Jacketed Insulation Globe Valve

A jacket insulated globe valve is a type of valve that adds a fully enclosed metal jacket on the outer layer of a regular globe valve body. By circulating steam, heat transfer oil, or cooling medium inside the jacket, the temperature inside the valve is maintained (-50 ℃ to 600 ℃) to prevent crystallization and blockage of high viscosity or easily solidified media (such as asphalt and heavy oil). It adopts a corrugated pipe seal and a secondary seal design with packing to achieve zero leakage, suitable for industrial scenarios such as petroleum and chemical industries that require high temperature and high pressure (≤ 4.0MPa, ≤ 425 ℃) and highly corrosive media.

  • Energy saving and safety protection
  • Convenient maintenance and multifunctional adaptation
  • Resistant to extreme working conditions and long lifespan
  • Efficient fluid channels and low flow resistance
  • Double sealing and high reliability
  • Design of jacket insulation structure
Energy saving and safety protection
  • Energy saving and safety protection
    01
    Jacket insulation reduces heat loss from the medium, lowers external heating energy consumption, and increases energy efficiency by 20% -30%;
  • 02
    The fire and explosion prevention design complies with industrial safety standards to prevent the risk of leakage of flammable and explosive media.
Convenient maintenance and multifunctional adaptation
  • Convenient maintenance and multifunctional adaptation
    01
    The detachable valve seat design facilitates the cleaning of coking or particulate matter, and the replacement of seals does not require overall disassembly;
  • 02
    Supports manual, electric, and pneumatic drives, and is compatible with various interfaces such as flanges, threads, and welding to adapt to petroleum, chemical, pharmaceutical, and other scenarios.
Resistant to extreme working conditions and long lifespan
  • Resistant to extreme working conditions and long lifespan
    01
    The valve body is made of forged steel, stainless steel or special alloy, with a pressure resistance of ≤ 4.0MPa, suitable for high temperature steam (≤ 425 ℃) and low temperature freezing medium;
  • 02
    The isolation design between the jacket layer and the valve body reduces the impact of thermal stress on the valve body and extends its service life to several decades.
Efficient fluid channels and low flow resistance
  • Efficient fluid channels and low flow resistance
    01
    Direct flow channel design, with the same diameter as the pipe, allowing the medium to flow in a straight line, reducing resistance by more than 30% and minimizing energy loss;
  • 02
    Short stroke structure of valve disc (with a nominal diameter of 25% -30%), fast opening and closing speed, reducing operating time.
Double sealing and high reliability
  • Double sealing and high reliability
    01
    Double sealing of corrugated tube and packing: The corrugated tube isolates the medium from the valve stem, eliminating the problem of aging and leakage of packing; Fill as a secondary sealing guarantee to achieve zero leakage;
  • 02
    The sealing surface is welded with cobalt based hard alloy (such as Stellite) or PTFE soft seal, which is resistant to high temperature and corrosion, and suitable for strong acid and alkali media.
Design of jacket insulation structure
  • Design of jacket insulation structure
    01
    The outer layer of the valve body is welded with a fully enclosed metal jacket, which supports the introduction of insulation media such as steam and thermal oil, effectively maintaining the temperature inside the valve (-50 ℃ to 600 ℃) and preventing crystallization and blockage of high viscosity or easily solidified media (such as asphalt and heavy oil);
  • 02
    The jacket and valve body adopt full welding technology, which has stronger pressure resistance and avoids the risk of leakage of traditional flange jackets.
Main Component Materials

Valve body、valve cover

valve disc

shim

304 CF8

304+hard alloy

stainless steel gasket

316 316L

316, 316L+hard alloy

stainless steel gasket

Performance Specifications & Dimensions
  • Nominal Pressure PN
    1.6/2.5/4.0/6.4
  • Shell F
    Px1.5
  • Sealing Pressure
    Px1.1
  • Medium
    Nitric Acid
  • Temperature (℃)
    ≤425℃

Nominal

diameter

DN (mm)

PN1.6MPa

L

D

D1

D2

b-f

Z-Φd

H

15

130

95

65

45

16-2

4-14

170

20

150

105

75

55

16-2

4-14

190

25

160

115

85

65

16-2

4-14

205

32

180

135

100

78

18-2

4-18

270

40

200

145

110

85

18-3

4-18

310

50

230

160

125

100

18-3

4-18

358

65

290

180

145

120

18-3

4-18

373

80

310

195

160

135

20-3

8-18

435

100

350

215

180

155

20-3

8-18

500

125

400

245

210

185

22-3

8-18

614

150

480

280

240

210

24-3

8-23

674

200

600

335

295

265

26-3

12-23

818

250

730

405

355

320

30-3

12-25

969

PN2.5MPa

15

130

95

65

45

16-2

4-14

233

20

150

105

75

55

16-2

4-14

275

25

160

115

85

65

16-2

4-14

285

32

180

135

100

78

18-2

4-18

302

40

200

145

110

85

18-3

4-18

355

50

230

160

125

100

20-3

4-18

362

65

290

180

145

120

22-3

8-18

400

80

310

195

160

135

22-3

8-18

430

100

350

230

190

160

24-3

8-23

465

125

400

270

220

188

28-3

8-25

550

150

480

300

250

218

30-3

8-25

700

200

600

360

310

278

34-3

12-25

780

250

730

425

370

335

36-3

12-30

900

Note: The above data is for reference only. For details, please consult the company's sales department.

Valve Application
  • Oil & Gas Transportation

    Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.

  • Chemical Raw Material Control

    The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.

  • High Temperature SteamPipeline in Power System

    High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.

  • Other Industries

    Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.

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