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DIN3356 Cast Iron Globe Valve PN16 Flanged Ends - Reliable China Suppliers & Factory for Water, Steam, Oil Control
Product Details
As a force-seated valve, the globe valve achieves tight sealing by applying stem force to press the disc firmly against the valve seat, effectively preventing medium leakage. When the fluid enters from below the disc, the operating torque must overcome both the friction between the stem and packing as well as the upward pressure exerted by the medium. For this reason, the valve stem is designed with sufficient strength and diameter to ensure safe operation and prevent bending under load.
The sealing element of the globe valve typically adopts a plug-type disc, with either a flat or conical sealing surface. During operation, the disc moves linearly along the centerline of the valve seat, enabling accurate flow control and stable performance across a wide range of pressures and temperatures.
Key Features
- 🔩 Wide Material Selection: Available Cast iron, ductile iron, and stainless steel to suit different operating conditions.
- 🎛️ Precise Flow Regulation: Accurate throttling and smooth flow control.
- 📐 Multiple Design Options: Offered in straight pattern, angle pattern, and Y-pattern designs.
- 🛡️ Reliable Sealing Performance
Specification
| NO | PART NAME | MATERIAL |
|---|---|---|
| 1 | BODY | GRAY CAST IRON |
| 2 | BODY SEAT RING | BRASS |
| 3 | DISC SEAT RING | BRASS |
| 4 | DISC | DUCTILE IRON |
| 5 | DISC NUT | BRASS |
| 6 | STEM | STAINLESS STEEL |
| 7 | BONNET BOLT | CARBON STEEL |
| 8 | NUT | CARBON STEEL |
| 9 | PACKING | GRAPHITE |
| 10 | GL AND | DUCTILE IRON |
| 11 | WHEEL | DUCTILE IRON |
| 12 | WASHERS | CARBON STEEL |
| 13 | WHEEL BOLT | CARBON STEEL |
Frequently Asked Questions
What is a globe valve and how does it work?
A globe valve is a type of linear motion valve used to start, stop, and regulate fluid flow. It works by pressing a plug-type disc against a valve seat using stem force, creating a tight seal that prevents medium leakage. The disc moves linearly along the valve seat centerline for precise flow control.
What materials are available for globe valves?
Globe valves are available in a wide range of materials including gray cast iron, ductile iron, and stainless steel for the body, with brass used for seat rings and disc nuts, graphite for packing, and stainless steel for the stem — ensuring suitability for various operating conditions.
What design patterns are available for globe valves?
Globe valves are offered in three main design patterns: straight pattern, angle pattern, and Y-pattern. Each design is suited to different installation requirements and flow characteristics, allowing for flexible application across a variety of piping systems.
Can globe valves handle high-pressure and high-temperature applications?
Yes. Globe valves are designed to deliver stable performance across a wide range of pressures and temperatures. The use of stainless steel stems, graphite packing, and high-quality seating materials ensures durability and reliability even under demanding operating conditions.
How does the sealing mechanism of a globe valve prevent leakage?
The globe valve uses a force-seated mechanism where stem force presses the disc firmly against the valve seat. The disc adopts a plug-type design with either a flat or conical sealing surface. This combination, along with graphite packing around the stem, provides effective multi-point sealing to prevent any medium leakage.
Why is the valve stem designed with extra strength and diameter?
When fluid enters from below the disc, the stem must overcome both packing friction and upward medium pressure simultaneously. To ensure safe, reliable operation and prevent bending or failure under load, the stem is engineered with sufficient strength and a larger diameter to handle these combined forces effectively.
Product Packaging
01020304