Pressure Vessels

Wide Range of Applications for Pressure Vessels

Our pressure vessels are designed to meet the high-performance requirements of numerous industries, including pharmaceuticals, chemicals, food, dairy processing, petroleum, and seawater desalination. Common applications include:

• Reactors and jacketed reactors for complex chemical processes.

• Distillation columns for separation and sterilization.

• Heat exchangers and vacuum tanks for thermal management.

• Mixing vessels for precise material homogenization.

Precision Design and Fabrication of Pressure Vessels

A high-quality pressure vessel is more than just a storage tank; it is a system composed of precisely designed components:

• Vessel Shell: Constructed from high-grade stainless steel or carbon steel, with carefully calculated wall thickness to withstand specific internal pressures and corrosive environments.

• Specialized Heads: We offer a variety of head designs to meet your process requirements:

• Spherical (ASME Flanges and Discs): The most versatile and widely used.

• Elliptical: Optimized design for better pressure distribution.

• Conical and Flat Heads: Specifically designed for sanitary drainage or low-pressure applications.

• Reliable Supports: Supports are divided into vertical and horizontal vessel supports. Vertical vessel supports include leg supports, pedestal supports, lug supports, and skirt supports.

Pressure Vessel Safety, Temperature Control, Heat Transfer, and Precision Finishing

• Pressure Relief and Safety: All vessels are equipped with ASME-certified safety relief valves or rupture discs to ensure safe operation.

• Heat Transfer Technology: Utilizing our mechanical recessed jackets, half-tube coils, or traditional jackets, we achieve rapid heating and cooling, maximizing efficiency.

• High-End Surface Finishes: We offer electropolishing and passivation services to ensure a mirror-smooth, contamination-free surface, crucial for a hygienic and sterile environment.

Frequently Asked Questions: Pressure Vessel Manufacturing

Q1: What is the best material for industrial pressure vessels?

While stainless steel (304 and 316L) is the industry standard due to its superior corrosion resistance and hygienic properties, carbon steel is often used in high-pressure applications where budget and durability are primary considerations. CEC specializes in providing high-quality stainless steel machining services for pharmaceutical and food processing environments.

Q2: Which pressure vessel head design should I choose?

The choice depends on your pressure requirements and budget:

• Spherical heads are the most common and cost-effective general-purpose heads.

• Elliptical heads have a higher strength-to-thickness ratio and can withstand higher pressures.

• Conical heads are ideal for hygienic applications requiring complete drainage.

• Flat heads are suitable for low-pressure, small-diameter vessels.

Q3: How can I ensure my pressure vessel meets safety standards?

Safety is paramount. All vessels must be equipped with pressure relief devices that meet ASME standards, such as safety valves or rupture discs, to prevent overpressure. In addition, our containers can be passivated and electropolished to ensure a contamination-free surface, which is crucial for aseptic operation.

Q4: What are the options for heating and cooling pressure vessels?

We offer a variety of heat exchange surface options:

• Mechanical recessed jacket: Cost-effective and efficient, enabling stable temperature control.

• Half-tube coil: Best suited for rapid heating/cooling and steam.

• Traditional jacket: Suitable for high-flow or low-pressure media.

The working pressure is not less than 0.1MPa (excluding the static pressure of the liquid column), the product of the working pressure and the volume is greater than or equal to 2.5MPa.L, and the medium is gas, liquefied gas, and liquid with a maximum working temperature higher than or equal to its standard boiling point.

Zhengzhong Technology manufactures the following products:

Low-pressure (code L) container 0.1 MPa≤p<1.6 MPa

Medium-pressure (code M) container 1.6 MPa≤p<10.0 MPa