800LB Low Temperature / Cryogenic Forged Steel Ball Valve (GADQ11/61F)

800LB Low Temperature / Cryogenic Forged Steel Ball Valve (GADQ11/61F)

1. Pressure rating: 150LB、300LB、600LB、900LB.
2. Nominal diameter: 15-1200 mm (1 / 2-36 ").
3. Connection type: flange type, welding type, thread etc.
4. Valve material: LCB, LC3, CF8,CF8M,CF3,CF3M.
5. Applicable media: liquefied natural gas, ethylene, propylene, etc.
6. Driving mode: manual, bevel gear drive, electric.

Product Details

Our concentrate on is always to consolidate and enhance the excellent and service of present solutions, in the meantime regularly develop new products to meet distinctive customers' demands for motorized ball valve, geared butterfly valve, adjusting type butterfly valve. We strive to create benefits for the society, with the goal of growing together with society, promoting national economic development, and revitalizing national scientific and technological progress. From the beginning of product research and development to the transformation of the product into the application, the core team has made great efforts step by step. It is our constant pursuit to improve the core competitiveness of enterprises and build industry advantages.

【Product Introduction】

The Cryogenic Ball valve suitable for medium temperature of - 40 ℃ ~ - 196 ℃。This ball valve adopts strict manufacturing process and special equipment to carry out strict quality control on the processing of parts. After special low-temperature treatment, the rough machined parts are placed in the cooling medium for several hours (2-6 hours) to release the stress, ensure the low-temperature performance of the material, and ensure the finishing size, so as to prevent the leakage caused by the deformation caused by the temperature change when the valve is in low-temperature condition.


Valve Features

Type : Trunnion Ball Valve

Connecting : Flanged end , RF

A182 F316 Forged steel

Full bore, 3piece body construct

Extended Stem design

Drive : Pneumatic actuator

Suitable Temperature : -29°C ~ -65°C

Suitable Presure: 2.0Mpa/150LB

For tight shut off

Standard : API6D, API608

Packing: Plywooden case

Certificate : EN 3.1 certificate


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Cryogenic Treatment Way

The cryogenic treatment of cryogenic ball valves shall be applied to the main components of any cryogenic valves at -101 ° C and below, or as required by the technical agreement.And improve the reliability of the valve under low temperature conditions;

1、Before the roughing is completed, "cryogenic treatment" is carried out in a low temperature liquid nitrogen tank that is 100% immersed in -196 °C. 

2、Immerse the parts in a liquid nitrogen tank for adequate cooling. 

3、When the part temperature reaches -196 ° C, keep the temperature for 1-2 hours (or according to the requirements of the corresponding technical agreement), then remove the box and naturally heat to room temperature.

4、The purpose of "cryogenic treatment" is to eliminate the martensite transformation of the Cryogenic Ball Valve material and the sufficient shrinkage deformation of the material at ultra-low temperatures.

5、Thereby eliminating the potential hazards affecting the dimensional accuracy of the cryogenic valve seal. 


We take quality as the foundation, highly focus on product quality, and provide you with professional solutions for 800LB Low Temperature / Cryogenic Forged Steel Ball Valve (GADQ11/61F). After years of stable development, our company has established a complete system and continuously expanded the field of business. We have always pursued the enterprise spirit of excellence, continuous innovation, and the quality policy of persisting in quality and manufacturing products with value.

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