DIN Standard Bellows Sealed Angle Globe Valve

Zhongguan supplies the DIN Standard Bellows Sealed Angle Globe Valve for industrial pipeline procurement, combining a 90° angle-body structure with metallic bellows stem sealing for steam, thermal oil, hot water, process gases, and ammonia systems. The valve is available in body materials including cast iron, ductile iron, cast steel, and stainless steel, with bellows options in SS304, SS316, SS316L, SS310S, and Hastelloy C. The specified size range is DN15–DN400, with pressure ratings of PN16–PN40 and a listed maximum temperature of 600°C.

Angle-Pattern Design for Industrial Piping

The angle-pattern body redirects flow through 90°, integrating a change of direction into the valve structure. This arrangement can eliminate a separate elbow in compatible piping layouts, reduce the number of connections, and simplify installation in confined spaces.

• Compact pipeline routing: Integrates flow-direction changes at the valve location.
• Flow regulation: The globe-valve disc and seat control the passage of process media.
• Shut-off performance: The seating structure supports isolation in industrial fluid systems.
• Maintenance access: The bonnet and stem assembly provides access to internal operating components.

Metallic Bellows Sealing Structure

The metallic bellows surrounds the moving stem and expands or contracts during valve operation. It creates a barrier between the process medium and the external environment, reducing dependence on conventional packing as the primary stem seal.

Dual Sealing with Bellows and Packing

The sealing arrangement combines a metallic bellows with secondary PTFE or graphite packing.

• Primary sealing: The bellows limits process-medium leakage along the valve stem.
• Secondary sealing: Packing provides an additional barrier if the bellows loses integrity.
• Operating stability: Appropriate bellows materials and sound mechanical design support service in systems exposed to elevated temperatures and repeated valve operation.

This configuration is particularly relevant to steam, thermal oil, and process gas applications where external leakage control is important.

Materials and Technical Specifications

Material Selection for Different Operating Conditions

• GG25 and GGG40: Cast iron and ductile iron options for industrial water and utility systems within their applicable operating ratings.
• 1.0619+N (GS-C25): Cast steel for industrial pressure-containing applications.
• 1.4308 (CF8) and 1.4408 (CF8M): Stainless steel options for services requiring corrosion resistance.
• SS316L and SS310S bellows: Alternative stainless steel grades for different chemical and thermal environments.
• Hastelloy C bellows: An alloy option for demanding corrosive-media applications.
• Stellite hardfacing: Optional seat and disc surface treatment for applications requiring enhanced resistance to wear.

Media and Industrial Applications

The DIN Standard Bellows Sealed Angle Globe Valve is suited to industrial systems requiring directional flow changes, controlled fluid passage, and reduced stem leakage.

• Steam systems: Industrial steam distribution and thermal processing — see also the DIN Standard Bellows Sealed Globe Valve.
• Thermal oil circuits: Heat-transfer systems operating at elevated temperatures — the DIN Standard Globe Valve is a related straight-pattern option.
• Water circulation: Hot and cold water pipelines in industrial facilities.
• Process gas pipelines: Gas-handling systems where stem sealing is a key design consideration.
• Ammonia plants: Process systems requiring suitable material compatibility.
• Heating installations: Industrial heat-transfer networks using steam or thermal fluids.

The angle-body configuration combines flow-direction changes and valve operation in one assembly, making it useful in compact piping layouts. For related pipeline components, please refer to the DIN Standard Check Valve, the DIN Standard Gate Valve, and the DIN Standard Y Type Strainer.

Key Specifications for Valve Selection

The DIN Standard Bellows Sealed Angle Globe Valve can be evaluated using the following operating and installation parameters:

1. Medium: Steam, thermal oil, water, ammonia, or process gas.
2. Operating conditions: Design pressure, normal temperature, and maximum operating temperature.
3. Pipeline dimensions: DN size, connection type, and installation space.
4. Material requirements: Body, bonnet, bellows, seat, disc, and packing materials.
5. Valve function: Flow regulation, isolation, or a combination of both.
6. Applicable standard: Required DIN standard, connection dimensions, and inspection requirements.

Zhongguan Manufacturing and Technical Support

Zhejiang Zhongguan Valve Manufacture Co., Ltd. has focused on valve production and supply for more than 19 years, with production bases in Tianjin and Wenzhou. The Tianjin base was established in 2016, followed by the establishment of the Zhejiang company in Oubei, Yongjia, Wenzhou, in 2019.

Its product range includes butterfly valves, ball valves, gate valves, check valves, foot valves, strainers, and control valves. Production equipment includes valve pressure-testing machines, valve-seat installation equipment, shaft-sleeve installation equipment, and valve-marking equipment.

Technical support covers valve selection according to operating temperature and medium type. Production inspections include pressure testing, and the company provides a one-year warranty with free replacement for confirmed quality-related issues under its service terms. You can also review our certificates and cooperative cases.

For industrial steam, thermal oil, water, and gas systems, the DIN Standard Angle Type Bellows Sealed Globe Valve combines an angle-pattern body, metallic bellows stem sealing, and multiple material options for industrial pipeline applications. Explore the full DIN Standard Industrial Valve range for related pipeline components.

FAQ

Can the valve be installed in any orientation?

Installation should follow the flow direction indicated on the valve body. The angle body has defined inlet and outlet ports, so the piping layout must match the intended flow path.

What are the early signs of bellows wear or failure?

External leakage around the stem area, unstable downstream pressure, or a noticeable change in operating torque may indicate bellows wear. The secondary packing can provide temporary sealing, but the bellows should be inspected and replaced if damage is confirmed.

Can the valve be fitted with an actuator?

The valve can be supplied with a mounting interface for compatible manual, pneumatic, or electric actuators. The actuator selection depends on torque requirements, stroke, and the operating conditions of the specific valve size.

What should be checked during flange installation?

Check flange alignment, gasket type, and bolt tightening sequence. Uneven bolt load can distort the body or cause leakage, especially on larger DN sizes and higher pressure ratings.

Are replacement bellows and seat components available separately?

Replacement bellows, seat, disc, and packing components can be supplied for compatible valve models. The correct part depends on the valve size, pressure rating, body material, and bellows material originally specified. Contact us with the original specification for a replacement quotation.