Din Bellow Sealed Globe Valve
DIN bellow sealed globe valves are designed to provide reliable shut-off and throttling while completely eliminating stem leakage. The bellows sealing system isolates the valve stem from the process medium, making these valves ideal for high-temperature, high-pressure, and hazardous service applications.
Overview
DIN bellow sealed globe valves use a metal bellows as the primary sealing element, welded to both the valve stem and bonnet. This design prevents leakage through the stem packing and ensures safe operation in applications where zero emission is critical.
Design Features
- Bolted bonnet or pressure seal bonnet design
- Metal bellows seal for zero stem leakage
- Optional parabolic disc or plug disc for improved flow control
- Optional by-pass design for pressure balancing
- Available with cast or fully forged body construction
Materials
- Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel, Special Alloys
- Bellows and internal components designed for high temperature and pressure resistance
Operation Methods
- Hand wheel
- Impact hand-wheel
- Chain-wheel
- Bevel gear
- Pneumatic actuator
- Electric actuator
Applications
- Steam and condensate systems
- Chemical and petrochemical plants
- Thermal oil and heat transfer systems
- Power generation facilities
- Hazardous or toxic fluid services
Key Advantages
- Zero leakage at the valve stem
- High operational safety for hazardous media
- Long service life under severe operating conditions
- Reliable throttling and shut-off performance
- Compliance with DIN standards