2-Piece Flange Ball Valve DN50 150LB 304 Body RF End
2-Piece Flange Ball Valve DN50 150LB 304 Body RF End
The 2-Piece Flange Ball Valve DN50 150LB with 304 stainless steel body and RF end connection delivers exceptional performance and reliability for demanding industrial applications. Engineered to provide precise flow control and long-term durability, this valve excels in chemical processing, water treatment, food & beverage, and general industrial piping systems where corrosion resistance and operational integrity are paramount.
Key Features & Benefits
Versatile 2-Piece Design
The split body construction offers significant advantages for industrial applications. This design allows for easier maintenance access, reducing downtime during service intervals. The body can be disassembled without removing the entire valve from the pipeline, saving valuable time and labor costs during maintenance operations.
Additionally, the 2-piece configuration results in reduced overall weight compared to single-piece alternatives, making installation more manageable while maintaining structural integrity. This design also facilitates more efficient cleaning and inspection of internal components.
Premium 304 Stainless Steel Construction
The AISI 304 stainless steel body provides exceptional corrosion resistance against a wide range of chemicals, moisture, and atmospheric conditions. This premium material ensures long-term reliability even in challenging environments where standard carbon steel valves would deteriorate rapidly.
The 304 stainless steel construction also offers excellent temperature resistance, maintaining structural integrity across a broad operating range. This material choice delivers superior hygiene standards, making it ideal for applications in food processing, pharmaceutical, and other industries requiring sanitary conditions.
Reliable RF Flange Connection
The Raised Face (RF) flange end connection ensures superior sealing performance under pressure. This industry-standard connection type creates a more concentrated gasket pressure, resulting in enhanced leak prevention even in high-pressure or fluctuating conditions.
The RF design is compatible with common ANSI/ASME B16.5 flange standards, making integration into existing piping systems straightforward. This connection type also allows for easier alignment during installation and provides excellent resistance to thermal cycling effects that can compromise seal integrity over time.
Ready to enhance your fluid control system?
Our engineering team is available to help you select the right valve configuration for your specific application requirements.
Technical Specifications
| Specification | Value |
| Product Name/Model | 2-Piece Flange Ball Valve / Q41F-150LB-304 |
| Size | DN50 (NPS 2″) |
| Pressure Rating | 150LB (PN20) |
| Body Material | AISI 304 Stainless Steel |
| Ball Material | AISI 304 Stainless Steel |
| Seat Material | PTFE (Teflon) |
| Stem Material | AISI 304 Stainless Steel |
| Seal Material | PTFE with O-ring backup |
| End Connection | Raised Face (RF) Flange |
| Operation Type | Lever Handle (Optional: Gear Operator) |
| Temperature Range | -29°C to +180°C (-20°F to +356°F) |
| Port Type | Full Port |
| Face-to-Face Dimension | ASME B16.10 |
| Flange Standard | ASME B16.5 |
| Testing Standard | API 598, API 6D |
Need detailed technical documentation?
Download our comprehensive datasheet for complete specifications, dimensional drawings, and material certifications.
Download Technical Datasheet
Design & Construction
Robust Split Body Construction
The 2-piece split body design of this flange ball valve represents a significant engineering advancement over traditional one-piece configurations. The body is precision-cast from AISI 304 stainless steel and machined to exacting tolerances, ensuring perfect alignment of all components. This construction method allows for easier maintenance access while maintaining structural integrity under pressure.
Full Port Design
This valve features a full port (full bore) design that eliminates flow restrictions and pressure drops. The ball opening matches the pipe’s inner diameter, allowing unrestricted flow and making the valve ideal for applications where minimizing pressure loss is critical. This design also facilitates easier pigging operations and prevents debris accumulation.
Blow-Out Proof Stem
Safety is enhanced through the incorporation of a blow-out proof stem design. The stem is engineered with a shoulder that prevents it from being ejected under pressure, even if the packing fails. This critical safety feature protects personnel and equipment in high-pressure environments, providing peace of mind during operation.
Low Torque Operation
The valve incorporates precision-engineered PTFE seats that provide excellent sealing while requiring minimal operating torque. This design feature reduces operator fatigue during manual operation and extends the service life of automated actuators. The low friction coefficient between the polished ball and PTFE seats ensures smooth operation even after extended periods of inactivity.
ISO 5211 Direct Mounting Pad
For applications requiring automated operation, this valve comes equipped with an ISO 5211 standardized mounting pad. This universal interface allows for direct mounting of pneumatic, electric, or hydraulic actuators without additional brackets or adapters. The standardized dimensions ensure compatibility with a wide range of automation equipment from different manufacturers.
Applications
Chemical Processing
The 304 stainless steel construction provides excellent resistance to a wide range of chemicals, making this valve ideal for chemical manufacturing, processing, and transfer applications. It performs reliably in environments with acids, alkalis, and corrosive chemicals where material integrity is critical.
Water Treatment
In water treatment facilities, these valves provide reliable control for process water, chemical injection systems, and filtration processes. The corrosion-resistant properties ensure long service life even when exposed to treatment chemicals, while the full port design minimizes pressure drop in high-flow applications.
Food & Beverage
The hygienic properties of 304 stainless steel make this valve suitable for food and beverage processing applications. It meets industry standards for sanitary equipment and can handle CIP (Clean-In-Place) procedures. The smooth internal surfaces prevent product buildup and facilitate thorough cleaning.
Compatible Media
- Water and wastewater
- Natural gas and compressed air
- Petroleum products and lubricating oils
- Mild acids and alkalis
- Food-grade liquids and slurries
- Steam (with appropriate trim selection)
- Chemical solutions and solvents
- Thermal transfer fluids
Why Choose This Valve
Advantages
- Superior corrosion resistance from 304 stainless steel construction
- Easy maintenance access through 2-piece split body design
- Minimal pressure drop with full port configuration
- Enhanced safety with blow-out proof stem
- Versatile mounting options with ISO 5211 pad
- Reliable sealing with PTFE seats and precision machining
- Compliance with international standards (ASME, API)
- Extended service life in demanding applications
The 2-Piece Flange Ball Valve DN50 150LB with 304 stainless steel body and RF end represents an optimal balance of performance, durability, and value for industrial fluid control applications. Engineered to exacting standards and manufactured with premium materials, this valve delivers reliable operation even in challenging environments.
With its compliance to international standards including ASME B16.5, ASME B16.10, API 598, and API 6D, this valve ensures seamless integration into your existing systems while meeting regulatory requirements. The combination of corrosion resistance, ease of maintenance, and operational reliability makes this valve an excellent investment for long-term performance.
Ready to order or need technical assistance?
Our valve specialists are available to help you select the right configuration for your specific application requirements.
Contact Our Sales TeamEmail us directly at sales@stvvalves.com for prompt assistance
