Cryogenic Ball Valve Manufacturer in India

Speciality Valve is a trusted Cryogenic Ball Valve Manufacturer in India, producing high-precision valves designed to perform safely and efficiently in extremely low-temperature environments. Our cryogenic ball valves ensure leak-tight performance, operator safety, and long-term reliability in applications involving liquefied gases such as LNG, liquid nitrogen, oxygen, hydrogen, and argon.

Function & Working

Cryogenic ball valves are used to isolate or control the flow of cryogenic fluids at temperatures as low as –196 °C. The ball, when rotated 90°, allows or restricts flow through its bore, providing full-bore passage when open and bubble-tight shut-off when closed. Each valve features an extended bonnet that keeps the stem seals above the frost line, preventing freezing and ensuring safe operation. Precision machining of the ball and seat ensures minimal torque and consistent sealing even under extreme thermal contraction.

Advantages

• Reliable performance at cryogenic temperatures

• Extended bonnet prevents frost accumulation and ensures operator safety

• Bubble-tight shut-off for liquefied and gaseous service

• Suitable for both manual and automated actuation

• Long service life with minimal maintenance

Types Offered

• Floating Cryogenic Ball Valve

• Trunnion-Mounted Cryogenic Ball Valve

• Top-Entry and Side-Entry Ball Valve

• Manual, Pneumatic, and Electric Actuated Types

Industries Served

• LNG and LPG Terminals

• Industrial Gas Plants

• Petrochemical and Refinery Facilities

• Aerospace and Cryogenic Testing Systems

• Medical Gas and Pharmaceutical Distribution

• Hydrogen and Oxygen Storage Networks

Technical Specifications

Design Standards: BS 6364, ISO 28921, API 6D, ASME B16.34, API 598
Size Range: DN15 – DN1200 (½″ – 48″)
Pressure Ratings: Class 150 – 2500 / PN10 – PN450
Temperature Range: –196 °C to +120 °C
End Connections: Flanged (RF/RTJ), Butt Weld (BW), Socket Weld (SW), Threaded (NPT/BSP)
Operation: Lever, Gear, Pneumatic, or Electric Actuated

Material of Construction

Testing and Certification

All cryogenic ball valves are tested and certified in accordance with international cryogenic standards:

• Cryogenic proof test at –196 °C in liquid nitrogen

• Helium leak test for micro-leakage detection

• Hydrostatic and seat leak testing as per API 598 / ISO 5208

• Fugitive emission testing (API 641 / ISO 15848-1)

• EN 10204 3.1 / 3.2 material traceability certificates