Double Eccentric Plug Valve

Double Eccentric Plug Valve

Additional information

Size:

1" ~ 4", DN25 ~ DN100

ANSI Class:

150 ~ 600LB, PN16 ~ PN64

Body Materials:

A216 Gr. WCB(ZG25), A216 Cr. WCC, CF8(ZG1Cr18Ni9Ti), CF8M(ZG0Cr18Ni12Mo2Ti), A352LC3 A3

Description

The eccentric rotary plug control valve has a one-piece body design and connects by flanged(ASME Class150 ~ 300, PN10 ~64) or wafer type(ASME Class150 ~ 300).

An eccentric plug valve is a type of rotary control valve which has a shaped plug. The plug doesn’t touch with the valve seat until within a few angles of the close position. Due to the plug-shaped contacts or ”cams” into the seat, its surfaces will dynamically align to get to shut off. This is the valve we called eccentric plug valves.

This valve with a plug-shaped component that follows an eccentric part as it rotates.

The plug will not touch the seat until it turns within a few degrees of the cutoff position. Sometimes we call the plug a cam, when it is into the seat, the sealing surfaces dynamically align to achieve cutoff.

The most common application for eccentric rotary plug control valves is for the medium with slurries, grit, or solids. They have high performance of control accuracy and wide rangeability with all the inherent benefits of rotary control valves.

Basically, the eccentric rotary control valves will be complete with a pneumatic actuator, digital/smart positioner, and air filter regulator for precise flow control.

Main Technical Parameters

  • Size: DN25 to DN100
  • Pressure Rating: 150LB to 300LB, PN16 to pN64
  • Initial deviation: ±3%
  • Dead zone: 1%
  • Rated travel deviation:50°±3°
  • Inherently adjustable ratio: 100:1
  • Leakage level:
    Metal Seat: ANSI VI;
    Soft Seat: ANSI VI;
  • Pressure recovery coefficient FL:
    Full Bore: Flow to Open: 0.85; Flow to Close: 0.68;
    Reducing Bore: Flow to Open: 0.88; Flow to Close: 0.70

Name

Material

Body

A216 Gr. WCB(ZG25), A216 Cr. WCC,  CF8(ZG1Cr18Ni9Ti), CF8M(ZG0Cr18Ni12Mo2Ti), A352LC3   A352LC3

Trim

CF8(ZG1Cr18Ni9Ti), CF8M(ZG0Cr18Ni12Mo2Ti), CF8M+No.6

Seat

304、316、316+No.6、(316+PTFE)

Stem

316(0Cr18Ni12Mo2Ti), 17-4PH

Cage

9Cr18, 316+No.6

Packing

PTFE RPTFE Graphite

Characteristic Flow Curve of Plug Control Valves

characteristic flow curve of plug control valves
characteristic flow curve of plug control valves

DN (mm)

Cv

Air to Close Flow to Open

Air to Open Flow to Close

Air to Open-Flow to Close Air to Close-Flow to Open

Supply Air

0.14

0.18

0.21

0.25

0.28

0.32

25

14

8.4

5.6

2.8

7.03

10.1

10.1

10.1

7.03

10.1

10.1

10.1

7.03

10.1

10.1

10.1

– – – –

– – – –

– – – –

– – – –

– – – –

40

30

18

12

6

3.45

5.20

7.03

7.03

4.71

7.03

9.84

9.84

3.02

4.50

6.33

6.33

5.62

9.67

10.1

10.1

– – – –

– – – –

– – – –

– – – –

50

50

30

20

10

1.90

2.88

3.80

3.80

2.53

3.94

5.20

5.20

1.62

2.46

3.30

3.30

3.51

5.34

7.03

7.03

4.22

7.03

7.03

7.03

– – – –

– – – –

– – – –

80

135

81

54

1.40

2.25

3.23

1.97

2.95

4.50

1.27

1.90

2.81

2.67

4.08

6.12

4.22

6.54

7.03

– – –

– – –

– – –

100

230

138

92

0.70

1.12

1.62

0.98

1.55

2.18

0.63

0.98

1.40

1.40

2.10

3.02

2.25

3.45

4.92

3.10

4.71

6.82

3.94

6.05

7.03

4.22

7.03

7.03

Additional information

Size:

1" ~ 4", DN25 ~ DN100

ANSI Class:

150 ~ 600LB, PN16 ~ PN64

Body Materials:

A216 Gr. WCB(ZG25), A216 Cr. WCC, CF8(ZG1Cr18Ni9Ti), CF8M(ZG0Cr18Ni12Mo2Ti), A352LC3 A3

ASK FOR A QUOTE

One-time business is not our goal, we pursuit for long-term partner relationships.

We are not just providing simple quotes but experts in selection, calculation, and drawing. 

  • Air Separation
  • Amine Gas Treatment
  • Anti-surge
  • Cryogenics
  • Floating Storage & Regasification Unit
  • Liquefied Natural Gas (LNG)
  • LNG Liquefaction
  • LNG Regasification & Storage
  • Natural Gas Processing
  • Oxygen Service
  • SteamUrea
  • Oil & Gas (Upstream & Midstream)
  • Refining (Downstream)
  • Industrial Gases
  • Power generation
  • Pulp & Paper
  • Mining & Metals
  • Water & Wastewater
  • Iron & Steel
  • Chemical & Petrochemical
Joy Preview

ASK FOR QUOTE

Just leave your name, email, and simple message or requirements, We will contact you within 1 hour.

WhatsApp: +86 185 1656 9221

Skype ID: sowell85

Wechat ID: +86 189 5813 8289

Joy Preview

We have provided OEM services for 26+ international brands, including the top 500 valve & instrument companies. We believe that we will bring you more sustainable profits.

Grow Your Business is Our Top Priority. Contact Now You Will Get More Than Expect.

Price List For Control Valves

ARE YOU REALLY NOT INTEREST THE PRICE LIST?

Know your cost at any time during a business negotiation, and quickly sign orders without waiting.

Only need you to leave your email address.

*  THINKTANK takes your privacy very seriously. All information is only used for technical and commercial communication and will not be disclosed to third parties.