What Is a Bellows Type Steel Globe Valve?

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What Is a Bellows Type Steel Globe Valve?

05/02/2025

What Is a Bellows Type Steel Globe Valve?

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.
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.

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.

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.

Common Standards and Notable Manufacturers

Design Standards: API 602, ANSI B16.34, DIN, JIS.
Popular Brands: KSB (Germany), ETM (China).

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

What Is a Bellows Type Steel Globe Valve?

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