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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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