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Q41H/Q41Y manual floating hard sealed ball valve

The Q41H/Q41Y manual floating hard sealed ball valve adopts metal to metal sealing for the ball and valve seat, and the valve seat adopts a sealing structure loaded with plate springs, which breaks through the limitations of low temperature and unsuitable use of granular media in soft sealed ball valves.Hard sealed ball valves are used in devices and pipelines for high-temperature and high-pressure water, steam, oil, viscous and particulate media. Especially suitable for situations where the medium is viscous, contains particles, and has fiber properties.Widely used in industrial automatic control systems such as petroleum, chemical industry, teaching equipment, light industry, high-pressure equipment, pharmaceuticals, paper making etc.
Product features:

  1. The valve seat adopts a sealing structure loaded with plate springs, which can use high temperatures and granular media;
  2. Adopting a bottom mounted valve stem and equipped with an inverted sealing structure, it can ensure reliable sealing at the packing area;
  3. The ball can be designed as an anti-static structure, with conductive springs installed between the ball and the valve stem, as well as between the valve stem and the valve body, to prevent static electricity from igniting flammable substances and ensure system safety;
  4. The sphere and sealing surface are treated by nitriding, welding, spraying and other methods, which can meet different process requirements;
  5. An auxiliary sealing structure can be installed at the valve seat of the ball valve, and a grease valve can be added to the valve seat and valve stem£¬in emergency situations, it can be temporarily sealed and the valve stem can be extended as needed to be suitable for buried laying;
  6. Pneumatic and electric actuators can be installed to achieve centralized and remote control.
  7. Advanced valve seat: The valve seat is designed based on years of experience in ball valve manufacturing, ensuring valve sealing, low friction coefficient, small operating torque, multiple valve seat materials, and a wide range of applications.
  8. An error free switch handle: using a flat head valve stem, the connection with the handle will not be misaligned, ensuring that the switch status indicated by the handle is consistent with that of the valve.
  9. Locking device: To prevent misoperation of valve opening and closing, there are locking holes in the fully open and fully closed positions of the valve to ensure that it is in the correct position.
  10. Valve stem anti flying structure: The valve stem is bottom mounted to prevent pressure from flying out. At the same time, it can form metal contact with the valve body after a fire, ensuring that the valve stem is sealed.

Execution standards:
Design and manufacturing: GB/T12237-2007
Structural length: GB12221-2005
Supply requirements: GB/T12252-2005
Pressure test: GB/T13927-2008
Pressure testing and inspection: GB/T13927-1992
Flange standard: GB9113/JB79
Connection standard: GB/T9119-2010

Performance parameters:

Q41H/Q41Y Manual floating hard seal ball valve performance parameters

Pressure rating£¨MPa£©

1.6

2

4

6.4

Valve strength test pressure£¨MPa£©

2.4

3

6

9.6

Valve sealing test pressure£¨MPa£©

1.76

2.2

4.4

7.04

Applicable Temperature¡æ

©196¡æ¡«550¡æ

Main Material

High quality cast steel WCB

Connection form

Flange

Opening and closing form

Manual handle

Applicable Medium

Water, steam, oil, viscous and particulate media

Connection Standard

GB/T9119-2010

Main component materials:

Q41H/Q41Y Manual Floating Hard Seal Ball Valve Main Component Materials

Serial Number

Material standard part name

Material grade

Carbon Steel

Stainless steel

GB

ASTM

GB

ASTM

01

Valve body

WCB

A216-WCB

ZG1Cr18Ni9Ti
ZG1Cr18Ni12Mo2Ti

CF8/CF8M/
CF3/CF3M

02

Valve Cover

WCB

A216-WCB

ZG1Cr18Ni9Ti
ZG1Cr18Ni12Mo2Ti

CF8/CF8M/
CF3/CF3M

03

Double headed screw

35CrMoA

A193-B7

1Cr17Ni2

A193-B8M

04

Nut

45

A194-2H

0Cr18Ni

A194-8M

05

Gasket

Metal clip graphite

06

Ball body

2Cr13 Nitriding

A276-410 Nitriding

1Cr18Ni9Ti
1Cr18Ni12Mo2Ti Nitriding

F304/F316
/F304L/F316L
Nitriding

07

Valve seat

2Cr13 Nitriding

A276-410 Nitriding

1Cr18Ni9Ti
1Cr18Ni12Mo2Ti Nitriding

F304/F316
/F304L/F316L
Nitriding

08

Seat support ring

2Cr13

A276-410

1Cr18Ni9Ti
1Cr18Ni12Mo2Ti

F304/F316
/F304L/F316L

09

Valve seat spring

17-7PH

17-7PH

17-7PH

17-7PH

10

Valve seat sealing ring

Graphite

11

Valve Stem

2Cr13

A276-410

1Cr18Ni9Ti
1Cr18Ni12Mo2Ti

F304/F316
/F304L/F316L

12

Thrust bearing

Metal clip PTFE

1, 3

Valve stem packing

Graphite

14

Filler pressure ring

2Cr13

A276-410

1Cr18Ni9Ti
1Cr18Ni12Mo2Ti

F304/F316
/F304L/F316L

15

Filler pressure cover

WCB

A216-WCB

ZG1Cr18Ni9Ti
ZG1Cr18Ni12Mo2Ti

CF8/CF8M/
CF3/CF3M

16

Bolt

35CrMoA

A193-B7

1Cr17Ni2

A193-B8M

17

Positioning plate

2Cr13

A276-410

1Cr18Ni9Ti

304

 

Main connection dimensions and weight:

Q41H/Q41Y-16C Manual Floating Hard Seal Ball Valve External Structure Connection Dimensions

Nominal Diameter DN

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

105

95

107

142

152

178

252

272

342

W

130

130

160

180

230

230

400

400

650

1050

1050

1410

Wt(©K)

2.5

3

5

6

7

10

15

19

33

58

93

160

Q41H/Q41Y-25C Manual Floating Hard Seal Ball Valve External Structure Connection Dimensions

Nominal Diameter DN

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

105

95

107

142

152

178

252

272

342

W

130

130

160

180

230

230

400

400

650

1050

1050

1410

Wt(©K)

2.5

3

5

6.5

9

12

20

25

44

75

105

200

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