The Megastar Star Ball Valve is an important part of Starline's High Pressure range of Ball Valves, engineered to meet the exacting demands of the Chemical, Petrochemical, and Gas Industries, where unwavering reliability stands as the cornerstone of operational success. Engineers carefully design the Megastar Ball Valve with a strong 3-piece bolted body to withstand tough conditions. The valve has been carefully designed for durability and reliability in challenging environments. The system offers flexible installation with options for screwed, flanged, or welded connections.

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Key features and benefits of Starline Megastar Valves.

Key Features

The Megastar Star Ball Valve is engineered with a durable 3-piece bolted body design, ensuring exceptional structural integrity and longevity, even in the most demanding industrial environments. This design enhances reliability and minimises maintenance requirements.

Key Features

With options for screwed, flanged, and welded connections (Full Bore only), the Megastar Ball Valve offers versatility in installation and integration. This flexibility allows for seamless adaptation to various piping systems and project requirements, enhancing ease of use and compatibility.

Key Features

Capable of withstanding pressures up to Class 2500LB (6000PSI) and operating temperatures ranging from -101 to 250 DegC, the Megastar Ball Valve excels in high-pressure and high-temperature applications. Its robust construction and superior materials make it suitable for a wide range of demanding industrial settings, ensuring reliable performance even in extreme conditions.


Size:	DN08 - DN50 (1/4" - 2")
Body Material:	ASTM A105 - LF2 - 316 - 316L - and Special Materials
Design Standard:	ASME B16.34 - ASME B31.1 - BS5351 - P.E.D. 97/23/EC - ATEX 94/9 CE
Temperature:	-101° C up to +250° C
Applications:	Petroleum, Chemicals, Petrochemicals, Gas Application and Allied Industries
Test Certificate:	UNI EN 10204 Type 3.1B
Valve Design:	Anti Blow Out Proof Stem
Marking:	MSS SP25
Flow Range (Cv & Kv):	CV: 8 to 180, & Kv: 6.8 to 153.8

Starline Ultra Star Ball Valves are distinguished by their advanced features, including an anti-blowout proof stem design, double seal soft insert seats, and automatic relieving in case of over-pressuring. These features ensure enhanced safety, reliability, and performance in fluid control applications.

The anti-blowout proof stem design of Starline Ultra Star Ball Valves prevents stem ejection under pressure, minimising the risk of accidents or damage during operation. This feature ensures that the valve remains securely in place, even under high-pressure conditions.

The double seal soft insert seats provide superior sealing performance and leakage prevention, enhancing the valve's reliability and longevity. This design ensures tight sealing, even in demanding industrial environments, thereby reducing the risk of fluid leaks and minimizing maintenance requirements.

The automatic relieving feature in Starline Ball Valves activates in case of over-pressuring within the valve body, automatically relieving excess pressure to prevent damage or failure. This functionality ensures system integrity and uninterrupted operation, safeguarding equipment and personnel.

The three-piece bolted construction facilitates easy maintenance and servicing of Starline Ultra Star Ball Valves, allowing for quick disassembly and reassembly. This feature streamlines maintenance procedures, reducing downtime and enhancing operational efficiency.

Starline Ball Valves are designed to provide high-integrity shut-off at both low and high pressures, ensuring reliable performance across a wide range of operating conditions. This capability enhances process control and system safety in various industrial applications.

The double block and bleed feature in Starline Ball Valves allows for isolation and verification of fluid flow, providing added safety and security in critical processes. This functionality enables operators to maintain control over fluid flow and monitor system integrity effectively.

The floating seats spring energised design ensures consistent sealing and enhanced reliability in Starline Ball Valves. This feature enables the seats to adjust to variations in pressure and temperature, maintaining tight sealing and preventing leakage over time.

The ISO 5211 top cover flange provides a standardised interface for easy automation of Starline Ball Valves, facilitating seamless integration with actuation systems. This feature simplifies valve operation and control, enhancing overall system efficiency and performance.

Yes, Starline Ball Valves are fire test approved, ensuring compliance with industry standards for fire safety. This certification underscores the valves' ability to withstand high-temperature environments and maintain operational integrity during fire emergencies.

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The Mega Star Ball Valve offers three end connection options - screwed, butt weld, and flanged - each tailored to specific installation requirements and preferences. Learn more about these connections and which type may be the most beneficial for your applications.

Screwed Connection:

Screwed connections offer simplicity and ease of installation without requiring welding or additional sealing materials. This makes them suitable for applications where quick installation and flexibility are desired.

Butt Weld Connection:

Butt weld connections provide a robust and leak-proof joint, minimising the risk of leakage and ensuring long-term integrity in high-pressure or high-temperature applications. They offer superior strength and reliability compared to threaded connections, making them suitable for critical process environments.

Flanged Connection:

Flanged connections offer versatility and compatibility with a wide range of piping systems and equipment. They provide a secure and robust joint that can withstand high pressures and temperature fluctuations. Flanged connections also facilitate easy maintenance and disassembly, making them suitable for applications where frequent maintenance or accessibility is required.