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Products

Cryogenic Ball Valves

Qublock Technology’s products in cryogenic services are highly rated by customers due to its engineering expertise in relation to product reliability and performance. Qublock’s aftermarket services are also admired by customers because of our product knowledge and responsiveness.

Product Range

Rating ASME Class 150#, 300#, 600#
Size 1/2"-20", 15A-500A
Type Floating, Trunnion Design
Temperature

-196℃ with Liquefied Nitrogen

 

-104 ~ 0℃ Ethanol with Liquefied

 

-70 ~ 0℃ Ethanol with CO2 Dry Ice

Materials Stainless Steel A351, CF8M/CF3M
Design Code API1608, ASMEB16.34, ASMEB16.5, ASME 16.10, BS6364
Operation Manual Lever or Gear, Pneumatic, Electric or Hydraulic

Material Specification

All materials supplied for the valve components are suitable for the severe low temperature installation. Impact test is carried out on pressure retaining parts of cast material according to ASTM Testing Procedures.

Fire Safe Design

The fire safety design and metal seat design comply with the API 607 6th edition and ISO 10497. Qublock cryogenic ball and butterfly valves provide proven positive sealing performance after being fired.

Customized Shaft Extension

The shaft extension can be customized to meet the application needs. The optimum shaft length and material are selected by considering the operation torque, fluid temperature and application conditions.

Cryogenic BS 6364 Design & Test

Qublock cryogenic valves are designed to provide reliable performance under extremely server application. The valves are tested in accordance with BS 6364 standard and proven to possess rugged valve performance during the test. Other cryogenic designs and test standards are also applicable on request.

Suitable for Extremely Low Temperature Use

Qublock’s cryogenic butterfly valve is designed to provide throttling or on-off control of liquids and gases at cryogenic temperature as low as -196℃.

Flow Indication Stem

A stem top with “grooves” indicates the flow direction. It helps users to properly operate and maintain the valves at their sites.