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    Your position:Home>Valve>Welding ball valve

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    Welding ball valve

    Dateline:2014-11-30    Hits:

    Platform design uses the standard, without connecting bracket and the shaft sleeve, so that the actuator installation easier

    A valve stem, leak proof design

    1, with blowout proof stem design

    2, the first stage seal, tapered stem sealing pad effectively prevent leakage of medium in the valve stem rotation process, and in abnormal pressure condition, also can prevent the leakage effectively

    3, the second stage seal, a group of V type combined filler after being compressed to the two sides to expand, thereby preventing leakage

    4 preload, the release of the dish shaped spring, abrasion of the sealing pad automatic compensation and the valve stem packing

    5, the use of sealing system of stem nut pressing all stem, prevent leakage

    6, the stopping pad fixed stem nut, preventing its release

    Two, a manual locking design

    Switch lock risk prevent accidental mistaken operation maintain valve position existing when necessary. Valve platform and handle with a lock, used padlock the valve in the closed position or the opening and locking

    A, use and performance

    Working temperature models of nominal pressure test pressure (c) applicable medium

    Strength (water) Mpa (water) sealed air (Mpa) low pressure seal (air) Mpa

    Q41F-16C 1.6 2.4 1.8 0.6 = 150 nitrate - acid

    Q41F-25C 2.5 3.8 2.8 0.6 = 150 nitrate - acid

    Q41F-40C 4 6 4.4 0.6 = 150 nitrate - acid

    Two, the material of main parts:

    Part name materials

    Q41F-16C-25C-40C Q41F-16R-25P-40R

    Chromium nickel molybdenum titanium valve WCB/304

    Sphere

    The valve stem

    Three, the main dimensions and connection dimensions:

    Types of nominal diameter DN size (mm)

    L D D1 D2 H B-F D Do with Z-

    Q41F-16C 1513095654560 14-2 4-14 108

    20140105755564 14-2 4-14 120

    25150115856590 16-2 4-14 165

    3216513510078105 16-2 4-18 180

    4018014511085150 16-3 4-18 240

    50200160125100190 16-3 4-18 240

    65220180145120195 18-3 4-18 320

    80250195160135215 20-3 8-18 350

    100280215180155250 20-3 8-18 400

    125320245210185280 22-3 8-18 500

    150360280240210320 24-3 8-23 600

    200400335295265370 26-3 12-23 800

    Q41F-25C 4018014511085160 16-3 4-18 240

    50200160125100205 20-3 4-18 270

    65220180145120215 22-3 8-18 350

    80250195160135230 22-3 8-18 400

    100280230190160270 24-3 8-23 500

    125320270220188300 28-3 8-25 600

    150360300250218340 30-3 8-25 900

    200400360310278400 34-3 12-25 1100

    Q41F-40C 1513095654560 16-2 4-14 40

    20140105755565 16-2 4-14 51

    25150115856590 18-2 4-14 58

    3218013510078105 18-3 4-18 66

    4020014511085170 18-3 4-18 76

    50220160125100230 20-3 4-18 88

    65250180145120250 22-3 8-18 110

    80280195160135250 22-3 8-18 121

    100320230190160295 24-3 8-23 150

    125400270220188330 28-3 8-25 176

    150400300250218375 30-3 8-25 204

    200550375320282440 38-3 12-30 260


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