Shanghai Jianggong Valve Manufacturing Co., Ltd.

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Direct Mount Bellows Globe Valve Perfect for Normal Pressure Applications

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Shanghai Jianggong Valve Manufacturing Co., Ltd.
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Country/Region:china
Contact Person:MrDavid Chen
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Direct Mount Bellows Globe Valve Perfect for Normal Pressure Applications

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Place of Origin :China
MOQ :1set
Payment Terms :L/C,T/T,Western Union
Supply Ability :100pcs per month
Delivery Time :14 days
Packaging Details :Plywood box safety packing
Application :General
Medium Type :Water, steam and oil etc.
Mounting Type :Direct Mount
Standard Or Non-Standard :Standard
Flow way :Two way
Actuation :Manual, Electric, Pneumatic,Automatic
Sealing Performance :Sealing
Working Temperature :Normal Temperature And High Temperature
Pressure Application :Normal Pressure
Quality Warranty :18 Months
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View Product Description

Highlight: Bellows Globe Valve


Product introduction:


Bellows-sealed gate valves, also known as bellows-packaged gate valves, form a metallic barrier between the fluid medium and the atmosphere through automated roll welding, ensuring zero stem leakage. The valve stem features a dual-sealing structure combining bellows and packing, guaranteeing leak-proof sealing, particularly suitable for pipelines carrying flammable, explosive, toxic, or valuable media. The bellows are crafted from stainless steel or Inconel, with a scientifically designed structure that resists fatigue and ensures extended service life.


Product technical parameters:


Nominal Pressure PN(MPa)

1.0 - 4.0

Nominal Diameter DN(mm)

15~600

Test pressure (MPa)

Strength (water)

1.5 times of pressure nominal

Sealing (water)

1.1 times of pressure nominal

Sealing (Air)

0.6 times of pressure nominal

Sealing for bellows (water)

1.5 times of pressure nominal

Raw material

WCB, CF8, CF8M

Medium suitable:

Water, steam, oil mediums

Working temperature

-196℃~600℃

Connection type

Flange

Operational method

Hand-wheel, bevel gear, pneumatic and electric actuators


Product features:


  1. For the bellows globe valve, its key component is the metal bellows. The lower end is automatically roll-welded to the valve stem assembly, and the upper end is automatically roll-welded to the connecting plate, forming a metal barrier between the fluid medium and the atmosphere to ensure zero stem leakage.
  2. The valve disc adopts a conical design, and the sealing surface is streamlined with the medium, resulting in better sealing performance and longer service life.
  3. The dual-sealing design (bellows + packing) ensures that if the bellows fail, the valve stem packing will also prevent leakage, complying with international sealing standards.
  4. The valve cover is equipped with a grease nipple, allowing direct lubrication of the valve stem, nut, and bushing. Traditional globe valves can only lubricate threads.
  5. The ergonomic handwheel design features a longer service life, easy and convenient operation, and greater safety and reliability.
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