What Is a Bellows Type Steel Globe Valve?

1. Definition
   A Bellows Type Steel Globe Valve is a globe valve designed with a bellows seal structure instead of a conventional packing seal. This design ensures complete leak prevention, especially in systems operating under high pressure, high temperature, or containing hazardous liquids and steam.

   

2. Structure of a Bellows Type Globe Valve

• Body: Made from carbon steel, alloy steel, or stainless steel, capable of withstanding high temperature and pressure.

• Bonnet: Houses the bellows seal mechanism.

• Bellows Seal: Made from stainless steel (SS304, SS316L), capable of expanding and contracting to ensure absolute sealing.

• Stem: Connects the valve disc and controls the opening/closing of the flow.

• Disc: Regulates the flow of liquid or steam in the system.

• Handwheel: Used to manually open or close the valve.

3. Advantages of Bellows Type Globe Valves

• Absolute Leak Prevention: The bellows seal design completely prevents medium leakage to the outside.

• Long Service Life: The bellows are designed to withstand thousands of open/close cycles, extending valve life.

• High Temperature and Pressure Resistance: Suitable for steam, hot oil, compressed air, and chemical systems.

• Reduced Maintenance Costs: No need for frequent replacement of packing seals like conventional globe valves.

• Compliance with Safety Standards: Especially important in industries requiring high sealing performance, such as chemicals, pharmaceuticals, and oil & gas.

4. Applications of Bellows Type Globe Valves

• Steam Systems: Power plants, industrial boilers.

• Oil & Gas and Chemical Industries: Piping systems carrying hazardous and toxic media.

• Pharmaceutical and Food Industries: Saturated steam systems, purified water systems.

• Central Heating and HVAC Systems: Controlling the flow of hot water or thermal oil.

5. Common Standards and Notable Manufacturers

• Design Standards: API 602, ANSI B16.34, DIN, JIS.

• Popular Brands: KSB (Germany), ETM (China).

6. Product Availability: Available in stock. Please contact us for a quotation.

Technical Specifications of ETM Bellows Seal Steel Globe Valve Flanged DIN PN16

• MODEL: P.061

• Medium: Steam, Hot Oil

• Body: GS-C25 Steel

• Disc: A105 Cr13

• Bellows: SS316L

• Maximum Working Temperature: 400°C

• Maximum Working Pressure: 16 bar (PN16)

• Flange Connection: DIN PN16

Bellows Type Globe Valves are an optimal solution for systems requiring high sealing performance, reducing leakage, and improving operational efficiency in harsh industrial environments.

Contact Information:

PHUC MINH ENGINEERING CO., LTD.
Address: 92/38, Street No. 12, Quater 18, Binh Hung Hoa Ward, Binh Tan District, Ho Chi Minh City, Vietnam
CellPhone/Zalo: +84907450506 / +84902720814 / +84902800728

Tel: +84 28 3535 2125
Fax: +84 28 3535 0254
Email: info@pm-e.vn
Website: pm-e.vn