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Special copper fixed ball valve for oxygen


Product model: YQ347F

Nominal diameter: DN15-200mm

Nominal pressure: PN1.6-4.0Mpa

Valve body material: 16-4 silicon brass

Operating temperature: - 20 ~ 150 ℃

Applicable medium: oxygen, nitrogen, air, etc

Design standard: GB12237-89

Structure length: GB12221-89

Connecting flange: GB / T 9113-2000; JB/T79-94

Test and inspection: JB / T 9092-99


PRODUCT OVERVIEW

The special copper fixed ball valve for oxygen belongs to the special valve for oxygen pipeline. In addition to the characteristics of ordinary valves, it is made of high-quality copper or stainless steel, and has the advantages of corrosion resistance, good flame retardant performance, good conductivity and fast heat transfer. It is designed with anti-static and fire-resistant structure, and all parts are strictly degreased during assembly. The valve body and other parts are made of high-quality silicon brass, pickled, passivated, inspected and tested. The high-pressure sealing test is carried out with pure tap water without any grease. The leakage test is carried out with 0.6MPa gas, and the valve has no leakage; After special process treatment, this kind of ball valve not only has fast and convenient operation, small flow resistance, safety and reliability, but also has long service life (small flushing of sealing pair).


PRODUCT FEATURES

1. All parts shall be degreased strictly during assembly.

2. In addition, the long-term sealing of sealing grease makes the operation more flexible.

3. A conductive spring is arranged between the valve rod and the valve body and between the valve rod and the ball, which has a fireproof and antistatic structure.


PRESSURE TEST AND PERFORMANCE PARAMETERS

Nominal pressure(MPa)

1.6

2.5

4.0

Hydraulic strength test pressure(MPa)


2.4

3.75

6

1.76

2.75

4.4

Pneumatic seal test pressure(MPa)

1.76

2.75

4.4

1.76

2.75

4.4

working temperature

-20~150℃

Applicable media

Oxygen, nitrogen, air, etc


MATERIAL OF MAIN PARTS

Part name

valve body

sphere

Valve stem

Handle

Gasket, packing, sealing ring

Material Science

16-4Silicon brass

Stainless steel or copper alloy

Stainless steel

Carbon steel

Teflon


MAIN CONNECTION SIZE AND WEIGHT(PN1.6MPa

Nominal diameterDN

15

20

25

32

40

50

65

80

100

125

150

200

L

130

140

150

165

180

200

220

250

280

320

360

400

H

59

63

75

85

95

107

140

152

178

252

272

342

W

130

130

160

180

230

230

400

400

650

1050

1050

1410

Wt(㎏)

2.5

3

5

6

7

10

15

19

33

58

93

160


MAIN CONNECTION SIZE AND WEIGHTPN2.5MPa

Nominal diameterDN

15

20

25

32

40

50

65

80

100

125

150

200

L

130

140

150

165

180

200

220

250

320

400

400

550

H

59

63

75

97

107

142

152

178

252

272

342

345

W

130

130

160

230

230

400

400

700

1100

1100

1500

1500

Wt(Kg)

------------


MAIN CONNECTION SIZE AND WEIGHTPN4.0MPa

Nominal diameterDN

15

20

25

32

40

50

65

80

100

125

150

200

L

130

140

150

180

200

220

250

280

320

400

400

550

H

59

63

75

97

107

142

152

178

252

272

342

345

W

130

130

160

230

230

400

400

700

1000

1100

1500

1800

Wt(Kg)

------------

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