloy, stainless steel 

        Instruction for type selection
        Reduced type should be avoided unless when the flux is extremely low.  

        DN

        L

        H1

        H

        Flux m3/h

        20

        110

        53

        128

        0.1-1.5

        25

        125

        53

        128

        0.2-2

        32

        180

        174

        332

        0.5-4

        40

        200

        158

        321

        1-6

        50

        230

        169

        362

        2-10

        65

        290

        212

        415

        3-15

        80

        310

        240

        450

        5-25

        100

        350

        260

        530

        10-35

        125

        400

        320

        560

        15-50

        150

        480

        350

        700

        20-80

        200

        495

        380

        750

        40-160

        250

        622

        500

        1250

        75-300

        300

        698

        500

        1140

        100-450

        350

        787

        500

        1050

        200-650

        400

        978

        630

        935

        250-900

        450

        978

        695

        1030

        280-1100

        500

        1016

        575

        1025

        320-1400

        600

        1295

        872

        1310

        380-1750

        700

        1448

        952

        1407

        450-1900

         

         
         
        Copyright@2009 Balance valve Co., Ltd. All rights reserved
        Tel:0086-0317-4642390 Fax:0086-0317-4644888 E-mail:info@hbbv.com.cn
         
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